Revision 0:7d8ffdfdb16e, committed 2021-10-22

Comitter:

ashi31

Date:

Fri Oct 22 03:57:47 2021 +0000

Commit message:

Lab4

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/4DGL-uLCD-SE.lib	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/4180_1/code/4DGL-uLCD-SE/#e39a44de229a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Die.cpp	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,140 @@
+#include "Die.h"
+
+#include <string>
+#include <iostream>
+
+#include <stdlib.h>     /* srand, rand */
+#include <time.h>       /* time */
+
+#define WHITE 0xFFFFFF
+
+using namespace std;
+
+//Constructors
+Die::Die(){
+    val = 1;
+}
+
+Die::Die(int v){
+    if((v > 0) && (v < 7)){
+        val = v;
+    }
+    else{
+        val = 1;
+    }
+}
+
+//Public Methods
+void Die::rollDie(){
+    
+    val = rand()%6+1;
+}
+
+//6 draw functions
+void Die::draw1(int pos, uLCD_4DGL& scr){
+    int ycent = 42*(((pos-1)/3)+1)-21;
+    int xcent = 42*(((pos-1)%3)+1)-21;
+    
+    int width = 20;
+    
+    int rad = 5;
+    
+    scr.rectangle(xcent-width, ycent-width, xcent+width, ycent+width, WHITE);
+    scr.filled_circle(xcent,ycent,rad,WHITE);
+}
+
+void Die::draw2(int pos, uLCD_4DGL& scr){
+    int ycent = 42*(((pos-1)/3)+1)-21;
+    int xcent = 42*(((pos-1)%3)+1)-21;
+    
+    int width = 20;
+    
+    int rad = 5;
+    
+    scr.rectangle(xcent-width, ycent-width, xcent+width, ycent+width, WHITE);
+    scr.filled_circle(xcent+12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent-12,rad,WHITE);
+}
+
+void Die::draw3(int pos, uLCD_4DGL& scr){
+    int ycent = 42*(((pos-1)/3)+1)-21;
+    int xcent = 42*(((pos-1)%3)+1)-21;
+    
+    int width = 20;
+    
+    int rad = 5;
+    
+    scr.rectangle(xcent-width, ycent-width, xcent+width, ycent+width, WHITE);
+    scr.filled_circle(xcent+12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent,ycent,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent-12,rad,WHITE);
+}
+
+void Die::draw4(int pos, uLCD_4DGL& scr){
+    int ycent = 42*(((pos-1)/3)+1)-21;
+    int xcent = 42*(((pos-1)%3)+1)-21;
+    
+    int width = 20;
+    
+    int rad = 5;
+    
+    scr.rectangle(xcent-width, ycent-width, xcent+width, ycent+width, WHITE);
+    scr.filled_circle(xcent+12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent+12,ycent-12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent-12,rad,WHITE);
+}
+
+void Die::draw5(int pos, uLCD_4DGL& scr){
+    int ycent = 42*(((pos-1)/3)+1)-21;
+    int xcent = 42*(((pos-1)%3)+1)-21;
+    
+    int width = 20;
+    
+    int rad = 5;
+    
+    scr.rectangle(xcent-width, ycent-width, xcent+width, ycent+width, WHITE);
+    scr.filled_circle(xcent,ycent,rad,WHITE);
+    scr.filled_circle(xcent+12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent+12,ycent-12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent-12,rad,WHITE);
+}
+
+void Die::draw6(int pos, uLCD_4DGL& scr){
+    int ycent = 42*(((pos-1)/3)+1)-21;
+    int xcent = 42*(((pos-1)%3)+1)-21;
+    
+    int width = 20;
+    
+    int rad = 5;
+    
+    scr.rectangle(xcent-width, ycent-width, xcent+width, ycent+width, WHITE);
+    scr.filled_circle(xcent-12,ycent,rad,WHITE);
+    scr.filled_circle(xcent+12,ycent,rad,WHITE);
+    scr.filled_circle(xcent+12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent+12,ycent-12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent+12,rad,WHITE);
+    scr.filled_circle(xcent-12,ycent-12,rad,WHITE);
+}
+
+//display Die based on value
+void Die::displayDie(int position, uLCD_4DGL& screen){
+       if(val == 1){draw1(position,screen);}
+       if(val == 2){draw2(position,screen);}
+       if(val == 3){draw3(position,screen);}
+       if(val == 4){draw4(position,screen);}
+       if(val == 5){draw5(position,screen);}
+       if(val == 6){draw6(position,screen);}
+}
+
+
+
+//S&G
+void Die::setVal(int v){
+    val = v;
+}
+
+int Die::getVal(){
+    return val;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Die.h	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,41 @@
+#ifndef DIE_H
+#define DIE_H
+
+#include "mbed.h"
+#include "uLCD_4DGL.h"
+
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+class Die{
+    public:
+        //Constructor
+        Die();
+        Die(int v);
+        
+        //public methods
+        void rollDie();
+        
+        //draw methods
+        void draw1(int, uLCD_4DGL&);
+        void draw2(int, uLCD_4DGL&);
+        void draw3(int, uLCD_4DGL&);
+        void draw4(int, uLCD_4DGL&);
+        void draw5(int, uLCD_4DGL&);
+        void draw6(int, uLCD_4DGL&);
+        
+        //display drawings
+        void displayDie(int, uLCD_4DGL&);
+               
+        //val s&g
+        int getVal();
+        void setVal(int);
+        
+    private:
+        int val;
+};
+
+#endif
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FarkleGame.cpp	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,225 @@
+#include "Die.h"
+#include "FarkleGame.h"
+
+#include <string>
+#include <iostream>
+#include <sstream>
+
+using namespace std;
+
+//Constructors
+FarkleGame::FarkleGame(){
+    Die Dice[6];
+    int DiceVals[6];
+    
+    int turnScore = 0;
+    int rollScore = 0;
+    int farkles = 0;
+}
+
+//Method
+void FarkleGame::dispIntro(uLCD_4DGL& scr, int nd){
+    scr.cls();
+    scr.display_control(PORTRAIT);
+
+    scr.text_width(2);
+    scr.text_height(2);
+    scr.locate(0,1);
+    scr.printf("Shake\n");
+    scr.printf("Board\n");
+    scr.printf("------\n");
+    scr.printf("To\n");
+    scr.printf("Roll\n");
+    scr.printf("%d Dice", nd);
+}
+
+void FarkleGame::init(){
+    turnScore = 0;
+    rollScore = 0;
+    farkles = 0;
+}
+
+void FarkleGame::rollDice(){
+    for(int i = 0; i < 6; i++){
+        Dice[i].rollDie();
+    }
+}
+
+void FarkleGame::displayDice(uLCD_4DGL& scr, int nd){
+    
+    scr.cls();
+    scr.display_control(PORTRAIT);
+    
+    for(int i = 0; i < nd; i++){
+        Dice[i].displayDie(i+1, scr);
+    }
+    
+}
+
+void FarkleGame::loadVals(int nd){
+    for(int i = 0; i < 6; i++){
+        DiceVals[i] = 0;
+    }
+    for(int i = 0; i < nd; i++){
+        if(Dice[i].getVal() == 1){
+            DiceVals[0]++;
+        }else if(Dice[i].getVal() == 2){
+            DiceVals[1]++;
+        }else if(Dice[i].getVal() == 3){
+            DiceVals[2]++;
+        }else if(Dice[i].getVal() == 4){
+            DiceVals[3]++;
+        }else if(Dice[i].getVal() == 5){
+            DiceVals[4]++;
+        }else if(Dice[i].getVal() == 6){
+            DiceVals[5]++;
+        }
+    }    
+}
+
+int FarkleGame::calcScore(){
+    //Scores will be checked in descending order of value
+    
+    //check for 6
+    for(int i = 0; i < 6; i++){
+        if(DiceVals[i] == 6){
+            return 3000;
+        }
+    }
+    
+    //check for 2triplets
+    int tripCount = 0;
+    for(int i = 0; i < 6; i++){
+        if(DiceVals[i] == 3) tripCount++;
+    }
+    if(tripCount == 2){
+        return 2500;
+    }
+    
+    //check for 5
+    for(int i = 0; i < 6; i++){
+        if(DiceVals[i] == 5){
+            return 2000;
+        }
+    }
+    
+    //check for 123456
+    int singCount = 0;
+    for(int i = 0; i < 6; i++){
+        if(DiceVals[i] == 1) singCount++;
+    }
+    if(singCount == 6){
+        return 1500;
+    }
+    
+    //check for 3doubs
+    int doubCount = 0;
+    for(int i = 0; i < 6; i++){
+        if(DiceVals[i] == 2) doubCount++;
+    }
+    if(doubCount == 3){
+        return 1500;
+    }
+
+    //check for 4
+    for(int i = 0; i < 6; i++){
+        if(DiceVals[i] == 4){
+            return 1000;
+        }
+    }
+    
+    //check trips
+    if(tripCount == 1){
+        if(DiceVals[0] == 3){
+            return 1000;
+        }else if(DiceVals[5] == 3){
+            return 600;
+        }
+        else if(DiceVals[4] == 3){
+            return 500;
+        }else if(DiceVals[3] == 3){
+            return 400;
+        }else if(DiceVals[2] == 3){
+            return 300;
+        }else if(DiceVals[1] == 3){
+            return 200;
+        }
+    }
+    
+    //check 1
+    if(DiceVals[0] != 0){
+        return 100;
+    }
+    
+    //check 5
+    if(DiceVals[4] != 0){
+        return 50;
+    }
+
+    farkles++;
+
+    return 0;
+}
+
+void FarkleGame::updateScores(){
+    rollScore = calcScore();
+    turnScore += rollScore;
+    if(farkles > 0){
+        turnScore = 0;
+    }
+}
+
+void FarkleGame::dispFarkle(uLCD_4DGL& scr){
+    scr.text_width(2);
+    scr.text_height(2);
+    scr.locate(0,6);
+    
+    scr.printf("FARKLE!");
+}
+
+void FarkleGame::dispScore(uLCD_4DGL& scr){
+    scr.text_width(1);
+    scr.text_height(1);
+    scr.locate(0,11);
+    
+    scr.printf("\nThis Turn: %d\n", turnScore);
+    scr.printf("\nThis Roll: %d\n", rollScore);
+    //scr.printf("Val Counts: %d %d %d %d %d %d", DiceVals[0], DiceVals[1], DiceVals[2], DiceVals[3], DiceVals[4], DiceVals[5]);
+}
+
+void FarkleGame::dispTurn(uLCD_4DGL& scr){
+    scr.cls();
+    scr.display_control(PORTRAIT);
+
+    scr.text_width(2);
+    scr.text_height(2);
+    scr.locate(0,1);
+    scr.printf("Your\n");
+    scr.printf("Turn\n");
+    scr.printf("Score\n");
+    scr.printf("-----\n");
+    scr.printf("%d\n", turnScore);
+}
+
+void FarkleGame::scrnWipe(uLCD_4DGL& scr){
+    scr.cls();
+}
+
+bool FarkleGame::checkRoll(MMA8452& a){
+    double x = 0;
+    double y = 0;
+    double z = 0;
+    
+    a.readXYZGravity(&x,&y,&z);
+    
+    return (x > 0.5 || x < -0.5 || y > 0.5 || y < -0.5);
+}
+
+//S&G
+void FarkleGame::setDieVal(int pos, int v){
+    Dice[pos-1].setVal(v);
+}
+
+int FarkleGame::getDieVal(int pos){
+    return Dice[pos-1].getVal();
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FarkleGame.h	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,50 @@
+#ifndef FARKLEGAME_H
+#define FARKLEGAME_H
+
+#include "Die.h"
+#include "MMA8452.h"
+
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+class FarkleGame{
+    public:
+        //Constructor
+        FarkleGame();
+        
+        //Methods
+        void dispIntro(uLCD_4DGL&, int);
+        void init();
+        
+        //rolling/scoring methods
+        void rollDice();
+        void displayDice(uLCD_4DGL&, int);
+        void loadVals(int);
+        int calcScore();
+        void updateScores();
+        
+        //display methods
+        void dispFarkle(uLCD_4DGL&);
+        void dispScore(uLCD_4DGL&);
+        void dispTurn(uLCD_4DGL&);
+        void scrnWipe(uLCD_4DGL&);
+
+        //acc methods
+        bool checkRoll(MMA8452&);
+        
+        //S&G
+        int getDieVal(int);
+        void setDieVal(int, int);
+        
+    private:
+        Die Dice[6];
+        int DiceVals[6];
+        
+        int turnScore;
+        int rollScore;
+        int farkles;
+};
+
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MMA8452.cpp	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,538 @@
+// Authors: Ashley Mills, Nicholas Herriot
+/* Copyright (c) 2013 Vodafone, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+#include "MMA8452.h"
+#include "mbed.h"
+ 
+#ifdef MMA8452_DEBUG
+// you need to define Serial pc(USBTX,USBRX) somewhere for the below line to make sense
+extern Serial pc;
+#define MMA8452_DBG(...) pc.printf(__VA_ARGS__); pc.printf("\r\n");
+#else
+#define MMA8452_DBG(...)
+#endif
+ 
+// Connect module at I2C address using I2C port pins sda and scl
+MMA8452::MMA8452(PinName sda, PinName scl, int frequency) : _i2c(sda, scl) , _frequency(frequency) {
+   MMA8452_DBG("Creating MMA8452");
+   
+   // set I2C frequency
+   _i2c.frequency(_frequency);
+   
+   // setup read and write addresses for convenience
+   _readAddress   = MMA8452_ADDRESS | 0x01;
+   _writeAddress  = MMA8452_ADDRESS & 0xFE;
+   
+   // set some defaults
+   _bitDepth = BIT_DEPTH_UNKNOWN;
+   setBitDepth(BIT_DEPTH_12);
+   _dynamicRange = DYNAMIC_RANGE_UNKNOWN;
+   setDynamicRange(DYNAMIC_RANGE_2G);
+   
+   MMA8452_DBG("Done");
+}
+ 
+ 
+// Destroys instance
+MMA8452::~MMA8452() {}
+ 
+// Setting the control register bit 1 to true to activate the MMA8452
+int MMA8452::activate() {
+    // perform write and return error code
+    return logicalORRegister(MMA8452_CTRL_REG_1,MMA8452_ACTIVE_MASK);
+}
+ 
+// Setting the control register bit 1 to 0 to standby the MMA8452
+int MMA8452::standby() {
+    // perform write and return error code
+    return logicalANDRegister(MMA8452_CTRL_REG_1,MMA8452_STANDBY_MASK);
+}
+ 
+// this reads a register, applies a bitmask with logical AND, sets a value with logical OR,
+// and optionally goes into and out of standby at the beginning and end of the function respectively
+int MMA8452::maskAndApplyRegister(char reg, char mask, char value, int toggleActivation) {
+   if(toggleActivation) {
+       if(standby()) {
+          return 1;
+       }
+   }
+   
+   // read from register
+   char oldValue = 0;
+   if(readRegister(reg,&oldValue)) {
+      return 1;
+   }
+   
+   // apply bitmask
+   oldValue &= mask;
+   
+   // set value
+   oldValue |= value;
+   
+   // write back to register
+   if(writeRegister(reg,oldValue)) {
+      return 1;
+   }
+   
+   if(toggleActivation) {
+       if(activate()) {
+          return 1;
+       }
+   }
+   return 0;
+}
+ 
+int MMA8452::setDynamicRange(DynamicRange range, int toggleActivation) {
+   _dynamicRange = range;
+   return maskAndApplyRegister(
+      MMA8452_XYZ_DATA_CFG,
+      MMA8452_DYNAMIC_RANGE_MASK,
+      range,
+      toggleActivation
+   );
+}
+ 
+int MMA8452::setDataRate(DataRateHz dataRate, int toggleActivation) {
+   return maskAndApplyRegister(
+       MMA8452_CTRL_REG_1,
+       MMA8452_DATA_RATE_MASK,
+       dataRate<<MMA8452_DATA_RATE_MASK_SHIFT,
+       toggleActivation
+   );
+}
+ 
+int MMA8452::setBitDepth(BitDepth depth,int toggleActivation) {
+   _bitDepth = depth;
+   return maskAndApplyRegister(
+      MMA8452_CTRL_REG_1,
+      MMA8452_BIT_DEPTH_MASK,
+      depth<<MMA8452_BIT_DEPTH_MASK_SHIFT,
+      toggleActivation
+   );
+}
+ 
+char MMA8452::getMaskedRegister(int addr, char mask) {
+   char rval = 0;
+   if(readRegister(addr,&rval)) {
+      return 0;
+   }
+   return (rval&mask);
+}
+ 
+int MMA8452::isXYZReady() {
+   return getMaskedRegister(MMA8452_STATUS,MMA8452_STATUS_ZYXDR_MASK)>0;
+}
+ 
+int MMA8452::isXReady() {
+   return getMaskedRegister(MMA8452_STATUS,MMA8452_STATUS_XDR_MASK)>0;
+}
+ 
+int MMA8452::isYReady() {
+   return getMaskedRegister(MMA8452_STATUS,MMA8452_STATUS_YDR_MASK)>0;
+}
+ 
+int MMA8452::isZReady() {
+   return getMaskedRegister(MMA8452_STATUS,MMA8452_STATUS_ZDR_MASK)>0;
+}
+ 
+ 
+int MMA8452::getDeviceID(char *dst) {
+   return readRegister(MMA8452_WHO_AM_I,dst);
+}
+ 
+int MMA8452::getStatus(char* dst) {
+   return readRegister(MMA8452_STATUS,dst);
+}
+ 
+MMA8452::DynamicRange MMA8452::getDynamicRange() {
+   char rval = 0;
+   if(readRegister(MMA8452_XYZ_DATA_CFG,&rval)) {
+      return MMA8452::DYNAMIC_RANGE_UNKNOWN;
+   }
+   rval &= (MMA8452_DYNAMIC_RANGE_MASK^0xFF);
+   return (MMA8452::DynamicRange)rval;
+}
+ 
+MMA8452::DataRateHz MMA8452::getDataRate() {
+   char rval = 0;
+   if(readRegister(MMA8452_CTRL_REG_1,&rval)) {
+      return MMA8452::RATE_UNKNOWN;
+   }
+   // logical AND with inverse of mask
+   rval = rval&(MMA8452_DATA_RATE_MASK^0xFF);
+   // shift back into position
+   rval >>= MMA8452_DATA_RATE_MASK_SHIFT;
+   return (MMA8452::DataRateHz)rval;
+}
+ 
+// Reads xyz
+int MMA8452::readXYZRaw(char *dst) {
+   if(_bitDepth==BIT_DEPTH_UNKNOWN) {
+      return 1;
+   }
+   int readLen = 3;
+   if(_bitDepth==BIT_DEPTH_12) {
+      readLen = 6;
+   }
+   return readRegister(MMA8452_OUT_X_MSB,dst,readLen);
+}
+ 
+int MMA8452::readXRaw(char *dst) {
+   if(_bitDepth==BIT_DEPTH_UNKNOWN) {
+      return 1;
+   }
+   int readLen = 1;
+   if(_bitDepth==BIT_DEPTH_12) {
+      readLen = 2;
+   }
+   return readRegister(MMA8452_OUT_X_MSB,dst,readLen);
+}
+ 
+int MMA8452::readYRaw(char *dst) {
+   if(_bitDepth==BIT_DEPTH_UNKNOWN) {
+      return 1;
+   }
+   int readLen = 1;
+   if(_bitDepth==BIT_DEPTH_12) {
+      readLen = 2;
+   }
+   return readRegister(MMA8452_OUT_Y_MSB,dst,readLen);
+}
+ 
+int MMA8452::readZRaw(char *dst) {
+   if(_bitDepth==BIT_DEPTH_UNKNOWN) {
+      return 1;
+   }
+   int readLen = 1;
+   if(_bitDepth==BIT_DEPTH_12) {
+      readLen = 2;
+   }
+   return readRegister(MMA8452_OUT_Z_MSB,dst,readLen);
+}
+ 
+int MMA8452::readXYZCounts(int *x, int *y, int *z) {
+   char buf[6];
+   if(readXYZRaw((char*)&buf)) {
+       return 1;
+   }
+   if(_bitDepth==BIT_DEPTH_12) {
+     *x = twelveBitToSigned(&buf[0]);
+     *y = twelveBitToSigned(&buf[2]);
+     *z = twelveBitToSigned(&buf[4]);
+   } else {
+     *x = eightBitToSigned(&buf[0]);
+     *y = eightBitToSigned(&buf[1]);
+     *z = eightBitToSigned(&buf[2]);
+   }
+   
+   return 0;
+}
+ 
+int MMA8452::readXCount(int *x) {
+   char buf[2];
+   if(readXRaw((char*)&buf)) {
+       return 1;
+   }
+   if(_bitDepth==BIT_DEPTH_12) {
+     *x = twelveBitToSigned(&buf[0]);
+   } else {
+     *x = eightBitToSigned(&buf[0]);
+   }
+   return 0;
+}
+ 
+int MMA8452::readYCount(int *y) {
+   char buf[2];
+   if(readYRaw((char*)&buf)) {
+       return 1;
+   }
+   if(_bitDepth==BIT_DEPTH_12) {
+     *y = twelveBitToSigned(&buf[0]);
+   } else {
+     *y = eightBitToSigned(&buf[0]);
+   }
+   return 0;
+}
+ 
+int MMA8452::readZCount(int *z) {
+   char buf[2];
+   if(readZRaw((char*)&buf)) {
+       return 1;
+   }
+   if(_bitDepth==BIT_DEPTH_12) {
+     *z = twelveBitToSigned(&buf[0]);
+   } else {
+     *z = eightBitToSigned(&buf[0]);
+   }
+   return 0;
+}
+ 
+double MMA8452::convertCountToGravity(int count, int countsPerG) {
+   return (double)count/(double)countsPerG;
+}
+ 
+int MMA8452::getCountsPerG() {
+ // assume starting with DYNAMIC_RANGE_2G and BIT_DEPTH_12
+   int countsPerG = 1024;
+   if(_bitDepth==BIT_DEPTH_8) {
+      countsPerG = 64;
+   }
+   switch(_dynamicRange) {
+      case DYNAMIC_RANGE_4G:
+         countsPerG /= 2;
+      break;
+      case DYNAMIC_RANGE_8G:
+         countsPerG /= 4;
+      break;
+   }
+   return countsPerG;
+}
+ 
+int MMA8452::readXYZGravity(double *x, double *y, double *z) {
+   int xCount = 0, yCount = 0, zCount = 0;
+   if(readXYZCounts(&xCount,&yCount,&zCount)) {
+      return 1;
+   }
+   int countsPerG = getCountsPerG();
+   
+   *x = convertCountToGravity(xCount,countsPerG);
+   *y = convertCountToGravity(yCount,countsPerG);
+   *z = convertCountToGravity(zCount,countsPerG);
+   return 0;
+}
+ 
+int MMA8452::readXGravity(double *x) {
+   int xCount = 0;
+   if(readXCount(&xCount)) {
+      return 1;
+   }
+   int countsPerG = getCountsPerG();
+   
+   *x = convertCountToGravity(xCount,countsPerG);
+   return 0;
+}
+ 
+int MMA8452::readYGravity(double *y) {
+   int yCount = 0;
+   if(readYCount(&yCount)) {
+      return 1;
+   }
+   int countsPerG = getCountsPerG();
+   
+   *y = convertCountToGravity(yCount,countsPerG);
+   return 0;
+}
+ 
+int MMA8452::readZGravity(double *z) {
+   int zCount = 0;
+   if(readZCount(&zCount)) {
+      return 1;
+   }
+   int countsPerG = getCountsPerG();
+   
+   *z = convertCountToGravity(zCount,countsPerG);
+   return 0;
+}
+ 
+// apply an AND mask to a register. read register value, apply mask, write it back
+int MMA8452::logicalANDRegister(char addr, char mask) {
+   char value = 0;
+   // read register value
+   if(readRegister(addr,&value)) {
+      return 0;
+   }
+   // apply mask
+   value &= mask;
+   return writeRegister(addr,value);
+}
+ 
+ 
+// apply an OR mask to a register. read register value, apply mask, write it back
+int MMA8452::logicalORRegister(char addr, char mask) {
+   char value = 0;
+   // read register value
+   if(readRegister(addr,&value)) {
+      return 0;
+   }
+   // apply mask
+   value |= mask;
+   return writeRegister(addr,value);
+}
+ 
+// apply an OR mask to a register. read register value, apply mask, write it back
+int MMA8452::logicalXORRegister(char addr, char mask) {
+   char value = 0;
+   // read register value
+   if(readRegister(addr,&value)) {
+      return 0;
+   }
+   // apply mask
+   value ^= mask;
+   return writeRegister(addr,value);
+}
+ 
+// Write register (The device must be placed in Standby Mode to change the value of the registers) 
+int MMA8452::writeRegister(char addr, char data) {
+    // what this actually does is the following
+    // 1. tell I2C bus to start transaction
+    // 2. tell slave we want to write (slave address & write flag)
+    // 3. send the write address
+    // 4. send the data to write
+    // 5. tell I2C bus to end transaction
+ 
+    // we can wrap this up in the I2C library write function
+    char buf[2] = {0,0};
+    buf[0] = addr;
+    buf[1] = data;
+    return _i2c.write(MMA8452_ADDRESS, buf,2);
+    // note, could also do return writeRegister(addr,&data,1);
+}
+ 
+int MMA8452::eightBitToSigned(char *buf) {
+   return (int8_t)*buf;
+}
+ 
+int MMA8452::twelveBitToSigned(char *buf) {
+   // cheat by using the int16_t internal type
+   // all we need to do is convert to little-endian format and shift right
+   int16_t x = 0;
+   ((char*)&x)[1] = buf[0];
+   ((char*)&x)[0] = buf[1];
+   // note this only works because the below is an arithmetic right shift
+   return x>>4; 
+}
+ 
+int MMA8452::writeRegister(char addr, char *data, int nbytes) {
+    // writing multiple bytes is a little bit annoying because
+    // the I2C library doesn't support sending the address separately
+    // so we just do it manually
+    
+    // 1. tell I2C bus to start transaction
+    _i2c.start();
+    // 2. tell slave we want to write (slave address & write flag)
+    if(_i2c.write(_writeAddress)!=1) {
+       return 1;
+    }
+    // 3. send the write address
+    if(_i2c.write(addr)!=1) {
+       return 1;
+    }
+    // 4. send the data to write
+    for(int i=0; i<nbytes; i++) {
+       if(_i2c.write(data[i])!=1) {
+          return 1;
+       }
+    }
+    // 5. tell I2C bus to end transaction
+    _i2c.stop();
+    return 0;
+}
+ 
+int MMA8452::readRegister(char addr, char *dst, int nbytes) {
+    // this is a bit odd, but basically proceeds like this
+    // 1. Send a start command
+    // 2. Tell the slave we want to write (slave address & write flag)
+    // 3. Send the address of the register (addr)
+    // 4. Send another start command to delineate read portion
+    // 5. Tell the slave we want to read (slave address & read flag)
+    // 6. Read the register value bytes
+    // 7. Send a stop command
+    
+    // we can wrap this process in the I2C library read and write commands
+    if(_i2c.write(MMA8452_ADDRESS,&addr,1,true)) {
+       return 1;
+    }
+    return _i2c.read(MMA8452_ADDRESS,dst,nbytes);
+}
+ 
+// most registers are 1 byte, so here is a convenience function
+int MMA8452::readRegister(char addr, char *dst) {
+    return readRegister(addr,dst,1);
+}
+ 
+MMA8452::BitDepth MMA8452::getBitDepth() {
+   return _bitDepth;
+}
+ 
+#ifdef MMA8452_DEBUG
+void MMA8452::debugRegister(char reg) {
+   // get register value
+   char v = 0;
+   if(readRegister(reg,&v)) {
+      MMA8452_DBG("Error reading specified register");
+      return;
+   }
+   // print out details
+   switch(reg) {
+      case MMA8452_CTRL_REG_1:
+         MMA8452_DBG("CTRL_REG_1 has value: 0x%x",v);
+         MMA8452_DBG(" 7  ALSP_RATE_1: %d",(v&0x80)>>7);
+         MMA8452_DBG(" 6  ALSP_RATE_0: %d",(v&0x40)>>6);
+         MMA8452_DBG(" 5  DR2: %d",        (v&0x20)>>5);
+         MMA8452_DBG(" 4  DR1: %d",        (v&0x10)>>4);
+         MMA8452_DBG(" 3  DR0: %d",        (v&0x08)>>3);
+         MMA8452_DBG(" 2  LNOISE: %d",     (v&0x04)>>2);
+         MMA8452_DBG(" 1  FREAD: %d",      (v&0x02)>>1);
+         MMA8452_DBG(" 0  ACTIVE: %d",     (v&0x01));
+      break;
+        
+      case MMA8452_XYZ_DATA_CFG:
+         MMA8452_DBG("XYZ_DATA_CFG has value: 0x%x",v);
+         MMA8452_DBG(" 7  Unused: %d", (v&0x80)>>7);
+         MMA8452_DBG(" 6  0: %d",      (v&0x40)>>6);
+         MMA8452_DBG(" 5  0: %d",      (v&0x20)>>5);
+         MMA8452_DBG(" 4  HPF_Out: %d",(v&0x10)>>4);
+         MMA8452_DBG(" 3  0: %d",      (v&0x08)>>3);
+         MMA8452_DBG(" 2  0: %d",      (v&0x04)>>2);
+         MMA8452_DBG(" 1  FS1: %d",    (v&0x02)>>1);
+         MMA8452_DBG(" 0  FS0: %d",    (v&0x01));
+         switch(v&0x03) {
+            case 0:
+               MMA8452_DBG("Dynamic range: 2G");
+            break;
+            case 1:
+               MMA8452_DBG("Dynamic range: 4G");
+            break;
+            case 2:
+               MMA8452_DBG("Dynamic range: 8G");
+            break;
+            default:
+               MMA8452_DBG("Unknown dynamic range");
+            break;
+         }
+      break;
+      
+      case MMA8452_STATUS:
+         MMA8452_DBG("STATUS has value: 0x%x",v);
+         MMA8452_DBG(" 7  ZYXOW: %d",(v&0x80)>>7);
+         MMA8452_DBG(" 6  ZOW: %d",  (v&0x40)>>6);
+         MMA8452_DBG(" 5  YOW: %d",  (v&0x20)>>5);
+         MMA8452_DBG(" 4  XOW: %d",  (v&0x10)>>4);
+         MMA8452_DBG(" 3  ZYXDR: %d",(v&0x08)>>3);
+         MMA8452_DBG(" 2  ZDR: %d",  (v&0x04)>>2);
+         MMA8452_DBG(" 1  YDR: %d",  (v&0x02)>>1);
+         MMA8452_DBG(" 0  XDR: %d",  (v&0x01));
+      break;
+      
+      default:
+         MMA8452_DBG("Unknown register address: 0x%x",reg);
+      break;
+   }
+}
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MMA8452.h	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,344 @@
+#pragma once
+ 
+// Authors: Ashley Mills, Nicholas Herriot
+/* Copyright (c) 2013 Vodafone, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+// the SparkFun breakout board defaults to 1, set to 0 if SA0 jumper on the bottom of the board is set
+// see the Table 10. I2C Device Address Sequence in Freescale MMA8452Q pdf
+ 
+#include "mbed.h" 
+ 
+#define MMA8452_DEBUG 1
+ 
+// More info on MCU Master address can be found on section 5.10.1 of http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MMA8452Q
+#define SA0 1
+#if SA0
+  #define MMA8452_ADDRESS 0x3A // 0x1D<<1  // SA0 is high, 0x1C if low - 
+#else
+  #define MMA8452_ADDRESS 0x38 // 0x1C<<1
+#endif
+ 
+// Register descriptions found in section 6 of pdf
+#define MMA8452_STATUS 0x00        // Type 'read' : Status of the data registers
+#define MMA8452_OUT_X_MSB 0x01     // Type 'read' : x axis - MSB of 2 byte sample
+#define MMA8452_OUT_X_LSB 0x02     // Type 'read' : x axis - LSB of 2 byte sample
+#define MMA8452_OUT_Y_MSB 0x03     // Type 'read' : y axis - MSB of 2 byte sample
+#define MMA8452_OUT_Y_LSB 0x04     // Type 'read' : y axis - LSB of 2 byte sample
+#define MMA8452_OUT_Z_MSB 0x05     // Type 'read' : z axis - MSB of 2 byte sample
+#define MMA8452_OUT_Z_LSB 0x06     // Type 'read' : z axis - LSB of 2 byte sample
+ 
+// register definitions
+#define MMA8452_XYZ_DATA_CFG 0x0E
+ 
+#define MMA8452_SYSMOD 0x0B        // Type 'read' : This tells you if device is active, sleep or standy 0x00=STANDBY 0x01=WAKE 0x02=SLEEP
+#define MMA8452_WHO_AM_I 0x0D      // Type 'read' : This should return the device id of 0x2A
+ 
+#define MMA8452_PL_STATUS 0x10     // Type 'read' : This shows portrait landscape mode orientation
+#define MMA8452_PL_CFG 0x11        // Type 'read/write' : This allows portrait landscape configuration
+#define MMA8452_PL_COUNT 0x12      // Type 'read' : This is the portraint landscape debounce counter
+#define MMA8452_PL_BF_ZCOMP 0x13   // Type 'read' :
+#define MMA8452_PL_THS_REG 0x14    // Type 'read' :
+ 
+#define MMA8452_FF_MT_CFG 0X15     // Type 'read/write' : Freefaul motion functional block configuration
+#define MMA8452_FF_MT_SRC 0X16     // Type 'read' : Freefaul motion event source register
+#define MMA8452_FF_MT_THS 0X17     // Type 'read' : Freefaul motion threshold register
+#define MMA8452_FF_COUNT 0X18      // Type 'read' : Freefaul motion debouce counter
+ 
+#define MMA8452_ASLP_COUNT 0x29    // Type 'read/write' : Counter settings for auto sleep
+#define MMA8452_CTRL_REG_1 0x2A    // Type 'read/write' :
+#define MMA8452_CTRL_REG_2 0x2B    // Type 'read/write' :
+#define MMA8452_CTRL_REG_3 0x2C    // Type 'read/write' :
+#define MMA8452_CTRL_REG_4 0x2D    // Type 'read/write' :
+#define MMA8452_CTRL_REG_5 0x2E    // Type 'read/write' :
+ 
+// Defined in table 13 of the Freescale PDF
+/// xxx these all need to have better names
+#define STANDBY 0x00                        // State value returned after a SYSMOD request, it can be in state STANDBY, WAKE or SLEEP
+#define WAKE 0x01                           // State value returned after a SYSMOD request, it can be in state STANDBY, WAKE or SLEEP
+#define SLEEP 0x02                          // State value returned after a SYSMOD request, it can be in state STANDBY, WAKE or SLEEP
+#define ACTIVE 0x01                         // Stage value returned and set in Control Register 1, it can be STANDBY=00, or ACTIVE=01
+ 
+#define TILT_STATUS 0x03        // Tilt Status (Read only)
+#define SRST_STATUS 0x04        // Sample Rate Status Register (Read only)
+#define SPCNT_STATUS 0x05       // Sleep Count Register (Read/Write)
+#define INTSU_STATUS 0x06       // Interrupt Setup Register
+#define MODE_STATUS 0x07        // Mode Register (Read/Write)
+#define SR_STATUS 0x08          // Auto-Wake and Active Mode Portrait/Landscape Samples per Seconds Register (Read/Write)
+#define PDET_STATUS 0x09        // Tap/Pulse Detection Register (Read/Write)
+#define PD_STATUS 0xA           // Tap/Pulse Debounce Count Register (Read/Write)
+ 
+// masks for enabling/disabling standby
+#define MMA8452_ACTIVE_MASK 0x01
+#define MMA8452_STANDBY_MASK 0xFE
+ 
+// mask for dynamic range reading and writing
+#define MMA8452_DYNAMIC_RANGE_MASK 0xFC
+ 
+// mask and shift for data rate reading and writing
+#define MMA8452_DATA_RATE_MASK 0xC7
+#define MMA8452_DATA_RATE_MASK_SHIFT 0x03
+ 
+// mask and shift for general reading and writing
+#define MMA8452_WRITE_MASK 0xFE
+#define MMA8452_READ_MASK 0x01
+ 
+// mask and shift for bit depth reading and writing
+#define MMA8452_BIT_DEPTH_MASK 0xFD
+#define MMA8452_BIT_DEPTH_MASK_SHIFT 0x01
+ 
+// status masks and shifts
+#define MMA8452_STATUS_ZYXDR_MASK 0x08
+#define MMA8452_STATUS_ZDR_MASK 0x04
+#define MMA8452_STATUS_YDR_MASK 0x02
+#define MMA8452_STATUS_XDR_MASK 0x01
+ 
+/**
+ * Wrapper for the MMA8452 I2C driven accelerometer.
+ */
+class MMA8452 {
+            
+    public:
+    
+       enum DynamicRange {
+           DYNAMIC_RANGE_2G=0x00,
+           DYNAMIC_RANGE_4G,
+           DYNAMIC_RANGE_8G,
+           DYNAMIC_RANGE_UNKNOWN
+       };
+        
+       enum BitDepth {
+           BIT_DEPTH_12=0x00,
+           BIT_DEPTH_8, // 1 sets fast read mode, hence the inversion
+           BIT_DEPTH_UNKNOWN
+       };
+       
+       enum DataRateHz {
+          RATE_800=0x00,
+          RATE_400,
+          RATE_200,
+          RATE_100,
+          RATE_50,
+          RATE_12_5,
+          RATE_6_25,
+          RATE_1_563,
+          RATE_UNKNOWN
+       };
+         
+       /**
+        * Create an accelerometer object connected to the specified I2C pins.
+        *
+        * @param sda I2C data port
+        * @param scl I2C clock port
+        * @param frequency 
+        * 
+        */ 
+      MMA8452(PinName sda, PinName scl, int frequency);
+       
+      /// Destructor
+      ~MMA8452();
+      
+      /**
+       * Puts the MMA8452 in active mode.
+       * @return 0 on success, 1 on failure.
+       */
+      int activate();
+ 
+      /**
+       * Puts the MMA8452 in standby.
+       * @return 0 on success, 1 on failure.
+       */
+      int standby();      
+    
+       /**
+        * Read the device ID from the accelerometer (should be 0x2a)
+        *
+        * @param dst pointer to store the ID
+        * @return 0 on success, 1 on failure.
+        */        
+      int getDeviceID(char* dst);  
+      
+      /**
+       * Read the MMA8452 status register.
+       *
+       * @param dst pointer to store the register value.
+       * @ return 0 on success, 1 on failure.
+       */
+      int getStatus(char* dst);  
+      
+      /** 
+       * Read the raw x, y, an z registers of the MMA8452 in one operation.
+       * All three registers are read sequentially and stored in the provided buffer.
+       * The stored values are signed 2's complement left-aligned 12 or 8 bit integers.
+       *
+       * @param dst The destination buffer. Note that this needs to be 3 bytes for
+       * BIT_DEPTH_8 and 6 bytes for BIT_DEPTH_12. It is upto the caller to ensure this.
+       * @return 0 for success, and 1 for failure
+       * @sa setBitDepth
+       */ 
+      int readXYZRaw(char *dst);
+      
+      /// Read the raw x register into the provided buffer. @sa readXYZRaw
+      int readXRaw(char *dst);
+      /// Read the raw y register into the provided buffer. @sa readXYZRaw
+      int readYRaw(char *dst);
+      /// Read the raw z register into the provided buffer. @sa readXYZRaw
+      int readZRaw(char *dst);
+      
+      /**
+       * Read the x, y, and z signed counts of the MMA8452 axes.
+       * 
+       * Count resolution is either 8 bits or 12 bits, and the range is either +-2G, +-4G, or +-8G
+       * depending on settings. The number of counts per G are 1024, 512, 256 for 2,4, and 8 G
+       * respectively at 12 bit resolution and 64, 32, 16 for 2, 4, and 8 G respectively at
+       * 8 bit resolution.
+       * 
+       * This function queries the MMA8452 and returns the signed counts for each axes.
+       *
+       * @param x Pointer to integer to store x count
+       * @param y Pointer to integer to store y count
+       * @param z Pointer to integer to store z count
+       * @return 0 on success, 1 on failure.
+       */
+      int readXYZCounts(int *x, int *y, int *z);
+      
+      /// Read the x axes signed count. @sa readXYZCounts
+      int readXCount(int *x);
+      /// Read the y axes signed count. @sa readXYZCounts
+      int readYCount(int *y);
+      /// Read the z axes signed count. @sa readXYZCounts
+      int readZCount(int *z);
+      
+      /**
+       * Read the x, y, and z accelerations measured in G.
+       *
+       * The measurement resolution is controlled via setBitDepth which can
+       * be 8 or 12, and by setDynamicRange, which can be +-2G, +-4G, or +-8G.
+       *
+       * @param x A pointer to the double to store the x acceleration in.
+       * @param y A pointer to the double to store the y acceleration in.
+       * @param z A pointer to the double to store the z acceleration in.
+       *
+       * @return 0 on success, 1 on failure.
+       */
+      int readXYZGravity(double *x, double *y, double *z);
+      
+      /// Read the x gravity in G into the provided double pointer. @sa readXYZGravity
+      int readXGravity(double *x);
+      /// Read the y gravity in G into the provided double pointer. @sa readXYZGravity
+      int readYGravity(double *y);
+      /// Read the z gravity in G into the provided double pointer. @sa readXYZGravity
+      int readZGravity(double *z);
+      
+      /// Returns 1 if data has been internally sampled (is available) for all axes since last read, 0 otherwise.
+      int isXYZReady();
+      /// Returns 1 if data has been internally sampled (is available) for the x-axis since last read, 0 otherwise.
+      int isXReady();
+      /// Returns 1 if data has been internally sampled (is available) for the y-axis since last read, 0 otherwise.
+      int isYReady();
+      /// Returns 1 if data has been internally sampled (is available) for the z-axis since last read, 0 otherwise.
+      int isZReady();
+            
+      /** 
+       * Reads a single byte from the specified MMA8452 register.
+       *
+       * @param addr The internal register address.
+       * @param dst The destination buffer address.
+       * @return 1 on success, 0 on failure.
+       */
+      int readRegister(char addr, char *dst);
+      
+      /** 
+       * Reads n bytes from the specified MMA8452 register.
+       *
+       * @param addr The internal register address.
+       * @param dst The destination buffer address.
+       * @param nbytes The number of bytes to read.
+       * @return 1 on success, 0 on failure.
+       */
+      int readRegister(char addr, char *dst, int nbytes);
+        
+       /** 
+        * Write to the specified MMA8452 register.
+        *
+        * @param addr The internal register address
+        * @param data Data byte to write
+        */    
+      int writeRegister(char addr, char data);
+      
+       /** 
+        * Write a data buffer to the specified MMA8452 register.
+        *
+        * @param addr The internal register address
+        * @param data Pointer to data buffer to write
+        * @param nbytes The length of the data buffer to write
+        */    
+      int writeRegister(char addr, char *data, int nbytes);
+      
+      int setDynamicRange(DynamicRange range, int toggleActivation=1);
+      int setBitDepth(BitDepth depth, int toggleActivation=1);
+      int setDataRate(DataRateHz dataRate, int toggleActivation=1);
+      
+      DynamicRange getDynamicRange();
+      DataRateHz getDataRate();
+      BitDepth getBitDepth();
+      
+      #ifdef MMA8452_DEBUG
+      void debugRegister(char reg);
+      #endif
+   
+    private:
+      /**
+       * Reads the specified register, applies the mask with logical AND, logical ORs the value
+       * and writes back the result to the register. If toggleActivation is set to true then the
+       * device is put in standby before the operation, and activated at the end.
+       * Setting it to false is useful for setting options on a device that you want to keep in
+       * standby.
+       */
+      int maskAndApplyRegister(char reg, char mask, char value, int toggleActivation);
+      
+      /// Reads the specified register, applies the mask with logical AND, and writes the result back.
+      int logicalANDRegister(char addr, char mask);
+      /// Reads the specified register, applies the mask with logical OR, and writes the result back.
+      int logicalORRegister(char addr, char mask);
+      /// Reads the specified register, applies the mask with logical XOR, and writes the result back.
+      int logicalXORRegister(char addr, char mask);
+      
+      /// Converts the 12-bit two's complement number in buf to a signed integer. Returns the integer.
+      int twelveBitToSigned(char *buf);
+      /// Converts the 8-bit two's complement number in buf to a signed integer. Returns the integer.
+      int eightBitToSigned(char *buf);
+      
+      /// Converts a count to a gravity using the supplied countsPerG. Returns the gravity.
+      double convertCountToGravity(int count, int countsPerG);
+      
+      /// Reads the register at addr, applies the mask with logical AND, and returns the result.
+      char getMaskedRegister(int addr, char mask);
+      
+      /// Get the counts per G for the current settings of bit depth and dynamic range.
+      int getCountsPerG();
+    
+      I2C _i2c;
+      int _frequency;
+      int _readAddress;
+      int _writeAddress;
+      
+      BitDepth _bitDepth;
+      DynamicRange _dynamicRange;       
+};
+            
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinDetect.h	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,501 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef AJK_PIN_DETECT_H
+#define AJK_PIN_DETECT_H
+
+#ifndef MBED_H
+#include "mbed.h"
+#endif
+
+#ifndef PINDETECT_PIN_ASSTERED
+#define PINDETECT_PIN_ASSTERED   1
+#endif
+
+#ifndef PINDETECT_SAMPLE_PERIOD
+#define PINDETECT_SAMPLE_PERIOD 20000
+#endif
+
+#ifndef PINDETECT_ASSERT_COUNT  
+#define PINDETECT_ASSERT_COUNT  1
+#endif
+
+#ifndef PINDETECT_HOLD_COUNT
+#define PINDETECT_HOLD_COUNT    50
+#endif
+
+namespace AjK {
+
+/** PinDetect adds mechanical switch debouncing to DigitialIn and interrupt callbacks.
+ *
+ * This is done by sampling the specified pin at regular intervals and detecting any
+ * change of state ( 0 -> 1 or 1 -> 0 ). When a state change is detected the attached
+ * callback handler is called. Additionally, if the pin stays in the same state after
+ * a state change for a defined period of time, an extra callback is made allowing a
+ * program to detect when a "key is pressed and held down" rather than a momentary
+ * key/switch press.
+ *
+ * All parameters are customisable which include:-
+ *  <ul>
+ *  <li> The sampling frequency. </li>
+ *  <li> The number of continuous samples until a state change is detected. </li> 
+ *  <li> The number of continuous samples until a key is assumed held after a state change. </li>
+ *  <li> The logic level which is assumed to be asserted (0volts or +volts). </li>
+ *  </ul>
+ *
+ * Only callbacks that have been attached will be called by the library.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "PinDetect.h"
+ *
+ * PinDetect  pin( p30 );
+ * DigitialOut led1( LED1 );
+ * DigitialOut led2( LED2 );
+ * DigitialOut led3( LED3 );
+ * DigitialOut led4( LED4 );
+ *
+ * void keyPressed( void ) {
+ *     led2 = 1;
+ *     led3 = 0;
+ *     led4 = 0;
+ * }
+ *
+ * void keyReleased( void ) {
+ *     led2 = 0;
+ *     led3 = 0;
+ *     led4 = 0;
+ * }
+ *
+ * void keyPressedHeld( void ) {
+ *     led3 = 1;
+ * }
+ *
+ * void keyReleasedHeld( void ) {
+ *     led4 = 1;
+ * }
+ *
+ * int main() {
+ *
+ *     pin.mode( PullDown );
+ *     pin.attach_asserted( &keyPressed );
+ *     pin.attach_deasserted( &keyReleased );
+ *     pin.attach_asserted_held( &keyPressedHeld );
+ *     pin.attach_deasserted_held( &keyReleasedHeld );
+ *
+ *     // Sampling does not begin until you set a frequency.
+ *     // The default is 20ms. If you want a different frequency
+ *     // then pass the period in microseconds for example, for 10ms :-
+ *     //     pin.setSampleFrequency( 10000 );
+ *     //
+ *     pin.setSampleFrequency(); // Defaults to 20ms.
+ *
+ *     while( 1 ) {
+ *         led1 = !led1;
+ *         wait( 0.2 );
+ *     }
+ * }
+ * @endcode
+ *
+ * This example will flash led1 in a similar to a standard starting program.
+ *
+ * Applying a "1" (switch on) to pin 30 will switch on led2, removing the "1" to "0"
+ * (switch off) led2 goes out. Holding the "switch" at one for one second will switch
+ * on led3. An unasserted P30 (switched off) will, after one second illuminate led4
+ * when the deasserted calledback is called.
+ *
+ * The above is a very basic introduction. For more details:-
+ * @see example.h
+ */
+class PinDetect {
+
+protected:
+    DigitalIn   *_in;
+    Ticker      *_ticker;
+    int         _prevState;
+    int         _currentStateCounter;
+    int         _sampleTime;
+    int         _assertValue;
+    int         _samplesTillAssertReload;
+    int         _samplesTillAssert;
+    int         _samplesTillHeldReload;
+    int         _samplesTillHeld;
+    FunctionPointer _callbackAsserted;
+    FunctionPointer _callbackDeasserted;
+    FunctionPointer _callbackAssertedHeld;
+    FunctionPointer _callbackDeassertedHeld;
+    
+    /** initialise class
+     *
+     * @param PinName p is a valid pin that supports DigitalIn
+     * @param PinMode m The mode the DigitalIn should use.
+     */
+    void init(PinName p, PinMode m) {
+        _sampleTime              = PINDETECT_SAMPLE_PERIOD;
+        _samplesTillAssert       = PINDETECT_ASSERT_COUNT;
+        _samplesTillHeld         = 0;
+        _samplesTillAssertReload = PINDETECT_ASSERT_COUNT;
+        _samplesTillHeldReload   = PINDETECT_HOLD_COUNT;
+        _assertValue             = PINDETECT_PIN_ASSTERED;
+        
+        _in = new DigitalIn( p );
+        _in->mode( m );        
+        _prevState = _in->read();        
+        _ticker = new Ticker;
+    }
+    
+public:
+
+    friend class Ticker;
+    
+    PinDetect() { error("You must supply a PinName"); }
+
+    /** PinDetect constructor
+     *
+     * By default the PinMode is set to PullDown.
+     *
+     * @see http://mbed.org/handbook/DigitalIn
+     * @param p PinName is a valid pin that supports DigitalIn
+     */    
+    PinDetect(PinName p) {
+        init( p, PullDown );
+    }
+
+    /** PinDetect constructor
+     *
+     * @see http://mbed.org/handbook/DigitalIn
+     * @param PinName p is a valid pin that supports DigitalIn
+     * @param PinMode m The mode the DigitalIn should use.
+     */    
+    PinDetect(PinName p, PinMode m) {
+        init( p, m );
+    }
+    
+    /** PinDetect destructor
+     */    
+    ~PinDetect() {
+        if ( _ticker )  delete( _ticker );
+        if ( _in )      delete( _in );
+    }
+    
+    /** Set the sampling time in microseconds.
+     *
+     * @param int The time between pin samples in microseconds.
+     */
+    void setSampleFrequency(int i = PINDETECT_SAMPLE_PERIOD) { 
+        _sampleTime = i; 
+        _prevState  = _in->read();        
+        _ticker->attach_us( this, &PinDetect::isr, _sampleTime );
+    }
+    
+    /** Set the value used as assert.
+     *
+     * Defaults to 1 (ie if pin == 1 then pin asserted).
+     *
+     * @param int New assert value (1 or 0)
+     */
+    void setAssertValue (int i = PINDETECT_PIN_ASSTERED) { _assertValue = i & 1; }
+    
+    /** Set the number of continuous samples until assert assumed.
+     *
+     * Defaults to 1 (1 * sample frequency).
+     *
+     * @param int The number of continuous samples until assert assumed.
+     */    
+    void setSamplesTillAssert(int i) { _samplesTillAssertReload = i; }
+    
+    /** Set the number of continuous samples until held assumed.
+     *
+     * Defaults to 50 * sample frequency.
+     *
+     * @param int The number of continuous samples until held assumed.
+     */    
+    void setSamplesTillHeld(int i) { _samplesTillHeldReload = i; }
+    
+    /** Set the pin mode.
+     *
+     * @see http://mbed.org/projects/libraries/api/mbed/trunk/DigitalInOut#DigitalInOut.mode
+     * @param PinMode m The mode to pass on to the DigitalIn
+     */
+    void mode(PinMode m) { _in->mode( m ); }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led1 = 1;
+     * };
+     * 
+     * main() {
+     *     pin.attach_asserted( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted.
+     * @param function A C function pointer
+     */
+    void attach_asserted(void (*function)(void)) {
+        _callbackAsserted.attach( function );
+    }
+    
+    /** Attach a callback object/method 
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led1 = 1; }
+     * };
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     *
+     * main() {
+     *     pin.attach_asserted( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_asserted(T *object, void (T::*member)(void)) {
+        _callbackAsserted.attach( object, member );        
+    }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led1 = 0;
+     * };
+     *
+     * main() {
+     *     pin.attach_deasserted( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted.
+     * @param function A C function pointer
+     */
+    void attach_deasserted(void (*function)(void)) {
+        _callbackDeasserted.attach( function );
+    }
+    
+    /** Attach a callback object/method
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led1 = 0; }
+     * };
+     *
+     * DigitalOut led1( LED1 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     * 
+     * main() {
+     *     pin.attach_deasserted( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_deasserted(T *object, void (T::*member)(void)) {
+        _callbackDeasserted.attach( object, member );        
+    }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led2( LED2 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led2 = 1;
+     * };
+     *
+     * main() {
+     *     pin.attach_asserted_held( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted and held.
+     * @param function A C function pointer
+     */
+    void attach_asserted_held(void (*function)(void)) {
+        _callbackAssertedHeld.attach( function );
+    }
+    
+    /** Attach a callback object/method
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led2 = 0; }
+     * };
+     *
+     * DigitalOut led2( LED2 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     * 
+     * main() {
+     *     pin.attach_asserted_held( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is asserted and held.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_asserted_held(T *object, void (T::*member)(void)) {
+        _callbackAssertedHeld.attach( object, member );        
+    }
+    
+    /** Attach a callback function 
+     *
+     * @code
+     *
+     * DigitalOut led3( LED3 );
+     * PinDetect pin( p30 );
+     *
+     * void myCallback( void ) {
+     *   led3 = 1;
+     * };
+     *
+     * main() {
+     *     pin.attach_deasserted_held( &myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted and held.
+     * @param function A C function pointer
+     */
+    void attach_deasserted_held(void (*function)(void)) {
+        _callbackDeassertedHeld.attach( function );
+    }
+    
+    /** Attach a callback object/method
+     *
+     * @code
+     *
+     * class Bar {
+     *   public:
+     *     void myCallback( void ) { led3 = 0; }
+     * };
+     *
+     * DigitalOut led3( LED3 );
+     * PinDetect pin( p30 );
+     * Bar bar;
+     * 
+     * main() {
+     *     pin.attach_deasserted_held( &bar, &Bar::myCallback );
+     * }
+     *
+     * @endcode
+     *
+     * Call this function when a pin is deasserted and held.
+     * @param object An object that conatins the callback method.
+     * @param method The method within the object to call.
+     */
+    template<typename T>
+    void attach_deasserted_held(T *object, void (T::*member)(void)) {
+        _callbackDeassertedHeld.attach( object, member );        
+    }
+    
+    /** operator int()
+     *
+     * Read the value of the pin being sampled.
+     */
+    operator int() { return _in->read(); }
+
+protected:    
+    /** The Ticker periodic callback function
+     */
+    void isr(void) {
+        int currentState = _in->read();
+    
+        if ( currentState != _prevState ) {
+            if ( _samplesTillAssert == 0 ) {
+                _prevState = currentState;
+                _samplesTillHeld = _samplesTillHeldReload;
+                if ( currentState == _assertValue ) 
+                    _callbackAsserted.call();
+                else                              
+                    _callbackDeasserted.call();
+            }
+            else {
+                _samplesTillAssert--;
+            }
+        }
+        else {
+            _samplesTillAssert = _samplesTillAssertReload;
+        }
+        
+        if ( _samplesTillHeld ) {
+            if ( _prevState == currentState ) {
+                _samplesTillHeld--;
+                if ( _samplesTillHeld == 0 ) {
+                    if ( currentState == _assertValue ) 
+                        _callbackAssertedHeld.call();
+                    else                              
+                        _callbackDeassertedHeld.call();
+                }
+            }
+            else {
+                _samplesTillHeld = 0;
+            }
+        }
+    }
+    
+};
+
+}; // namespace AjK ends.
+
+using namespace AjK;
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinDetect.lib	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/AjK/code/PinDetect/#cb3afc45028b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,100 @@
+/**
+
+Programmer: Andrew Shi
+Title: Lab 4 - Farkle Game
+Date: October 11 2021
+Description: Main function
+
+**/
+#include "Die.h"
+#include "FarkleGame.h"
+#include "PinDetect.h"
+
+#include "mbed.h"
+#include <time.h>
+
+using namespace std;
+
+Serial pc(USBTX,USBRX);
+
+PinDetect A(p21);
+PinDetect B(p22);
+PinDetect C(p23);
+
+int main(){
+    
+    //clear system
+    system("clear");
+    
+    //declare buttons
+    A.mode(PullUp);
+    B.mode(PullUp);
+    C.mode(PullUp); //unused
+    
+    //declare uLCD screen
+    uLCD_4DGL uLCD(p9,p10,p11);
+    uLCD.cls();
+    uLCD.display_control(PORTRAIT);
+    
+    //declare accelerometer
+    MMA8452 acc(p28, p27, 40000);
+    acc.setBitDepth(MMA8452::BIT_DEPTH_12);
+    acc.setDynamicRange(MMA8452::DYNAMIC_RANGE_4G);
+    acc.setDataRate(MMA8452::RATE_100);
+    
+    //declare dice number
+    int numDice = 6;
+    
+    //initialize FarkleGame object
+    FarkleGame game;
+    
+    game.scrnWipe(uLCD);
+    
+    //begin game
+    while(1){
+        //display intro and initialize values
+        game.dispIntro(uLCD, numDice);
+        game.init();
+        
+        //check for roll, adjust number of Dice
+        while(!game.checkRoll(acc)){   
+            if(!B){
+                numDice = (numDice+1)%7;
+                game.dispIntro(uLCD,numDice);
+            }        
+        }
+        
+        //roll dice when accelerometer is sensed, until A is clicked
+        while(A){
+            if(game.checkRoll(acc)){
+                //roll dice and displar
+                game.rollDice();
+                game.displayDice(uLCD, numDice);
+                
+                //update scores
+                game.loadVals(numDice);
+                game.updateScores();
+                
+                //display screens based on scores
+                if(game.calcScore() == 0){
+                    game.dispFarkle(uLCD);
+                    wait(3);
+                    break;
+                }
+                else{
+                    game.dispScore(uLCD);
+                }
+            }
+        }
+        
+        //display turn end screen
+        game.dispTurn(uLCD);
+        //wait for button to be pressed
+        while(A){
+        }
+        //reset numDice
+        numDice = 6;
+    }
+
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Oct 22 03:57:47 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file