Garren Boggs
Simple implementation of Guitar Hero with mbed.
Dependencies: 4DGL-uLCD-SE MCP23S17 SDFileSystem mbed-rtos mbed wave_player
Revision 0:58d424fe40b9, committed 2016-03-14
- Comitter:
- gboggs3
- Date:
- Mon Mar 14 17:59:32 2016 +0000
- Commit message:
- Original working version that received checkoff. 3/14/2016
Changed in this revision
diff -r 000000000000 -r 58d424fe40b9 4DGL-uLCD-SE.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/4DGL-uLCD-SE.lib Mon Mar 14 17:59:32 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/gboggs3/code/4DGL-uLCD-SE/#2e9823adbfd8
diff -r 000000000000 -r 58d424fe40b9 MCP23S17.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MCP23S17.lib Mon Mar 14 17:59:32 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/romilly/code/MCP23S17/#068b1e8909bb
diff -r 000000000000 -r 58d424fe40b9 SDFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Mon Mar 14 17:59:32 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/neilt6/code/SDFileSystem/#3fa5eaf48e81
diff -r 000000000000 -r 58d424fe40b9 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Mar 14 17:59:32 2016 +0000
@@ -0,0 +1,533 @@
+/*===================================================================
+--------------------- Guitar Hero mbed Program ----------------------
+
+This program recreates the classic Guitar Hero game using the mbed
+processor, along with various other peripherals, such as capacitive
+touch sensors, an IR sensor, and a uLCD display.
+
+Written for:
+ Georgia Institute of Technology
+ ECE 4180, Lab 4, Section B
+ Dr. James Hamblen
+
+Authors:
+ Garren Boggs
+ Anthony Jones
+===================================================================*/
+
+#include "mbed.h"
+#include "rtos.h" //For threading
+#include "uLCD_4DGL.h" //Display
+#include "SDFileSystem.h" //SD card functionality
+#include "wave_player.h" //For playing music
+#include "MCP23S17.h" //Serial PC for debugging
+#include <mpr121.h> //Capacitive touch sensors
+#include <stdlib.h>
+#include <time.h>
+
+#define NOTE_START 24
+#define NOTE_HEIGHT 9
+#define NOTE_WIDTH 27
+#define MISS 128
+#define SPEED 3
+#define HIT_TOP 98
+#define HIT_BOT 125
+#define VICTORY_THRESHOLD 50
+
+bool paused = false; //If paused, stop gameplay and show on screen
+bool gameOver = false; //Occurs if HP reaches zero
+bool victory = false;
+bool resetDisplay = false; //After resetting game or unpausing
+
+bool gHit = false;
+bool rHit = false;
+bool yHit = false;
+bool bHit = false;
+
+int hp = 260; //Hitpoint count
+int score = 0; //Score count
+int combo = 0; //Combo count
+int notesCreated = 0; //Victory after threshold
+
+/* Note locations. The values are the x and y positions respectively.
+ A value of -1 for these coordinates indicates that the specific
+ note is currently not on the screen. */
+int gNote[2]= {0,-1}; //Current GREEN note location.
+int rNote[2]= {NOTE_WIDTH+1,-1}; //Current RED note location.
+int yNote[2]= {2*NOTE_WIDTH+2,-1}; //Current YELLOW note location.
+int bNote[2]= {3*NOTE_WIDTH+3,-1}; //Current BLUE note location.
+
+//-------------------------------------------------------------------
+/* Instantiates the capacitive touch sensors. These will be used for
+ determining which notes have been pressed by the user. */
+
+/* Setup the i2c bus on pins 9 and 10 */
+ I2C i2c(p9, p10);
+
+/* Setup the Mpr121: */
+ Mpr121 notes(&i2c, Mpr121::ADD_VSS);
+//-------------------------------------------------------------------
+
+//-------------------------------------------------------------------
+/* Create an interrupt receiver to detect when the user has
+ strummed. */
+ InterruptIn interruptStrum(p26);
+//-------------------------------------------------------------------
+
+//-------------------------------------------------------------------
+/* Initialize SD Card Reader to import song to be played during the
+ game. */
+ SDFileSystem sd(p5, p6, p7, p8, "sd");
+
+/* Initializes the wave player to actually play the song. */
+ AnalogOut DACout (p18);
+ wave_player player(&DACout);
+//-------------------------------------------------------------------
+
+//-------------------------------------------------------------------
+/* Initializes the uLCD display as a UI for the game */
+ uLCD_4DGL uLCD(p28,p27,p30);
+
+/* Create an interrupt to allow the user to pause the game, this
+ freezing the game UI. */
+ InterruptIn interruptPause(p16);
+//-------------------------------------------------------------------
+
+//-------------------------------------------------------------------
+/* Initialize the mbed LEDs for testing and debugging purposes. */
+ DigitalOut led1(LED1);
+ DigitalOut led2(LED2);
+ DigitalOut led3(LED3);
+ DigitalOut led4(LED4);
+
+/* Setup the Serial to the PC for debugging */
+ Serial pc(USBTX, USBRX);
+ DigitalIn test(p24);
+//-------------------------------------------------------------------
+
+/*
+* Detects when the user has strum in order to play a note. This occurs
+* when the user waves a hand close to the IR sensor. If close enough,
+* the defined threshold will be passes and registered as a strum.
+*/
+void strumInterrupt()
+{
+ //For resetting a game
+ if(gameOver || victory)
+ {
+ gNote[1] = -1;
+ rNote[1] = -1;
+ yNote[1] = -1;
+ bNote[1] = -1;
+ notesCreated = 0;
+ score = 0;
+ combo = 0;
+ hp = 260;
+
+ gHit = false;
+ rHit = false;
+ yHit = false;
+ bHit = false;
+
+ resetDisplay = true;
+ paused = false;
+ gameOver = false;
+ victory = false;
+ return;
+ }
+
+ //Read values of selected notes off of capacitive touch sensor
+ int value = notes.read(0x00);
+ value += notes.read(0x01)<<8;
+
+ //Determine if a note or combination of notes is being pressed
+ if((value == 1 || value == 3 || value == 5 || value == 7 || value == 9 || value == 11 || value == 13 || value == 15) &&
+ gNote[1] < HIT_BOT && gNote[1] > HIT_TOP)
+ gHit = true;
+ if((value == 2 || value == 3 || value == 6 || value == 7 || value == 10 || value == 11 || value == 14 || value == 15) &&
+ rNote[1] < HIT_BOT && rNote[1] > HIT_TOP)
+ rHit = true;
+ if((value == 4 || value == 5 || value == 6 || value == 7 || value == 12 || value == 13 || value == 14 || value == 15) &&
+ yNote[1] < HIT_BOT && yNote[1] > HIT_TOP)
+ yHit = true;
+ if((value == 8 || value == 9 || value == 10 || value == 11 || value == 12 || value == 13 || value == 14 || value == 15) &&
+ bNote[1] < HIT_BOT && bNote[1] > HIT_TOP)
+ bHit = true;
+
+}
+
+/*
+* Updates the game display's life bar counter. If life bar drops below zero,
+* game ends.
+*/
+void updateLifeBar()
+{
+ int i;
+ int offset = 0;
+
+ //Creates life bars on the game UI for the user to know how well they are doing.
+ //If the user loses HP, the bars will decrease, and as the user repleneshes their
+ //HP, the bars will begin to rise.
+ for(i = 0; i < 8; i++)
+ {
+ if(hp < (260 - i*10))
+ uLCD.filled_rectangle(4*NOTE_WIDTH+6,3*i+offset,124,3*(i+1)+offset,BLACK);
+ else
+ uLCD.filled_rectangle(4*NOTE_WIDTH+6,3*i+offset,124,3*(i+1)+offset,GREEN);
+ offset += 2;
+ }
+ for(i = 8; i < 19; i++)
+ {
+ if(hp < (260 - i*10))
+ uLCD.filled_rectangle(4*NOTE_WIDTH+6,3*i+offset,124,3*(i+1)+offset,BLACK);
+ else
+ uLCD.filled_rectangle(4*NOTE_WIDTH+6,3*i+offset,124,3*(i+1)+offset,YELLOW);
+ offset += 2;
+ }
+ for(i = 19; i < 26; i++)
+ {
+ if(hp < (260 - i*10))
+ uLCD.filled_rectangle(4*NOTE_WIDTH+6,3*i+offset,124,3*(i+1)+offset,BLACK);
+ else
+ uLCD.filled_rectangle(4*NOTE_WIDTH+6,3*i+offset,124,3*(i+1)+offset,RED);
+ offset += 2;
+ }
+}
+
+/*
+* Initializes the game UI with the predefined background. There are
+* four specific notes the user can play, and thus there will be four
+* distinct lanes that are drawn initially.
+*/
+void setupDisplay()
+{
+ //Background display
+ uLCD.cls();
+ uLCD.background_color(BLACK);
+ uLCD.line(NOTE_WIDTH,NOTE_START-4,NOTE_WIDTH,127,WHITE);
+ uLCD.line(2*NOTE_WIDTH+1,NOTE_START-4,2*NOTE_WIDTH+1,127,WHITE);
+ uLCD.line(3*NOTE_WIDTH+2,NOTE_START-4,3*NOTE_WIDTH+2,127,WHITE);
+ uLCD.filled_rectangle(4*NOTE_WIDTH+3,0,4*NOTE_WIDTH+4,127,WHITE);
+ uLCD.filled_rectangle(126,0,127,127,WHITE);
+ uLCD.line(0,NOTE_START-4,4*NOTE_WIDTH+3,NOTE_START-4,WHITE);
+ uLCD.rectangle(0,127-(NOTE_HEIGHT+2),NOTE_WIDTH-1,127,GREEN);
+ uLCD.rectangle(NOTE_WIDTH+1,127-(NOTE_HEIGHT+2),2*NOTE_WIDTH,127,RED);
+ uLCD.rectangle(2*NOTE_WIDTH+2,127-(NOTE_HEIGHT+2),3*NOTE_WIDTH+1,127,YELLOW);
+ uLCD.rectangle(3*NOTE_WIDTH+3,127-(NOTE_HEIGHT+2),4*NOTE_WIDTH+2,127,BLUE);
+
+ //Scoreboard
+ uLCD.printf("SCORE: %d\nCOMBO: %d",score,combo);
+
+ //Initialize life bar
+ updateLifeBar();
+}
+
+/*
+* Calculates the dimensions for a specific note, based on its
+* current position.
+*/
+void calculateNoteDims(int pos[], int dims[])
+{
+ //If currently not on screen, do nothing.
+ if(pos[1] < 0 || pos[1] > MISS)
+ {
+ dims[0] = 0;
+ dims[1] = 0;
+ dims[2] = 0;
+ dims[3] = 0;
+ return;
+ }
+
+ //Otherwise calculate dimensions
+ dims[0] = pos[0]; //x-left dimension
+ dims[2] = pos[0] + NOTE_WIDTH - 1; //x-right dimension
+
+ dims[1] = (pos[1] - (NOTE_HEIGHT - 1)) > 0 ? pos[1] : 0; //y-bottom dimension
+ dims[3] = (pos[1] - (NOTE_HEIGHT - 1)) > 0 ? dims[1] + (NOTE_HEIGHT - 1) : pos[1]; //y-top dimension
+
+ return;
+}
+
+/*
+* Pauses the game.
+*/
+void pauseGame()
+{
+ if(paused)
+ {
+ resetDisplay = true;
+ }
+ paused = !paused;
+ wait(0.2);
+}
+
+/*
+* The game loop. This continuously updates the display with the notes, and
+* acts accordingly if the user has strum, and a note has been hit. If the
+* game is paused, the notes will cease movement, and a text displaying so
+* will appear on the screen.
+*/
+void playGame(void const *args)
+{
+ int gDims[4];
+ int rDims[4];
+ int yDims[4];
+ int bDims[4];
+
+ while(1)
+ {
+ if(!gameOver && !victory && !paused)
+ {
+ //Resets display if game has been reset or unpaused
+ if(resetDisplay)
+ {
+ resetDisplay = false;
+ setupDisplay();
+ }
+
+ //Update life points
+ updateLifeBar();
+
+ //Calculate respective positions and draw accordingly if notes
+ //are going on or off screen.
+ calculateNoteDims(gNote, gDims);
+ calculateNoteDims(rNote, rDims);
+ calculateNoteDims(yNote, yDims);
+ calculateNoteDims(bNote, bDims);
+
+ //Draw the notes and erase old positions
+ if(gNote[1] >= 0 && gNote[1] < MISS)
+ {
+ if(gHit)
+ {
+ gHit = false;
+ uLCD.filled_rectangle(gNote[0],gNote[1]-SPEED,gNote[0]+NOTE_WIDTH-1,gNote[1]-1,BLACK);
+ uLCD.filled_rectangle(gDims[0],gDims[1],gDims[2],gDims[3],BLACK);
+ gNote[1] = -1;
+ score += 30;
+ combo++;
+ hp = (hp + (combo >= 10 ? 10 : combo)) >= 260 ? 260 : (hp + (combo >= 10 ? 10 : combo));
+ }
+ else
+ {
+ uLCD.filled_rectangle(gNote[0],gNote[1]-SPEED,gNote[0]+NOTE_WIDTH-1,gNote[1]-1,BLACK);
+ uLCD.filled_rectangle(gDims[0],gDims[1],gDims[2],gDims[3],GREEN);
+ }
+ }
+
+ if(rNote[1] >= 0 && rNote[1] < MISS)
+ {
+ if(rHit)
+ {
+ rHit = false;
+ uLCD.filled_rectangle(rNote[0],rNote[1]-SPEED,rNote[0]+NOTE_WIDTH-1,rNote[1]-1,BLACK);
+ uLCD.filled_rectangle(rDims[0],rDims[1],rDims[2],rDims[3],BLACK);
+ rNote[1] = -1;
+ score += 30;
+ combo++;
+ hp = (hp + (combo >= 10 ? 10 : combo)) >= 260 ? 260 : (hp + (combo >= 10 ? 10 : combo));
+ }
+ else
+ {
+ uLCD.filled_rectangle(rNote[0],rNote[1]-SPEED,rNote[0]+NOTE_WIDTH-1,rNote[1]-1,BLACK);
+ uLCD.filled_rectangle(rDims[0],rDims[1],rDims[2],rDims[3],RED);
+ }
+ }
+
+ if(yNote[1] >= 0 && yNote[1] < MISS)
+ {
+ if(yHit)
+ {
+ yHit = false;
+ uLCD.filled_rectangle(yNote[0],yNote[1]-SPEED,yNote[0]+NOTE_WIDTH-1,yNote[1]-1,BLACK);
+ uLCD.filled_rectangle(yDims[0],yDims[1],yDims[2],yDims[3],BLACK);
+ yNote[1] = -1;
+ score += 30;
+ combo++;
+ hp = (hp + (combo >= 10 ? 10 : combo)) >= 260 ? 260 : (hp + (combo >= 10 ? 10 : combo));
+ }
+ else
+ {
+ uLCD.filled_rectangle(yNote[0],yNote[1]-SPEED,yNote[0]+NOTE_WIDTH-1,yNote[1]-1,BLACK);
+ uLCD.filled_rectangle(yDims[0],yDims[1],yDims[2],yDims[3],YELLOW);
+ }
+ }
+
+ if(bNote[1] >= 0 && bNote[1] < MISS)
+ {
+ if(bHit)
+ {
+ bHit = false;
+ uLCD.filled_rectangle(bNote[0],bNote[1]-SPEED,bNote[0]+NOTE_WIDTH-1,bNote[1]-1,BLACK);
+ uLCD.filled_rectangle(bDims[0],bDims[1],bDims[2],bDims[3],BLACK);
+ bNote[1] = -1;
+ score += 30;
+ combo++;
+ hp = (hp + (combo >= 10 ? 10 : combo)) >= 260 ? 260 : (hp + (combo >= 10 ? 10 : combo));
+ }
+ else
+ {
+ uLCD.filled_rectangle(bNote[0],bNote[1]-SPEED,bNote[0]+NOTE_WIDTH-1,bNote[1]-1,BLACK);
+ uLCD.filled_rectangle(bDims[0],bDims[1],bDims[2],bDims[3],BLUE);
+ }
+
+ }
+
+ //Redraw target boxes at bottom of screen, incase notes are drawn over them
+ uLCD.rectangle(0,127-(NOTE_HEIGHT+2),NOTE_WIDTH-1,127,GREEN);
+ uLCD.rectangle(NOTE_WIDTH+1,127-(NOTE_HEIGHT+2),2*NOTE_WIDTH,127,RED);
+ uLCD.rectangle(2*NOTE_WIDTH+2,127-(NOTE_HEIGHT+2),3*NOTE_WIDTH+1,127,YELLOW);
+ uLCD.rectangle(3*NOTE_WIDTH+3,127-(NOTE_HEIGHT+2),4*NOTE_WIDTH+2,127,BLUE);
+
+ //Check if each note is still on the screen. If it is, increment the position
+ gNote[1] = gNote[1] < 0 ? (rand()%100 > 95 ? NOTE_START : -2) : gNote[1] >= MISS ? -1 : (gNote[1] + SPEED);
+ if(gNote[1] == -1)
+ {
+ hp -= 10;
+ combo = 0;
+ }
+ if(gNote[1] == NOTE_START)
+ {
+ notesCreated++;
+ }
+
+ rNote[1] = rNote[1] < 0 ? (rand()%100 > 95 ? NOTE_START : -2) : rNote[1] >= MISS ? -1 : (rNote[1] + SPEED);
+ if(rNote[1] == -1)
+ {
+ hp -= 10;
+ combo = 0;
+ }
+ if(rNote[1] == NOTE_START)
+ {
+ notesCreated++;
+ }
+
+ yNote[1] = yNote[1] < 0 ? (rand()%100 > 95 ? NOTE_START : -2) : yNote[1] >= MISS ? -1 : (yNote[1] + SPEED);
+ if(yNote[1] == -1)
+ {
+ hp -= 10;
+ combo = 0;
+ }
+ if(yNote[1] == NOTE_START)
+ {
+ notesCreated++;
+ }
+
+ bNote[1] = bNote[1] < 0 ? (rand()%100 > 95 ? NOTE_START : -2) : bNote[1] >= MISS ? -1 : (bNote[1] + SPEED);
+ if(bNote[1] == -1)
+ {
+ hp -= 10;
+ combo = 0;
+ }
+ if(bNote[1] == NOTE_START)
+ {
+ notesCreated++;
+ }
+
+ //Check to make sure HP is above zero, otherwise, Game Over.
+ if(hp <= 0)
+ gameOver = true;
+
+ //Check to see if user has won.
+ if(notesCreated >= VICTORY_THRESHOLD)
+ victory = true;
+
+ uLCD.locate(0,0);
+ uLCD.printf("SCORE: %d\nCOMBO: %d",score,combo);
+ }
+ else if(gameOver)
+ {
+ //Sets up the display for a game over.
+ uLCD.cls();
+ uLCD.background_color(BLACK);
+ uLCD.text_width(2);
+ uLCD.text_height(2);
+ uLCD.locate(0,0);
+ uLCD.printf("\n\nGAME OVER");
+ uLCD.locate(0,6);
+ uLCD.text_width(1.5);
+ uLCD.text_height(1.5);
+ uLCD.printf("\n\r Score: %d\n\r Combo: %d",score,combo);
+ uLCD.text_width(1);
+ uLCD.text_height(1);
+ uLCD.locate(0,11);
+ uLCD.printf("\n\r Strum to reset");
+ uLCD.locate(0,0);
+ while(gameOver)
+ {
+ wait(0.1);
+ }
+ }
+ else if(victory)
+ {
+ //Sets up the display for a victory.
+ uLCD.cls();
+ uLCD.background_color(BLACK);
+ uLCD.text_width(2);
+ uLCD.text_height(2);
+ uLCD.locate(0,0);
+ uLCD.printf("\n\nYOU ROCK!");
+ uLCD.locate(0,6);
+ uLCD.text_width(1.5);
+ uLCD.text_height(1.5);
+ uLCD.printf("\n\r Score: %d\n\r Combo: %d",score,combo);
+ uLCD.text_width(1);
+ uLCD.text_height(1);
+ uLCD.locate(0,11);
+ uLCD.printf("\n\r Strum to reset");
+ uLCD.locate(0,0);
+ while(victory)
+ {
+ wait(0.1);
+ }
+ }
+ else
+ {
+ //Sets up the display for a paused game.
+ uLCD.cls();
+ uLCD.background_color(BLACK);
+ uLCD.text_width(2);
+ uLCD.text_height(2);
+ uLCD.locate(0,0);
+ uLCD.printf("\n\n\n PAUSED!");
+ uLCD.text_width(1);
+ uLCD.text_height(1);
+ uLCD.locate(0,0);
+ while(paused)
+ {
+ wait(0.1);
+ }
+ }
+ }
+}
+
+int main()
+{
+ //Intialize display to show game UI
+ setupDisplay();
+
+ //Initialize the strum interrupt to act on a rising edge
+ interruptStrum.rise(&strumInterrupt);
+
+ //Initialize the pause interrupt
+ interruptPause.rise(&pauseGame);
+
+ //Initialize game loop
+ Thread gl(playGame);
+
+ //Play the song
+ FILE *fp = fopen("/sd/sound/smoke_on_the_water.wav", "r");
+ if(fp == NULL)
+ {
+ pc.printf("SD Card could not be read!");
+ }
+ else
+ {
+ // player.play(fp);
+ fclose(fp);
+ }
+
+ //Tasks for main loop (mainly debugging)
+ while(1)
+ { }
+}
diff -r 000000000000 -r 58d424fe40b9 mbed-rtos.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Mon Mar 14 17:59:32 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#dfc27975e193
diff -r 000000000000 -r 58d424fe40b9 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Mar 14 17:59:32 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/f141b2784e32 \ No newline at end of file
diff -r 000000000000 -r 58d424fe40b9 mpr121.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mpr121.cpp Mon Mar 14 17:59:32 2016 +0000
@@ -0,0 +1,221 @@
+/*
+Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
+
+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 <mbed.h>
+#include <sstream>
+#include <string>
+#include <list>
+
+#include <mpr121.h>
+
+Mpr121::Mpr121(I2C *i2c, Address i2cAddress)
+{
+ this->i2c = i2c;
+
+ address = i2cAddress;
+
+ // Configure the MPR121 settings to default
+ this->configureSettings();
+}
+
+
+void Mpr121::configureSettings()
+{
+ // Put the MPR into setup mode
+ this->write(ELE_CFG,0x00);
+
+ // Electrode filters for when data is > baseline
+ unsigned char gtBaseline[] = {
+ 0x01, //MHD_R
+ 0x01, //NHD_R
+ 0x00, //NCL_R
+ 0x00 //FDL_R
+ };
+
+ writeMany(MHD_R,gtBaseline,4);
+
+ // Electrode filters for when data is < baseline
+ unsigned char ltBaseline[] = {
+ 0x01, //MHD_F
+ 0x01, //NHD_F
+ 0xFF, //NCL_F
+ 0x02 //FDL_F
+ };
+
+ writeMany(MHD_F,ltBaseline,4);
+
+ // Electrode touch and release thresholds
+ unsigned char electrodeThresholds[] = {
+ E_THR_T, // Touch Threshhold
+ E_THR_R // Release Threshold
+ };
+
+ for(int i=0; i<12; i++){
+ int result = writeMany((ELE0_T+(i*2)),electrodeThresholds,2);
+ }
+
+ // Proximity Settings
+ unsigned char proximitySettings[] = {
+ 0xff, //MHD_Prox_R
+ 0xff, //NHD_Prox_R
+ 0x00, //NCL_Prox_R
+ 0x00, //FDL_Prox_R
+ 0x01, //MHD_Prox_F
+ 0x01, //NHD_Prox_F
+ 0xFF, //NCL_Prox_F
+ 0xff, //FDL_Prox_F
+ 0x00, //NHD_Prox_T
+ 0x00, //NCL_Prox_T
+ 0x00 //NFD_Prox_T
+ };
+ writeMany(MHDPROXR,proximitySettings,11);
+
+ unsigned char proxThresh[] = {
+ PROX_THR_T, // Touch Threshold
+ PROX_THR_R // Release Threshold
+ };
+ writeMany(EPROXTTH,proxThresh,2);
+
+ this->write(FIL_CFG,0x04);
+
+ // Set the electrode config to transition to active mode
+ this->write(ELE_CFG,0x0c);
+}
+
+void Mpr121::setElectrodeThreshold(int electrode, unsigned char touch, unsigned char release){
+
+ if(electrode > 11) return;
+
+ // Get the current mode
+ unsigned char mode = this->read(ELE_CFG);
+
+ // Put the MPR into setup mode
+ this->write(ELE_CFG,0x00);
+
+ // Write the new threshold
+ this->write((ELE0_T+(electrode*2)), touch);
+ this->write((ELE0_T+(electrode*2)+1), release);
+
+ //Restore the operating mode
+ this->write(ELE_CFG, mode);
+}
+
+
+unsigned char Mpr121::read(int key){
+
+ unsigned char data[2];
+
+ //Start the command
+ i2c->start();
+
+ // Address the target (Write mode)
+ int ack1= i2c->write(address);
+
+ // Set the register key to read
+ int ack2 = i2c->write(key);
+
+ // Re-start for read of data
+ i2c->start();
+
+ // Re-send the target address in read mode
+ int ack3 = i2c->write(address+1);
+
+ // Read in the result
+ data[0] = i2c->read(0);
+
+ // Reset the bus
+ i2c->stop();
+
+ return data[0];
+}
+
+
+int Mpr121::write(int key, unsigned char value){
+
+ //Start the command
+ i2c->start();
+
+ // Address the target (Write mode)
+ int ack1= i2c->write(address);
+
+ // Set the register key to write
+ int ack2 = i2c->write(key);
+
+ // Read in the result
+ int ack3 = i2c->write(value);
+
+ // Reset the bus
+ i2c->stop();
+
+ return (ack1+ack2+ack3)-3;
+}
+
+
+int Mpr121::writeMany(int start, unsigned char* dataSet, int length){
+ //Start the command
+ i2c->start();
+
+ // Address the target (Write mode)
+ int ack= i2c->write(address);
+ if(ack!=1){
+ return -1;
+ }
+
+ // Set the register key to write
+ ack = i2c->write(start);
+ if(ack!=1){
+ return -1;
+ }
+
+ // Write the date set
+ int count = 0;
+ while(ack==1 && (count < length)){
+ ack = i2c->write(dataSet[count]);
+ count++;
+ }
+ // Stop the cmd
+ i2c->stop();
+
+ return count;
+}
+
+
+bool Mpr121::getProximityMode(){
+ if(this->read(ELE_CFG) > 0x0c)
+ return true;
+ else
+ return false;
+}
+
+void Mpr121::setProximityMode(bool mode){
+ this->write(ELE_CFG,0x00);
+ if(mode){
+ this->write(ELE_CFG,0x30); //Sense proximity from ALL pads
+ } else {
+ this->write(ELE_CFG,0x0c); //Sense touch, all 12 pads active.
+ }
+}
+
+
+int Mpr121::readTouchData(){
+ return this->read(0x00);
+}
\ No newline at end of file
diff -r 000000000000 -r 58d424fe40b9 mpr121.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mpr121.h Mon Mar 14 17:59:32 2016 +0000
@@ -0,0 +1,157 @@
+/*
+Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
+
+
+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.
+
+ Parts written by Jim Lindblom of Sparkfun
+ Ported to mbed by A.Buckton, Feb 2011
+*/
+
+#ifndef MPR121_H
+#define MPR121_H
+
+//using namespace std;
+
+class Mpr121
+{
+
+public:
+ // i2c Addresses, bit-shifted
+ enum Address { ADD_VSS = 0xb4,// ADD->VSS = 0x5a <-wiring on Sparkfun board
+ ADD_VDD = 0xb6,// ADD->VDD = 0x5b
+ ADD_SCL = 0xb8,// ADD->SDA = 0x5c
+ ADD_SDA = 0xba // ADD->SCL = 0x5d
+ };
+
+ // Real initialiser, takes the i2c address of the device.
+ Mpr121(I2C *i2c, Address i2cAddress);
+
+ bool getProximityMode();
+
+ void setProximityMode(bool mode);
+
+ int readTouchData();
+
+ unsigned char read(int key);
+
+ int write(int address, unsigned char value);
+ int writeMany(int start, unsigned char* dataSet, int length);
+
+ void setElectrodeThreshold(int electrodeId, unsigned char touchThreshold, unsigned char releaseThreshold);
+
+protected:
+ // Configures the MPR with standard settings. This is permitted to be overwritten by sub-classes.
+ void configureSettings();
+
+private:
+ // The I2C bus instance.
+ I2C *i2c;
+
+ // i2c address of this mpr121
+ Address address;
+};
+
+
+// MPR121 Register Defines
+#define MHD_R 0x2B
+#define NHD_R 0x2C
+#define NCL_R 0x2D
+#define FDL_R 0x2E
+#define MHD_F 0x2F
+#define NHD_F 0x30
+#define NCL_F 0x31
+#define FDL_F 0x32
+#define NHDT 0x33
+#define NCLT 0x34
+#define FDLT 0x35
+// Proximity sensing controls
+#define MHDPROXR 0x36
+#define NHDPROXR 0x37
+#define NCLPROXR 0x38
+#define FDLPROXR 0x39
+#define MHDPROXF 0x3A
+#define NHDPROXF 0x3B
+#define NCLPROXF 0x3C
+#define FDLPROXF 0x3D
+#define NHDPROXT 0x3E
+#define NCLPROXT 0x3F
+#define FDLPROXT 0x40
+// Electrode Touch/Release thresholds
+#define ELE0_T 0x41
+#define ELE0_R 0x42
+#define ELE1_T 0x43
+#define ELE1_R 0x44
+#define ELE2_T 0x45
+#define ELE2_R 0x46
+#define ELE3_T 0x47
+#define ELE3_R 0x48
+#define ELE4_T 0x49
+#define ELE4_R 0x4A
+#define ELE5_T 0x4B
+#define ELE5_R 0x4C
+#define ELE6_T 0x4D
+#define ELE6_R 0x4E
+#define ELE7_T 0x4F
+#define ELE7_R 0x50
+#define ELE8_T 0x51
+#define ELE8_R 0x52
+#define ELE9_T 0x53
+#define ELE9_R 0x54
+#define ELE10_T 0x55
+#define ELE10_R 0x56
+#define ELE11_T 0x57
+#define ELE11_R 0x58
+// Proximity Touch/Release thresholds
+#define EPROXTTH 0x59
+#define EPROXRTH 0x5A
+// Debounce configuration
+#define DEB_CFG 0x5B
+// AFE- Analogue Front End configuration
+#define AFE_CFG 0x5C
+// Filter configuration
+#define FIL_CFG 0x5D
+// Electrode configuration - transistions to "active mode"
+#define ELE_CFG 0x5E
+
+#define GPIO_CTRL0 0x73
+#define GPIO_CTRL1 0x74
+#define GPIO_DATA 0x75
+#define GPIO_DIR 0x76
+#define GPIO_EN 0x77
+#define GPIO_SET 0x78
+#define GPIO_CLEAR 0x79
+#define GPIO_TOGGLE 0x7A
+// Auto configration registers
+#define AUTO_CFG_0 0x7B
+#define AUTO_CFG_U 0x7D
+#define AUTO_CFG_L 0x7E
+#define AUTO_CFG_T 0x7F
+
+// Threshold defaults
+// Electrode touch threshold
+#define E_THR_T 0x0F
+// Electrode release threshold
+#define E_THR_R 0x0A
+// Prox touch threshold
+#define PROX_THR_T 0x02
+// Prox release threshold
+#define PROX_THR_R 0x02
+
+#endif
diff -r 000000000000 -r 58d424fe40b9 wave_player.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wave_player.lib Mon Mar 14 17:59:32 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/sravet/code/wave_player/#acc3e18e77ad