AnnaLouise Martinez / Mbed 2 deprecated ACC_LCD_341_Basic_Final_ALM

ALM Final Project

Dependencies:   MMA8451Q SLCD_minus_mod mbed

Fork of ACC_LCD_341_Basic by Stanley Cohen

acc_341.cpp@6:328da59dfafc, 2016-11-28 (annotated)

Committer:
annalou
Date:
Mon Nov 28 01:29:12 2016 +0000
Revision:
6:328da59dfafc
Parent:
5:29c6ba524263 
ALM_FINAL

Who changed what in which revision?

UserRevisionLine numberNew contents of line
scohennm 0:203b4129a213 1 #include "mbed.h"
scohennm 3:c5291c70af48 2 #include <math.h>
scohennm 0:203b4129a213 3 #include "MMA8451Q.h"
scohennm 0:203b4129a213 4 #include "SLCD.h"
scohennm 0:203b4129a213 5
scohennm 0:203b4129a213 6 /*
scohennm 0:203b4129a213 7 Test of the accelerometer, digital I/O, on-board LCD screen.
scohennm 0:203b4129a213 8 Looing at vector product of the x-y components of the accelerometer.
scohennm 0:203b4129a213 9 Works pretty well. Still rough, program wise - sc 140710
scohennm 0:203b4129a213 10 */
scohennm 0:203b4129a213 11
annalou 6:328da59dfafc 12 #define DATAINTERVAL 0.150
scohennm 4:1d559bac561a 13 #define LCDDATALEN 10
annalou 6:328da59dfafc 14 #define LCDAXISLEN 3
scohennm 0:203b4129a213 15
scohennm 3:c5291c70af48 16 #define PROGNAME "ACCLCD341-541\r\n"
scohennm 0:203b4129a213 17
scohennm 0:203b4129a213 18 #define PRINTDBUG
scohennm 2:6003ed409def 19 //
scohennm 0:203b4129a213 20 #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
scohennm 2:6003ed409def 21 PinName const SDA = PTE25; // Data pins for the accelerometer/magnetometer.
scohennm 2:6003ed409def 22 PinName const SCL = PTE24; // DO NOT CHANGE
scohennm 0:203b4129a213 23 #elif defined (TARGET_KL05Z)
scohennm 0:203b4129a213 24 PinName const SDA = PTB4;
scohennm 0:203b4129a213 25 PinName const SCL = PTB3;
scohennm 0:203b4129a213 26 #else
scohennm 0:203b4129a213 27 #error TARGET NOT DEFINED
scohennm 0:203b4129a213 28 #endif
scohennm 0:203b4129a213 29
scohennm 0:203b4129a213 30 #define MMA8451_I2C_ADDRESS (0x1d<<1)
scohennm 0:203b4129a213 31
scohennm 0:203b4129a213 32 SLCD slcd; //define LCD display
scohennm 4:1d559bac561a 33 char lcdData[LCDDATALEN]; //buffer needs places dor decimal pt and colon
annalou 6:328da59dfafc 34 char lcdAxis[LCDAXISLEN];
scohennm 0:203b4129a213 35
scohennm 0:203b4129a213 36 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
scohennm 0:203b4129a213 37 Serial pc(USBTX, USBRX);
scohennm 3:c5291c70af48 38 Timer dataTimer;
scohennm 0:203b4129a213 39
scohennm 2:6003ed409def 40
scohennm 0:203b4129a213 41
scohennm 3:c5291c70af48 42 void LCDMess(char *lMess){
scohennm 0:203b4129a213 43 slcd.Home();
scohennm 0:203b4129a213 44 slcd.clear();
scohennm 0:203b4129a213 45 slcd.printf(lMess);
annalou 6:328da59dfafc 46
scohennm 0:203b4129a213 47 }
scohennm 4:1d559bac561a 48
annalou 6:328da59dfafc 49 void LCDsignedFloat(float theNumber, Timer dataTime, char axis){
scohennm 5:29c6ba524263 50 sprintf (lcdData," %3.2f",theNumber);
annalou 6:328da59dfafc 51 if ((dataTime < 0.150) && (axis == 'X'))
annalou 6:328da59dfafc 52 { sprintf (lcdAxis,"%c", axis);
annalou 6:328da59dfafc 53 if (theNumber < 0.0) sprintf (lcdData,"<%3.2f",fabs(theNumber));}
annalou 6:328da59dfafc 54 else if ((dataTime < 0.150) && (axis == 'Y')){
annalou 6:328da59dfafc 55 sprintf (lcdAxis,"%c", axis);
annalou 6:328da59dfafc 56 if (theNumber < 0.0) sprintf (lcdData,"<%3.2f",fabs(theNumber));}
annalou 6:328da59dfafc 57 else {sprintf (lcdAxis,"%c", axis);
annalou 6:328da59dfafc 58 if (theNumber < 0.0) sprintf (lcdData,"<%3.2f",fabs(theNumber));};
annalou 6:328da59dfafc 59
annalou 6:328da59dfafc 60
scohennm 4:1d559bac561a 61 LCDMess(lcdData);
scohennm 4:1d559bac561a 62 }
scohennm 4:1d559bac561a 63
scohennm 3:c5291c70af48 64 void initialize_global_vars(){
scohennm 3:c5291c70af48 65 pc.printf(PROGNAME);
scohennm 3:c5291c70af48 66 dataTimer.start();
scohennm 3:c5291c70af48 67 dataTimer.reset();
scohennm 3:c5291c70af48 68 }
scohennm 0:203b4129a213 69
scohennm 0:203b4129a213 70 int main() {
scohennm 0:203b4129a213 71 float xAcc;
scohennm 3:c5291c70af48 72 float yAcc;
scohennm 4:1d559bac561a 73 float zAcc;
scohennm 0:203b4129a213 74
scohennm 3:c5291c70af48 75 initialize_global_vars();
scohennm 0:203b4129a213 76 // main loop forever
scohennm 0:203b4129a213 77 while(true) {
annalou 6:328da59dfafc 78 if(dataTimer.read() > DATAINTERVAL){
scohennm 0:203b4129a213 79 //Get accelerometer data - tilt angles minus offset for zero mark.
scohennm 3:c5291c70af48 80 xAcc = acc.getAccX();
annalou 6:328da59dfafc 81 LCDsignedFloat(xAcc, dataTimer, 'X');
annalou 6:328da59dfafc 82 dataTimer.reset();
annalou 6:328da59dfafc 83 yAcc = acc.getAccY();
annalou 6:328da59dfafc 84 LCDsignedFloat(yAcc, dataTimer, 'Y');
annalou 6:328da59dfafc 85 dataTimer.reset();
scohennm 4:1d559bac561a 86 zAcc = acc.getAccZ();
annalou 6:328da59dfafc 87 LCDsignedFloat(zAcc, dataTimer, 'Z');
annalou 6:328da59dfafc 88 dataTimer.reset();
scohennm 0:203b4129a213 89
scohennm 0:203b4129a213 90 #ifdef PRINTDBUG
scohennm 1:9340a340e588 91 pc.printf("xAcc = %f\r\n", xAcc);
scohennm 1:9340a340e588 92 pc.printf("yAcc = %f\r\n", yAcc);
scohennm 4:1d559bac561a 93 pc.printf("zAcc = %f\r\n", zAcc);
scohennm 0:203b4129a213 94 #endif
scohennm 0:203b4129a213 95 // Wait then do the whole thing again.
scohennm 3:c5291c70af48 96 }
scohennm 0:203b4129a213 97 }
scohennm 0:203b4129a213 98 }