Kenneth Lujan / Mbed 2 deprecated KLUJA-SSD341-ACC_LCD_341_Basic

HW-15.1

Dependencies:   MMA8451Q SLCD_minus_mod mbed

Fork of ACC_LCD_341_Basic by Stanley Cohen

acc_341.cpp@6:f53933d232fc, 2016-11-28 (annotated)

Committer:
kennylujan42
Date:
Mon Nov 28 04:56:16 2016 +0000
Revision:
6:f53933d232fc
Parent:
5:29c6ba524263 
KLUJ-SSD341-HW15.1

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
scohennm 3:c5291c70af48 12 #define DATAINTERVAL 0.200
scohennm 4:1d559bac561a 13 #define LCDDATALEN 10
scohennm 0:203b4129a213 14
kennylujan42 6:f53933d232fc 15 #define LEDON false
kennylujan42 6:f53933d232fc 16 #define LEDOFF true
kennylujan42 6:f53933d232fc 17 #define BUTDOWN false
kennylujan42 6:f53933d232fc 18 #define BUTUP true
kennylujan42 6:f53933d232fc 19 #define NUMBUTS 2
kennylujan42 6:f53933d232fc 20 #define LBUT PTC12
kennylujan42 6:f53933d232fc 21 #define RBUT PTC3
kennylujan42 6:f53933d232fc 22 #define LRED "Y "
kennylujan42 6:f53933d232fc 23 #define LGREEN "X "
kennylujan42 6:f53933d232fc 24 #define PRED "Y\r\n"
kennylujan42 6:f53933d232fc 25 #define PGREEN "X\r\n"
kennylujan42 6:f53933d232fc 26 #define NUMMESS 2
kennylujan42 6:f53933d232fc 27
scohennm 3:c5291c70af48 28 #define PROGNAME "ACCLCD341-541\r\n"
scohennm 0:203b4129a213 29
scohennm 0:203b4129a213 30 #define PRINTDBUG
scohennm 2:6003ed409def 31 //
scohennm 0:203b4129a213 32 #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
scohennm 2:6003ed409def 33 PinName const SDA = PTE25; // Data pins for the accelerometer/magnetometer.
scohennm 2:6003ed409def 34 PinName const SCL = PTE24; // DO NOT CHANGE
scohennm 0:203b4129a213 35 #elif defined (TARGET_KL05Z)
scohennm 0:203b4129a213 36 PinName const SDA = PTB4;
scohennm 0:203b4129a213 37 PinName const SCL = PTB3;
scohennm 0:203b4129a213 38 #else
scohennm 0:203b4129a213 39 #error TARGET NOT DEFINED
scohennm 0:203b4129a213 40 #endif
scohennm 0:203b4129a213 41
scohennm 0:203b4129a213 42 #define MMA8451_I2C_ADDRESS (0x1d<<1)
scohennm 0:203b4129a213 43
scohennm 0:203b4129a213 44 SLCD slcd; //define LCD display
scohennm 4:1d559bac561a 45 char lcdData[LCDDATALEN]; //buffer needs places dor decimal pt and colon
scohennm 0:203b4129a213 46
kennylujan42 6:f53933d232fc 47 int ledState = LEDON;
kennylujan42 6:f53933d232fc 48 int buttonStates[NUMBUTS] = {BUTDOWN,BUTUP};
kennylujan42 6:f53933d232fc 49 DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};
kennylujan42 6:f53933d232fc 50 DigitalOut LEDs[NUMBUTS] = {LED_GREEN, LED_RED};
kennylujan42 6:f53933d232fc 51
scohennm 0:203b4129a213 52 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
scohennm 0:203b4129a213 53 Serial pc(USBTX, USBRX);
scohennm 3:c5291c70af48 54 Timer dataTimer;
scohennm 0:203b4129a213 55
scohennm 2:6003ed409def 56
scohennm 0:203b4129a213 57
scohennm 3:c5291c70af48 58 void LCDMess(char *lMess){
scohennm 0:203b4129a213 59 slcd.Home();
scohennm 0:203b4129a213 60 slcd.clear();
scohennm 0:203b4129a213 61 slcd.printf(lMess);
scohennm 0:203b4129a213 62 }
scohennm 4:1d559bac561a 63
scohennm 4:1d559bac561a 64 void LCDsignedFloat(float theNumber){
scohennm 5:29c6ba524263 65 sprintf (lcdData," %3.2f",theNumber);
scohennm 5:29c6ba524263 66 if (theNumber < 0.0) sprintf (lcdData,"<%3.2f",fabs(theNumber));
scohennm 4:1d559bac561a 67 LCDMess(lcdData);
scohennm 4:1d559bac561a 68 }
scohennm 4:1d559bac561a 69
scohennm 3:c5291c70af48 70 void initialize_global_vars(){
scohennm 3:c5291c70af48 71 pc.printf(PROGNAME);
scohennm 3:c5291c70af48 72 dataTimer.start();
scohennm 3:c5291c70af48 73 dataTimer.reset();
scohennm 3:c5291c70af48 74 }
scohennm 0:203b4129a213 75
scohennm 0:203b4129a213 76 int main() {
scohennm 0:203b4129a213 77 float xAcc;
scohennm 3:c5291c70af48 78 float yAcc;
scohennm 4:1d559bac561a 79 float zAcc;
kennylujan42 6:f53933d232fc 80 //--------------
kennylujan42 6:f53933d232fc 81 int i;
kennylujan42 6:f53933d232fc 82 int currentLED = 0;
kennylujan42 6:f53933d232fc 83 char rMess[NUMMESS][LCDDATALEN]={LGREEN, LRED};
kennylujan42 6:f53933d232fc 84 char pMess[NUMMESS][LCDDATALEN]={xAcc, yAcc};
kennylujan42 6:f53933d232fc 85
scohennm 3:c5291c70af48 86 initialize_global_vars();
scohennm 0:203b4129a213 87 // main loop forever
scohennm 0:203b4129a213 88 while(true) {
scohennm 3:c5291c70af48 89 if(dataTimer.read() > DATAINTERVAL){
scohennm 3:c5291c70af48 90 dataTimer.reset();
scohennm 0:203b4129a213 91 //Get accelerometer data - tilt angles minus offset for zero mark.
scohennm 3:c5291c70af48 92 xAcc = acc.getAccX();
scohennm 4:1d559bac561a 93 yAcc = acc.getAccY();
scohennm 4:1d559bac561a 94 zAcc = acc.getAccZ();
scohennm 0:203b4129a213 95
kennylujan42 6:f53933d232fc 96
kennylujan42 6:f53933d232fc 97
kennylujan42 6:f53933d232fc 98 while(true) {
kennylujan42 6:f53933d232fc 99 for (i=0; i<NUMBUTS; i++){ // index will be 0 or 1
kennylujan42 6:f53933d232fc 100 LEDs[i] = LEDOFF;
kennylujan42 6:f53933d232fc 101 // if(buttons[i] == BUTDOWN) {
kennylujan42 6:f53933d232fc 102 if(!buttons[0]) {
kennylujan42 6:f53933d232fc 103 LCDMess(rMess[0]);
kennylujan42 6:f53933d232fc 104 wait(0.5);
kennylujan42 6:f53933d232fc 105 //LCDMess(pMess[i]);
kennylujan42 6:f53933d232fc 106 xAcc = acc.getAccX();
kennylujan42 6:f53933d232fc 107 LCDsignedFloat(xAcc);
kennylujan42 6:f53933d232fc 108 currentLED = 0;
kennylujan42 6:f53933d232fc 109 }
kennylujan42 6:f53933d232fc 110 if(!buttons[1]) {
kennylujan42 6:f53933d232fc 111 LCDMess(rMess[1]);
kennylujan42 6:f53933d232fc 112 wait(0.5);
kennylujan42 6:f53933d232fc 113 yAcc = acc.getAccY();
kennylujan42 6:f53933d232fc 114 LCDsignedFloat(yAcc);
kennylujan42 6:f53933d232fc 115 currentLED = 1;
kennylujan42 6:f53933d232fc 116 }
kennylujan42 6:f53933d232fc 117 }
kennylujan42 6:f53933d232fc 118
kennylujan42 6:f53933d232fc 119 ledState = !ledState; // Flip the general state
kennylujan42 6:f53933d232fc 120 LEDs[currentLED] = ledState;
kennylujan42 6:f53933d232fc 121 wait(0.01);
kennylujan42 6:f53933d232fc 122
kennylujan42 6:f53933d232fc 123
kennylujan42 6:f53933d232fc 124 }
kennylujan42 6:f53933d232fc 125
kennylujan42 6:f53933d232fc 126
kennylujan42 6:f53933d232fc 127
kennylujan42 6:f53933d232fc 128
scohennm 0:203b4129a213 129 #ifdef PRINTDBUG
scohennm 1:9340a340e588 130 pc.printf("xAcc = %f\r\n", xAcc);
scohennm 1:9340a340e588 131 pc.printf("yAcc = %f\r\n", yAcc);
scohennm 4:1d559bac561a 132 pc.printf("zAcc = %f\r\n", zAcc);
scohennm 0:203b4129a213 133 #endif
kennylujan42 6:f53933d232fc 134
scohennm 0:203b4129a213 135
kennylujan42 6:f53933d232fc 136
scohennm 0:203b4129a213 137 // Wait then do the whole thing again.
scohennm 3:c5291c70af48 138 }
scohennm 0:203b4129a213 139 }
scohennm 0:203b4129a213 140 }