Dorian Folie / Mbed 2 deprecated ACC_LCD_341_Basic_AXIS_DF

v1

Dependencies:   MMA8451Q SLCD_minus_mod mbed

Fork of ACC_LCD_341_Basic by Stanley Cohen

acc_341.cpp@11:40fda348bb5e, 2016-11-28 (annotated)

Committer:
dorian505
Date:
Mon Nov 28 05:18:40 2016 +0000
Revision:
11:40fda348bb5e
Parent:
10:3de03f06624e 
final version

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"
dorian505 10:3de03f06624e 5 #define NUMBUTS 2
dorian505 10:3de03f06624e 6 #define RBUT PTC3
dorian505 6:045defd0d877 7 #define LBUT PTC12 // port addresses for left button
dorian505 10:3de03f06624e 8 #define BUTTONTIME 0.1
scohennm 0:203b4129a213 9 /*
scohennm 0:203b4129a213 10 Test of the accelerometer, digital I/O, on-board LCD screen.
scohennm 0:203b4129a213 11 Looing at vector product of the x-y components of the accelerometer.
scohennm 0:203b4129a213 12 Works pretty well. Still rough, program wise - sc 140710
scohennm 0:203b4129a213 13 */
scohennm 0:203b4129a213 14
scohennm 3:c5291c70af48 15 #define DATAINTERVAL 0.200
scohennm 4:1d559bac561a 16 #define LCDDATALEN 10
dorian505 6:045defd0d877 17 #define xAxis 0
dorian505 6:045defd0d877 18 #define yAxis 1
dorian505 6:045defd0d877 19 #define zAxis 2
dorian505 8:971f38affa78 20
scohennm 3:c5291c70af48 21 #define PROGNAME "ACCLCD341-541\r\n"
scohennm 0:203b4129a213 22
scohennm 0:203b4129a213 23 #define PRINTDBUG
scohennm 2:6003ed409def 24 //
scohennm 0:203b4129a213 25 #if defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
scohennm 2:6003ed409def 26 PinName const SDA = PTE25; // Data pins for the accelerometer/magnetometer.
scohennm 2:6003ed409def 27 PinName const SCL = PTE24; // DO NOT CHANGE
scohennm 0:203b4129a213 28 #elif defined (TARGET_KL05Z)
scohennm 0:203b4129a213 29 PinName const SDA = PTB4;
scohennm 0:203b4129a213 30 PinName const SCL = PTB3;
scohennm 0:203b4129a213 31 #else
scohennm 0:203b4129a213 32 #error TARGET NOT DEFINED
scohennm 0:203b4129a213 33 #endif
scohennm 0:203b4129a213 34
scohennm 0:203b4129a213 35 #define MMA8451_I2C_ADDRESS (0x1d<<1)
scohennm 0:203b4129a213 36
scohennm 0:203b4129a213 37 SLCD slcd; //define LCD display
scohennm 4:1d559bac561a 38 char lcdData[LCDDATALEN]; //buffer needs places dor decimal pt and colon
scohennm 0:203b4129a213 39
scohennm 0:203b4129a213 40 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
scohennm 0:203b4129a213 41 Serial pc(USBTX, USBRX);
scohennm 3:c5291c70af48 42 Timer dataTimer;
dorian505 10:3de03f06624e 43 Timer ButtonTimer;
dorian505 10:3de03f06624e 44
dorian505 10:3de03f06624e 45 int displayState;
dorian505 10:3de03f06624e 46 DigitalIn buttons[NUMBUTS] = {RBUT, LBUT};
dorian505 10:3de03f06624e 47 DigitalIn button(LBUT);
scohennm 2:6003ed409def 48
scohennm 0:203b4129a213 49
scohennm 3:c5291c70af48 50 void LCDMess(char *lMess){
scohennm 0:203b4129a213 51 slcd.Home();
scohennm 0:203b4129a213 52 slcd.clear();
scohennm 0:203b4129a213 53 slcd.printf(lMess);
scohennm 0:203b4129a213 54 }
scohennm 4:1d559bac561a 55
scohennm 4:1d559bac561a 56 void LCDsignedFloat(float theNumber){
scohennm 5:29c6ba524263 57 sprintf (lcdData," %3.2f",theNumber);
scohennm 5:29c6ba524263 58 if (theNumber < 0.0) sprintf (lcdData,"<%3.2f",fabs(theNumber));
scohennm 4:1d559bac561a 59 LCDMess(lcdData);
scohennm 4:1d559bac561a 60 }
scohennm 4:1d559bac561a 61
scohennm 3:c5291c70af48 62 void initialize_global_vars(){
scohennm 3:c5291c70af48 63 pc.printf(PROGNAME);
scohennm 3:c5291c70af48 64 dataTimer.start();
scohennm 3:c5291c70af48 65 dataTimer.reset();
scohennm 3:c5291c70af48 66 }
scohennm 0:203b4129a213 67
scohennm 0:203b4129a213 68 int main() {
scohennm 0:203b4129a213 69 float xAcc;
scohennm 3:c5291c70af48 70 float yAcc;
dorian505 6:045defd0d877 71 float zAcc;
dorian505 6:045defd0d877 72 xAcc = acc.getAccX();
dorian505 6:045defd0d877 73 yAcc = acc.getAccY();
dorian505 7:ae5c27eb1492 74 zAcc = acc.getAccZ();
scohennm 0:203b4129a213 75
scohennm 3:c5291c70af48 76 initialize_global_vars();
scohennm 0:203b4129a213 77 // main loop forever
dorian505 6:045defd0d877 78 //Get accelerometer data - tilt angles minus offset for zero mark.
dorian505 9:b2768bb45a68 79 while (true) {
dorian505 8:971f38affa78 80 if (ButtonTimer > BUTTONTIME){
dorian505 10:3de03f06624e 81 //buttonValue = !buttons[1].read();
dorian505 11:40fda348bb5e 82 //pc.printf("%d \r\n",buttonValue);
dorian505 8:971f38affa78 83 for (int i=0; i < NUMBUTS; i++){ // index will be 0 or 1
dorian505 8:971f38affa78 84 if(!buttons[i]) {
dorian505 9:b2768bb45a68 85 displayState = i;
dorian505 6:045defd0d877 86 switch (displayState){ // this keeps things generic
dorian505 6:045defd0d877 87 case xAxis:
dorian505 6:045defd0d877 88 LCDsignedFloat(xAcc);
dorian505 6:045defd0d877 89 break;
dorian505 6:045defd0d877 90 case yAxis:
dorian505 6:045defd0d877 91 LCDsignedFloat(yAcc);
dorian505 6:045defd0d877 92 break;
dorian505 6:045defd0d877 93 case zAxis:
dorian505 6:045defd0d877 94 LCDsignedFloat(zAcc);
dorian505 6:045defd0d877 95 i=-1;
dorian505 6:045defd0d877 96 break;
dorian505 6:045defd0d877 97 }
dorian505 6:045defd0d877 98 }}
dorian505 6:045defd0d877 99 // if ! buttons
scohennm 0:203b4129a213 100
scohennm 0:203b4129a213 101 #ifdef PRINTDBUG
dorian505 10:3de03f06624e 102 pc.printf("xAcc = %f\r\n", xAcc);
dorian505 10:3de03f06624e 103 pc.printf("yAcc = %f\r\n", yAcc);
dorian505 10:3de03f06624e 104 pc.printf("zAcc = %f\r\n", zAcc);
dorian505 10:3de03f06624e 105 pc.printf("LBUT = %f\r\n", LBUT);
scohennm 0:203b4129a213 106 #endif
scohennm 0:203b4129a213 107
scohennm 0:203b4129a213 108 // Wait then do the whole thing again.
dorian505 10:3de03f06624e 109 }
dorian505 10:3de03f06624e 110 }}