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Test midterm publish
Dependencies: MMA8451Q SLCD mbed
Fork of ACC_LCD_341_MID by
Diff: acc_341.cpp
- Revision:
- 0:203b4129a213
- Child:
- 1:9340a340e588
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/acc_341.cpp Thu Sep 25 15:53:53 2014 +0000 @@ -0,0 +1,73 @@ +#include "mbed.h" +#include "MMA8451Q.h" +#include "SLCD.h" + +/* +Test of the accelerometer, digital I/O, on-board LCD screen. + Looing at vector product of the x-y components of the accelerometer. + Works pretty well. Still rough, program wise - sc 140710 + */ + +#define BLINKTIME 0.700 +#define DATATIME 0.200 + +#define PROGNAME "ACCLCD341\r/n" + +#define PRINTDBUG + +#if defined (TARGET_KL25Z) || defined (TARGET_KL46Z) + PinName const SDA = PTE25; + PinName const SCL = PTE24; +#elif defined (TARGET_KL05Z) + PinName const SDA = PTB4; + PinName const SCL = PTB3; +#else + #error TARGET NOT DEFINED +#endif + +#define MMA8451_I2C_ADDRESS (0x1d<<1) + +SLCD slcd; //define LCD display + +MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS); +Serial pc(USBTX, USBRX); + + + +void LCDMess(char *lMess, float dWait){ + slcd.Home(); + slcd.clear(); + slcd.printf(lMess); + wait(dWait); +} + + +int main() { + float xAcc; + float yAcc; + float vector; + char lcdData[10]; //buffer needs places dor decimal pt and colon + +#ifdef PRINTDBUG + pc.printf(PROGNAME); +#endif +// main loop forever + while(true) { + +//Get accelerometer data - tilt angles minus offset for zero mark. + xAcc = abs(acc.getAccX()); + yAcc = abs(acc.getAccY()); + // Calulate vector sum of x and y reading. + vector = sqrt(pow(xAcc,2) + pow(yAcc,2)); + + +#ifdef PRINTDBUG + pc.printf("vector = %f\r\n", vector); +#endif + + sprintf (lcdData,"%4.3f",vector); + LCDMess(lcdData, DATATIME); +// Wait then do the whole thing again. + wait(DATATIME); + } +} \ No newline at end of file