William Marsh / Mbed OS Accelerometer_example

Sample program for lab 4

main.cpp@4:72b8fb7423dd, 2020-02-19 (annotated)

Committer:
WilliamMarshQMUL
Date:
Wed Feb 19 20:54:44 2020 +0000
Revision:
4:72b8fb7423dd
Parent:
3:d5c746840139 
Update RTOS and wait API

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WilliamMarshQMUL 0:a1caba5c4e48 1 #include "mbed.h"
WilliamMarshQMUL 0:a1caba5c4e48 2 #include "MMA8451Q.h"
WilliamMarshQMUL 0:a1caba5c4e48 3
WilliamMarshQMUL 0:a1caba5c4e48 4 PinName const SDA = PTE25;
WilliamMarshQMUL 0:a1caba5c4e48 5 PinName const SCL = PTE24;
WilliamMarshQMUL 0:a1caba5c4e48 6
WilliamMarshQMUL 0:a1caba5c4e48 7 #define MMA8451_I2C_ADDRESS (0x1d<<1)
WilliamMarshQMUL 0:a1caba5c4e48 8
WilliamMarshQMUL 0:a1caba5c4e48 9 int main(void)
WilliamMarshQMUL 0:a1caba5c4e48 10 {
WilliamMarshQMUL 0:a1caba5c4e48 11 MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
WilliamMarshQMUL 0:a1caba5c4e48 12 PwmOut rled(LED1);
WilliamMarshQMUL 0:a1caba5c4e48 13 PwmOut gled(LED2);
WilliamMarshQMUL 0:a1caba5c4e48 14 PwmOut bled(LED3);
WilliamMarshQMUL 0:a1caba5c4e48 15 Serial pc(USBTX, USBRX); // tx, rx
WilliamMarshQMUL 0:a1caba5c4e48 16
WilliamMarshQMUL 0:a1caba5c4e48 17
WilliamMarshQMUL 0:a1caba5c4e48 18 pc.printf("MMA8451 ID: %d\n", acc.getWhoAmI());
WilliamMarshQMUL 0:a1caba5c4e48 19
WilliamMarshQMUL 0:a1caba5c4e48 20 while (true) {
WilliamMarshQMUL 0:a1caba5c4e48 21 float x, y, z;
WilliamMarshQMUL 0:a1caba5c4e48 22 x = acc.getAccX();
WilliamMarshQMUL 0:a1caba5c4e48 23 y = acc.getAccY();
WilliamMarshQMUL 0:a1caba5c4e48 24 z = acc.getAccZ();
WilliamMarshQMUL 0:a1caba5c4e48 25 rled = 1.0f - abs(x);
WilliamMarshQMUL 0:a1caba5c4e48 26 gled = 1.0f - abs(y);
WilliamMarshQMUL 0:a1caba5c4e48 27 bled = 1.0f - abs(z);
WilliamMarshQMUL 4:72b8fb7423dd 28 ThisThread::sleep_for(300); // wait(0.3);
WilliamMarshQMUL 0:a1caba5c4e48 29 pc.printf("X: %1.2f, Y: %1.2f, Z: %1.2f\n", x, y, z);
WilliamMarshQMUL 0:a1caba5c4e48 30 }
WilliamMarshQMUL 0:a1caba5c4e48 31 }