Modified example of LED / Accelerometer demo. Added TSI for brightness control
Dependencies: MMA8451Q TSI USBDevice mbed
Fork of FRDM_MMA8451Q by
main.cpp
00001 #include "mbed.h" 00002 #include "TSISensor.h" 00003 #include "MMA8451Q.h" 00004 #include "USBMouse.h" 00005 00006 #define MMA8451_I2C_ADDRESS (0x1d<<1) 00007 00008 00009 int main(void) { 00010 USBMouse mouse; 00011 float pct_tsi = 0; 00012 TSISensor tsi; 00013 MMA8451Q acc(PTE25, PTE24, MMA8451_I2C_ADDRESS); 00014 PwmOut rled(LED_RED); 00015 PwmOut gled(LED_GREEN); 00016 PwmOut bled(LED_BLUE); 00017 rled.period_ms(2); 00018 bled.period_ms(2); 00019 gled.period_ms(2); 00020 while (true) { 00021 float accs[3]; 00022 float pct_tsi_t; 00023 pct_tsi_t = tsi.readPercentage(); 00024 pct_tsi = pct_tsi_t == 0 && pct_tsi > 0.1 ? pct_tsi : pct_tsi_t; 00025 acc.getAccAllAxis(accs); 00026 rled = 1.0 - (abs(accs[0])*pct_tsi); 00027 gled = 1.0 - (abs(accs[1])*pct_tsi); 00028 bled = 1.0 - (abs(accs[2])*pct_tsi); 00029 mouse.move(accs[0]*10,accs[1]*-10); 00030 wait(0.001); 00031 } 00032 }
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