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Read an analog value using ADC.
Diff: main.cpp
- Revision:
- 0:c2d1ad5059da
- Child:
- 1:0490a15c76e4
diff -r 000000000000 -r c2d1ad5059da main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Feb 21 10:22:49 2014 +0000 @@ -0,0 +1,18 @@ +#include "mbed.h" + +AnalogIn analog_value(A0); + +DigitalOut myled(LED1); + +// Calculate the corresponding acquisition measure for a given value in mV +#define MV(x) ((0xFFF*x)/3300) + +int main() { + while(1) { + uint16_t meas = analog_value.read_u16(); // Converts and read the analog input value + if (meas > MV(1000)) { // If the value is greater than 1000 mV toggle the LED + myled = !myled; + } + wait(0.2); // 200 ms + } +}