David k
/
Nucleo_read_analog_value
INFRARED
Diff: main.cpp
- Revision:
- 0:4514066bad64
- Child:
- 1:68e7f752b1fd
diff -r 000000000000 -r 4514066bad64 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Dec 15 03:27:37 2018 +0000 @@ -0,0 +1,27 @@ +#include "mbed.h" +#include <cmath> +AnalogIn analog_value(A0); + +DigitalOut led(LED1); + +int main() { + float meas; + float x; + + printf("\nAnalogIn example\n"); + + while(1) { + meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0) + meas = meas * 3300; // Change the value to be in the 0 to 3300 range + x = (330377) * (pow(meas , (-1.349f))); + printf("%.4f\n", x); + //printf("volt %f\n", meas); + if (meas > 2000000) { // If the value is greater than 2V then switch the LED on + led = 1; + } + else { + led = 0; + } + wait(0.4); // 500 ms + } +}