Marco Zecchini
/
Esempio_read_analog
Analog in example
Diff: main.cpp
- Revision:
- 0:f2fd41e16884
- Child:
- 1:b1e1b7ad742f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Feb 23 11:58:27 2019 +0000 @@ -0,0 +1,29 @@ +#include "mbed.h" + +AnalogIn analog_value(A0); + +DigitalOut led(LED1); + +int main() +{ + float meas_r; + float meas_v; + + printf("\nAnalogIn example\n"); + + while(1) { + meas_r = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range) + meas_v = meas_r * 3300; // Converts value in the 0V-3.3V range + // Display values + printf("measure = %f = %.0f mV\n", meas_r, meas_v); + + // LED is ON is the value is below 1V + if (meas_v < 1000) { + led = 1; // LED ON + } else { + led = 0; // LED OFF + } + + wait(1.0); // 1 second + } +}