Timothé Turko / Mbed 2 deprecated STM32_read_analog

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Dependencies:   mbed

main.cpp@0:38649de1d7c1, 2020-11-18 (annotated)

Committer:
turko
Date:
Wed Nov 18 21:16:35 2020 +0000
Revision:
0:38649de1d7c1
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
turko 0:38649de1d7c1 1 #include "mbed.h"
turko 0:38649de1d7c1 2
turko 0:38649de1d7c1 3 AnalogIn analog_value(A0);
turko 0:38649de1d7c1 4
turko 0:38649de1d7c1 5 DigitalOut led(LED1);
turko 0:38649de1d7c1 6
turko 0:38649de1d7c1 7 int main()
turko 0:38649de1d7c1 8 {
turko 0:38649de1d7c1 9 float meas_r;
turko 0:38649de1d7c1 10 float meas_v;
turko 0:38649de1d7c1 11 float R;
turko 0:38649de1d7c1 12 float T;
turko 0:38649de1d7c1 13 float k;
turko 0:38649de1d7c1 14
turko 0:38649de1d7c1 15 printf("\nTest du Programme a base de potentiometre\n");
turko 0:38649de1d7c1 16
turko 0:38649de1d7c1 17 while(1) {
turko 0:38649de1d7c1 18
turko 0:38649de1d7c1 19 k = analog_value.read();
turko 0:38649de1d7c1 20 meas_r = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range)
turko 0:38649de1d7c1 21 meas_v = meas_r * 3300; // Converts value in the 0V-3.3V range
turko 0:38649de1d7c1 22
turko 0:38649de1d7c1 23 R = (11000)/((1/meas_r)-1);
turko 0:38649de1d7c1 24 T=(1/((1/298.15)+ (log10(R/10000))/3973))-273.15;
turko 0:38649de1d7c1 25
turko 0:38649de1d7c1 26
turko 0:38649de1d7c1 27
turko 0:38649de1d7c1 28 // Display values
turko 0:38649de1d7c1 29 printf("\nmeasure = %f = %.0f C\n", meas_r, meas_v);
turko 0:38649de1d7c1 30 printf("\ntest %f , %f, %f\n",R,T,k);
turko 0:38649de1d7c1 31 printf("measure temperature = %f C",T);
turko 0:38649de1d7c1 32
turko 0:38649de1d7c1 33 // LED is ON is the value is below 1V
turko 0:38649de1d7c1 34 if (meas_v < 3300/2) {
turko 0:38649de1d7c1 35 led = 1; // LED ON
turko 0:38649de1d7c1 36 } else {
turko 0:38649de1d7c1 37 led = 0; // LED OFF
turko 0:38649de1d7c1 38 }
turko 0:38649de1d7c1 39
turko 0:38649de1d7c1 40 wait(3.0); // 1 second
turko 0:38649de1d7c1 41 }
turko 0:38649de1d7c1 42 }