Diff: main.cpp

Revision:

0:38649de1d7c1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Nov 18 21:16:35 2020 +0000
@@ -0,0 +1,42 @@
+#include "mbed.h"
+
+AnalogIn analog_value(A0);
+
+DigitalOut led(LED1);
+
+int main()
+{
+    float meas_r;
+    float meas_v;
+    float R;
+    float T;
+    float k;
+    
+    printf("\nTest du Programme a base de potentiometre\n");
+
+    while(1) {
+
+        k = analog_value.read();
+        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
+        
+        R = (11000)/((1/meas_r)-1);
+        T=(1/((1/298.15)+ (log10(R/10000))/3973))-273.15;
+        
+        
+        
+        // Display values
+        printf("\nmeasure = %f = %.0f C\n", meas_r, meas_v);
+        printf("\ntest %f , %f, %f\n",R,T,k);
+        printf("measure temperature = %f C",T);
+
+        // LED is ON is the value is below 1V
+        if (meas_v < 3300/2) {
+            led = 1; // LED ON
+        } else {
+            led = 0; // LED OFF
+        }
+
+        wait(3.0); // 1 second
+    }
+}