FRA221-2018 / Mbed 2 deprecated Nucleo-ADC

Analog to Digital Converter Example code

Dependencies:   mbed

Diff: main.cpp

Revision:
0:c8b89a6e4c0e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 18 15:57:42 2018 +0000
@@ -0,0 +1,26 @@
+#include "mbed.h"
+
+AnalogIn analog_value(A0);
+
+DigitalOut led(LED1);
+
+int main()
+{
+    float meas_r;
+    float meas_v;
+
+    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
+        
+        // LED is ON when the value is above 2V
+        if (meas_v > 2000) {
+            led = 1; // LED ON
+        } else {
+            led = 0; // LED OFF
+        }
+
+        wait(0.2); // 200 millisecond
+    }
+}