Diff: main.cpp

Revision:

0:370b9123668e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Nov 07 19:23:48 2019 +0000
@@ -0,0 +1,49 @@
+
+
+#include "mbed.h"
+PwmOut ledpwm(A6);
+DigitalIn din(D6) ;
+AnalogIn analog_value(A0);
+
+
+int main() {
+    float meas_r = 0 ;
+   
+    while(1) {
+       
+      if(din.read()==0){  //switch is OFF
+      
+      ledpwm.period_ms(10);  // PWM period is 10ms
+     
+      ledpwm.write(0);       // 0% duty cycle, LED is OFF    
+           
+      }
+     
+     else if(din.read()==1){  //switch is ON
+     
+     ledpwm.period_ms(10);  // PWM period is 10ms
+     
+     ledpwm.write(0.5);     // 100% duty cycle, LED is fully ON
+         
+     wait(0.3);  
+       
+    // controlling LED brightness by varying potentiometer reading
+          
+     meas_r = analog_value.read();
+   
+     if (meas_r>0.2){ledpwm.write(meas_r);}  //this is done to make sure that 
+     // the LED does not go OFF completely, if potentiometer is "switched OFF"
+          
+     else   ledpwm.write(0.2);
+    
+     wait(0.5);  
+  
+   }
+      
+   
+   }
+     
+            
+   
+}
+