Windows 10 IoT Temperature SMT172

First install Windows 10 IOT on Raspberry Pi board. Connect SMT172 sensor to the Raspberry Pi pins (as shown in the schematics). SMT172 has a duty cycle (PWM) output that can be directly interfaced with a microcontroller without the use of extra components. https://github.com/AlirezaP/Windows_Iot_Temperature_SMT172-/blob/master/Doc/smt172.pdf

Read Temperature:

1. Measure duty cycle (PWM)

          for (int avg = 0; avg <= 7; avg++) 
           { 
               for (int i = 0; i < 2000; i++) 
               { 
                   if (tPintObj.Read() == GpioPinValue.High) 
                   { 
                       pwmh++; 
                   } 
                   else 
                   { 
                       pwml++; 
                   } 
                   await Task.Delay(TimeSpan.FromTicks(10)); 
               } 
               sum += ((pwmh / (pwml + pwmh))); 
           } 

2. Put DC in the below formula

           Temperature = 212.77 × DC − 68.085 
           double avg = (double)sum / (double)8; 
           double temperature = (double)212.77 * avg - (double)68.085; 
           return temperature;