Accurate Temperature & Humidity Monitoring with SHT15 on Windows 10 IoT Core

Windows 10 IoT Core and the SHT15 Temperature & Humidity Sensor

Project Overview

Update 08‑15‑2015: Project migrated to Visual Studio 2015 RTM.

 Windows 10 IoT Core and SHT15 Sensor

This guide demonstrates how to integrate the SHT15 sensor with a Windows 10 IoT Core device. The SHT15 delivers precise temperature and humidity readings, making it ideal for environmental monitoring applications.

I ported an existing C++ library to C# for use with .NET Core. The conversion was straightforward, except for the sensor’s data‑ready wait logic. The original code loops 100 times to check the data pin. On Windows 10 IoT Core, that loop is insufficient; extending it to 3,000 iterations resolves the issue. The longer wait compensates for the kernel’s scheduler and the device’s I/O latency. If you encounter similar timing problems, consider increasing the loop count or implementing a timed delay with Task.Delay.

The application reads temperature, humidity, and calculates the dew point using the same algorithm as the Arduino DHT library. DHT Library provides a reliable reference for the formula.

Hardware Wiring

1. SHT15 Vcc → 3.3 V
2. SHT15 GND → GND
3. SHT15 Data → GPIO24 (Pin #18)
4. SHT15 SCK → GPIO23 (Pin #16)

Using the Sample

Open the project in Visual Studio 2015 and select the Remote Device debugging option. Configure the IP address of your Raspberry Pi 2 under the Debug tab.

Run the app and navigate to the internal HTTP server with the URL https://<RPi2 IP Address>:8080. The web page refreshes automatically every 5 seconds, displaying live temperature, humidity, and dew point values.

Source: Windows 10 IoT Core and SHT15