.NET Micro Framework (Archive)

Just before I started with my DreamQuest project I was working on a project called HomeTerm. HomeTerm is a web-enabled thermostat. The idea is that you have your HomeTerm device at home controlling the temperature just like a normal thermostat but with the added bennefits of the Internet.

You can control and monitor the temperature of your room from almost anywhere. You can enter a detailed temperature plan from the comfort of your computer. Also detailed graphs are available for temperature and humidity.

Read more…

With the holidays and the Wiki consuming a lot of time lately the progress has been a little slower but I’m still working on my HomeTerm project.

The current status is now:

• Basic webinterface is ready
• SHT11 Temperature and Humidity sensor supported
• Storage of settings supported trough an Extended Weak  Reference object
• Relais outputs enabled.

I made a screencast of the Webinterface:

You can download the very preliminary version here:
HomeTerm_Pre1.zip

The RGB Led Panel project get’s a bit more real. The SHT11 class and Yahoo Weather classes I made earlier are now combined with the application and I’ve created a PHP that helped me convert GIF images to an C# byte[] array the RGBDisplay class can understand.

The current application displays the following information:

• Temperature from Yahoo
• Humidity from Yahoo
• Weather image based on Yahoo Weather code
• Temperature from SHT11
• Humidity from SHT11
• Time synced with NTP time server
• Date synced  with NTP time server
• Random anim

You can find more information about this project on its project page

Joyed by the fact that it’s inexpensive and has an serial interface I’ve ordered an Sensirion SHT11 Temperature and Humidity sensor module from Parallax. After recieving it I’ve discovered that the serial interface isn’t an standard serial interface like SPI or I2C. To communicate with the SHT11 I’ve created an .NET Micro Framework 3.0 class. It handles the communication with the SHT11 and processes the raw values to usable ones.

The class solution has two parts:
- IO provider for SHT11
- The SensirionSHT11 class

You can download the Class Solution with a Demo application on the Sensirion SHT11 project page.