PID Controller using microcontroller

Does anyone have any guidance for implementing a PID controller using a microcontroller or just a computer program? I'd like to do try one of these two implementations, but I need some PID code to start with.

-Jbrew

A bit of an open ended question there. What microcontroller are you going to use and what language do you want to use?

If you want a Microcontroller that all the basic hardware stuff has been done like crystal speed and power supply then I would go with Arduino board http://www.arduino.cc/. It's fairly easy to learn and they have a lot of libraries to use including a PID library and its based on c++.
If you want to build one from the ground up then there is a lot of microcontroller but I would say the most popular one would be Microchip's PIC, it had a free IDE with a c complier in it, there is a huge range of PIC's as well for really basic 8bit one's to 32 bit one's. Here is some code for a PIC PID controlled heater http://www.microchipc.com/sourcecode/PIC_Hi-Tech_C_Mike_Pearces_heater_project.zip

cheers steve

Great suggestions, thank you! I've actually been looking at that code you suggested already. I currently have a Basic Atom which is build around the 16F876 PICmicro MCU, and I was exploring using that. I could possibly go with the arduino too. Thanks again.

-Jbrew

if you go arduino- there are already some PID examples available...
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1226431507

I went with the arduino because my PIC board isn't directly supported in linux. I tried using wine(not sure if you're familiar) and got some strange results when trying to compile BASIC code in the IDE.

Has anyone used the Propeller chip?

Possibly of interest to the OP:

https://www.homebrewtalk.com/f235/yet-another-option-pid-control-350979/#post4372987