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I have updated the code, and made a project page for it on github. PID now works nicely. This is my experiment. It has a LSM303 compass, an arduino nano. Compass is mounted at a tower. There is also a bluetooth module that will send data. I am using the arduino PID library to turn towards a heading. The results are much nicer then using if else type clauses to find the heading. There are however some jittering. I will be posting the source code also. The loop is designed such that it can accept ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/emekbot-a-pid-controlled-robot