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Originally posted by wysiswyg
How bad was the interfernce with the compass?? Which compasses did you try using?? Would having a totally plastic robot fix the problem??? Im asking these questions because Im building robots for fun and it is cheaper for me to use plastics. Ill see what I can find out about them.
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Only if you had plastic wire. The PWM controls work with pulses which causes a constantly changing magnetic field. And just so you know, the compasses sold through digikey are over $300, far surpassing the custom electronics budget.