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Old 09-25-2010, 07:46 PM   #3802 (permalink)
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I'm confused. Do you mean R8 was a mistake? It's just ohms law at work here. If R8 is 2k, and R10 is 4.7k, it will work, assuming no solder bridges. R4 is totally irrelevant except for acting as a low pass filter. R4 can be anything you want, and it won't affect the voltage at the microcontroller throttle pin. If you measure 0v at throttle input to the microcontroller, then there is a solder bridge to ground somewhere before that pin. It's not that no voltage is getting to the pin because of resistor sizes.
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