Quote:
Originally Posted by BrianG
Since a radio receiver simply sends 1ms-2ms pulses every ~20ms to the servos/ESC, all you have to do is emulate that. I've built a small circuit to test servos using a 555 timer, a couple of small caps, and a few resistors. The caps and resistors set the pulsewidth duty cycle and frequency. Quick and dirty for less than $10. Then, it would be a matter of using a potentiometer in place of a resistor to allow a variable output. The only thing I would be concerned about is throttle "drift" if the pot gets worn/dirty over time. I still have the schematic somewhere if you want it (just have to find it).
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Do you have a circuit diagram for this? I seams like a fun thing to do if I was bored sometime
Thanks