Probably in the wrong place, probably been questioned before but I couldn’t see anything.
I have an Arduino set to run a few servos, wondering the maximum distance for the servos to be from the arduino.
Cable run from control panel to servos is about 20m.
Would it be better to
- feed power locally and run the PWM control line to the servo at 20m? or
- Place the arduino locally and run the switch cables (toggle switch to arduino) for 20m? or
- Include a TTL circuit to provide the high/low signal for the switch pin and provide a control line independent of the arduino wiring?
I’m edging towards the third option to negate voltage/signal loss.