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i've read that you need to place 120 ohm resistors between the first and last connection if you use more than two devices in a rs485 network. Do i need them if i use this module?
Can i use this circuit to control different motors (not at once), i have 9v, a 12v and a 24v. I know that the capacitors must be able to handle the voltage, but do i need capacitors with different farad ratings for each motor-setup?Thank you for your replies!