hello. I am unfamiliar with the trex jr. and not sure if the motors require capacitors. I will be using the trex to power 2 solarbotics 6 volt 130 size motors. Thanks in advance.
Capacitors on the motors help reduce the effect of motor noise on the rest of your system. There’s no harm in using them from the outset as a precautionary measure, but you can try the motors first without them and see if you run into any trouble with system components resetting.