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Download the material from drive.google.com/open?id=1kLlV2NlXQeXo56ItreQ1JlUParTRc-16 1>.Install circuit 1.1 Install metal film resistor,DIP-8P IC socket,Self-Locking switch,Potentiometer,S8550, Capacitor, Red LED on PCB according to mark on PCB 1.2 Install Mecanum wheel The support bolts of the caster are inserted into the hole, tighten the nuts screwed into the caster, and finally fit the caster and tighten....