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Isn't connecting a motor to it an overkill? This circuit is designed to capture microwatts of power put into the air by radio transmitters, wifi routers and mains wires hidden in the walls. I don't think that it's possible to drive the motor with this small power, it wouldn't even start up.
Christmas Tree Lights Battery Voltage Tester
Can you make DIY BMS?
SO8 to DIP8 AdapterView Instructable »
Christmas Tree Lights Battery Voltage TesterView Instructable »