Hi I've just put together a robot and Im using the Arduino Uno with the Motor Shield R3 and for the drive wheels I used the Tamiya gearbox specs are as follows :Typical operating voltage: 3 V Free-run motor shaft speed @ 3V: 12300 rpm1 Free-run current @ 3V: 150 mA2 Stall current @ 3V: 2100 mA …

Motor Shield R3

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