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@DrAzzy
Non-band side - goes on negative side of the motor. (When a motor (or other inductive load) is turned off, a brief voltage spike will be produced at the negative side - this diode will prevent it from getting above the supply voltage.
Yeah, just something in series with the motor to drop a bit of voltage and keep the motor within spec. Either a 1-2 ohm resistor, or a diode (in the forward direction, ie, with the band towards the motor) would do the trick.
Looks good.