[TriEmbed] Pinewood derby help

[Craig Cook]

At my cub pack we have a "Dad's race" the night before the boys race.  Dads don't have to comply to the same rules the boys do.  i.e. if we can get a motor on the car and it weighs more than 5oz, thats fine.  Purely for engineering fun.
I have a donor RC dump truck I am going to take the motor and axel out of.  I have a NTC CHIP I was going to strap on to control the motor.
I've got the kernel upgraded to 4.4 and PWM working.
Am I correct in thinking if I can hook up the motor to the CHIP board I could use PWM to "slow" it down? i.e. if I let the motor spin at full speed the derby car wheels may just sit and spin.  If I can send the right amount of pulses I should be able to control the motor speed.

The dump truck was powered by 3 x AA batteries, which makes me believe the motor accepts 5V or less, so using the CHIP should not fry it.  The motor has a 1 ohm resistor attached and a capacitor with 104 written on it.
I'm ready to attach the motor to the CHIP, any reason I shouldn't and see what happens?

Thanks
Craig
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