ADAFruite motor shield as Vin

Using Arduino Motors, Mechanics, Power and CNC
1

I am using an Adafruite motor shield V1.2 with a 12v lead acid gel cell to power 4 motors. The motor shield can supply 5v down to the Arduino but is this safe? I believe the 5v pin on the Arduino is use, but I seem to remember reading somewhere that this pin was an output only.

Regards John

2

jd2117:
The motor shield can supply 5v down to the Arduino but is this safe?

Not according to the circuit diagram I found on Github.
5volt coming from the Arduino is used to power the digital part/chips of the shield.
Current used should be low.

Motor power (12volt) can be connected to V-in (jumper), so Arduino's 5volt regulator can run off the same battery. Or (jumper removed) on USB power.
Leo..

3

Thanks for your reply.

I understood it that, with the jumper on, I could supply the Arduino from my 12V battery. I thought this was using the Arduino 5V pin (output), This is nit the case then?

Regards John.