Power Supply for SparkFun RedBoard Qwiic In stock DEV-15123

Qwiic System
1

I am brand new at electronics hence what might seem to be a very stupid question.

I am developing a project which will use a RedBoard Qwiic to control a stepper motor. Once it works in a development environment I will need to add an external power supply using the on-board barrel jack. The product description states “The on-board power regulator can handle anything from 7 to 15VDC.” However it appears to me that the board is using 3.3V (from the USB) as its power source. Can I add, say, this unit - “Wall Adapter Power Supply - 12VDC, 600mA (Barrel Jack)” - as the external power source or will this be too much for the board? Should I be using a 5 volt power source and soldering the voltage jumpers together? Does the on-board power regulator take care of all my concerns? (Which would be nice.)

As I said, this is all new to me so any help would be appreciated.

2

Hello ksquared.

The [TOL-15313 will work just fine with a RedBoard Qwiic. There’s a voltage regulator connected to the barrel jack that drops your input voltage down to what the board needs to operate. You just need to be sure not to apply more that 15 volts to the barrel jack.](Wall Adapter Power Supply - 12VDC, 600mA (Barrel Jack) - TOL-15313 - SparkFun Electronics)

3

Thank you