SparkFun Forums

[ryann]

How much can the QWIIC 3v3 power supply source?

I'd like to use the QWIIC bus to power an external Bluetooth module which draws 13.5mA. This way the BT module can be powered off when the OLA is sleeping (which is 99% of the time).

[PaulZC]

Hi @ryann,

The Qwiic port has its own AP2112 regulator, so the theoretical maximum is 600mA. 13.5mA won’t be a problem.

Best wishes,
Paul