M5Atom based power turns on briefly before user code runs

konacurrents

I have two M5Atom based controllers including:

They both run nicely being controlled over MQTT or BLE.

But any devices connected that need power are receiving a quick amount
of power when the M5Atom is turned on. This occurs before my software runs - so before I can decide whether the power should be on or off.

So for the H-Driver, the connected small motor gets a quick jolt of power before my software runs. For the Atom Socket, the same quick power on occurs (turning on the connected device) before my software can determine the correct on/off mode.

Is there any way to stop this? It's not good (actually it's rather bad).

Thanks,