A simple solution to the start-up brownout

A project log for Kaukomieli - a telepresence bot

A telepresence robot on the cheap

Harri Ohra-ahoHarri Ohra-aho 12/06/2015 at 17:000 Comments

Since there are a couple of capacitors on the circuit's power rail there's always a bit of residue charge when the battery is disconnected. I noticed that this can be used to alleviate the voltage dip. So the simplest solution to the problem without adding anything extra is: power up, power down, then immediately power up again. And the bluetooth starts without hiccups.

Slightly ugly, but good enough for now.