@hek I entered a new password, after submitting it still says invalid reset code.

I've lost my username phil83 - password resetting does not work, it always says invalid reset code. Had to create this new one to post here.

@hawk_2050 @bjornhallberg Thanks for the information about the TPS61221. I checked the data sheet and also checked availability at AliExpress. I guess I'm going to switch to that one.


@GaryStofer What do you mean by putting the mini circuitry on the board? You mean just use an Atmega328 instead of the Pro Mini board? The reason for this is that the Pro Mini nearly costs as much as the parts and my soldering skills are not good enough to solder the Atmega directly onto the board.
I had to create a new user name - I can't log into the old any more, the password reset feature is also not working - sorry.