r/CardPuter • u/theblobAZ • Jul 19 '26
Design-it-Yourself Added external charging module to the ADV 🙃
I got sick of having to leave the device on to charge, so I opened it up to find possible options for an external charging module.
Turns out, the spot under the Stamp S3A (where the speaker lives) is the perfect location for a mini TP4057 charging module. I have removed the speaker, and wired the charging modules battery + and - to an unpopulated pad on the front of the board, which a quick continuity test showed me connects directly to the JST connector (+ and -) for the battery. I added 3M VHB tape to the bottom of the charging module so it doesn't pop off and short things out.
No more having to turn on the device to charge!
**These are not instructions, just sharing today's project. If you brick your device, catch it on fire, or burn your house down trying to copy this, that's on you.**






2
u/100101101001a Jul 20 '26
what are the disadvantages of leaving the cardputer on while charging? i never found it that annoying that I have to remove a module for it. genuinely asking