ebay 103c8t6 oled, nrf24, esp8266 + empty pads

[electrobling]

I could not source solder tab lithium batteries locally, so I found a way to install a battery holder:

CIN_1333.jpg (184.39 KiB) Viewed 364 times

Note the addition of the two Schottky diodes. You have to trim off the placement stubs on the holder rear.

[aroldorosenberg]

I found the schematic for this board in a taobao listing.

It's a PDF, and it seems like there's also a pcb design file. What program uses .PCB?

There are also some larger files, but I can't seem to download them without installing a chinese botnet app.

Check this out:

https://imgur.com/a/EguBdxq

[ristomatti]

I found the schematic for this board in a taobao listing.

Great! Thanks for sharing your findings. The schematic posted earlier on the thread had some an annoying overlay. Unfortunately I don't know the answer to your question.

[ristomatti]

I grabbed the images from the link aroldorosenberg posted in case the page disappears (and for easier viewing).

Board design:



Schematic: