PEN-SOLDER V7 possibly not compatible.

I ordered a same style solder pen off of aliexpress and the board says v7 instead of v3 upon flashing the firmware it shows way less info than intended on the oled screen.

Do you have a dump of the original firmware? Perhaps the OLED display initialization is different from V3 and could be adapted.

I can upload one in a couple days I didn't notice until I had already tried flashing the v3 firmware but I have a stock iron on the way.

Hi! Here is the V7 original firmware I have just dump.
Pen_Solder_V7_ori.zip
I have the same result as Nomad990 with the V3 modded Firwware.
Thanks for your work!!

Hi, great job!
Does this finally fixed for v7 board? Wondering if only impact the display or other feature as well?

This is the solution for v7 board:

Add code below

  u8g2.sendF("ca", 0x0a8, 0x02f);

to

T12PenSolder/firmware/src/main.cpp

Line 56 in 11f6918

Then power off the board (MUST!). The display will be fixed when you turn it back on.

For all, who have v7
V7.zip

I finally got around to test and merge this.
The different initialization is not compatible with V3 (gives me a garbled screen) so I added a build option to switch between V3 and V7, see https://github.com/spezifisch/T12PenSolder/blob/6f2c2afc952d80434b5463d7841688dab391555d/README.md#pen-solder-v7.

Thanks to you all!