PEN-SOLDER V7 possibly not compatible.

[Nomad990]

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.

[spezifisch]

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

[Nomad990]

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.

[Mafoto47]

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!!

[Gobracket]

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

[Gobracket]

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.

[Zalevskiypasha]

For all, who have v7
V7.zip

[spezifisch]

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!