1.3" display screen on TTGO - screen display corrupt

Development Hardware
1

Hi,
I have a T22 v1.0 20190612 LilyGo. With its default firmware and my 1.3" screen soldered onto the board. I could get perfect display and see its MAC address. I’ve just put the firmware-tbeam-UE865-1.1.33 onto it and got all the pairing done with diagnostics on a PC on the COM port. Linked to my mobile and communication looks good MSG ack’s etc.

Is there any configuration for the screen? Not sure if I have a few more pixels than the 0.96" screen but the text is very fragmented. I get to see a whisper of text and icons occasionally.

I’m wondering it the screen has a pixel layout/refresh speed and the screen I’ve gotten isn’t so compliant.

Tim

2

Do you have a link for the screen you have?

3
4

Oled 1'3" change - #6 by TitanTronics look like I’m commenting some lines of code out then?

5

Hmm that didn’t work, got my PIO in VS code built and uploaded. Comms are still online and the Arduino screen was definitely functional on the stock LilyGo firmware…

6

I think it is removing the comment on the line in configuration.h:

//#define USE_SH1106

Can’t say if it’d work, have not tried it.

7

Unfortunately it didn’t. Some of the other builds for Lora engaged the screen with the regular releases but it was a mess of pixels. A bit like a gone wrong BMP scattered pixels

8

I think its a SSD1306 screen. It works fine with SoftRF

9

Screen shot from the bay listing linked above:

Notification_Center

10

I think I got the larger one working at least on one board. The other board doesn’t seem to function for the screen.

16132380706197415311028487844268
161323807061974153110284878442683024×4032 1.98 MB

11

161325060494374476192294881335
1613250604943744761922948813353024×4032 1.68 MB

1 Like
12

It is the bottom line of the display that doesn’t work perhaps it doesn’t know the run length? Then the screen swaps corrupt if further.