So I managed to rotate the screen 180 degrees but getting the text to read left to right is giving me a headache. Text displaying backwards now from right to left mirrored but bitmaps etc display correctly. Looking at other arduino/esp libraries i followed the same init sequence but no luck:
Onion sent me a new OLED, and I'm happy to report that it is working just fine. I didn't change anything else.
If I get time, I'll try to debug whats wrong with the original one. Suggestions welcome.
I did notice that when with the new OLED, when I do
% oled-exp -v
So the value changed from 0xff to 0x03. Not sure if that matters.
Thanks to everyone who tried to help out. Appreciate that.
Try running ls -ltr /tmp and finding a file with a name like /tmp/tmp.<some hash> for example: /tmp/tmp.iekIIJ
The latest one will hold the image data, move that to your /root directory and you'll have the oled image data of the last image displayed!
I've tried both command line and web based but Oled is not displaying anything.
I have an Omega2+ with Firmware 0.1.10 b160
I have tried the following but with no success ...
oled-exp power on
oled-exp write "hello"
Also, 'opkg list | grep oled' shows that Oled driver is installed.
Thanks for that, completely missed it. I've tried plugging it in directly, non-directly (stacked on relay board) and even just using power and data lines using a bread board and it wouldn't work. Waited a while and stacked it again and now it's working. No idea what changed, pretty sure I did my last firmware update before this post. @Luciano-S. said in OLED expansion doesn't display anything:
Hi there! If you have a hardware or software issue, please see these guidelines first. A list of previously resolved issues is available here.
See top of page!
Looks like your connection to Onion Community was lost, please wait while we try to reconnect.