OLED Not working on Plus
I received my Omega 2S+, finally got it updated and functioning, now the OLED does not function. I have tried 6 different OLED modules and none of them seem to work, but if I plug them back into an Omega 2+ they work fine. I tried the OLED app in the Legacy console, it also complains "Unable to communicate with selected device".
My C app reports:
onion-i2c:: write issue for register 0x80, errno is 6: No such device or address
Did I miss something? I'm on the latest firmware Version: 0.3.1 b211
@crispyoz Are you using an Onion OLED Expansion
or a third party OLED module?
If you're using the Onion OLED Expansion, have you tried using the
oled-expcommand line utility?
More info in
oled-expcan be found here.
@crispyoz If you are you using a genuine Onion OLED Expansion then connect
pin3on its Expansion Header
and connect the GND, 3.3V, SDA, SCL pins to the GND, 3.3V, SDA, SCL pins of Omega2S+ respectively.
OLED Expansion Header pinout (top view) +-----+ GND | 1 2| 3.3V | 3 4| VDD25 / Omega2(+) GPIO11 | 5 6| | 7 8| | 9 10| |11 12| |13 14| |15 16| |17 18| |19 20| |21 22| SCL GPIO4 Omega2(+) |23 24| SDA GPIO5 Omega2(+) |25 26| GND |27 28| GND |29 30| 3.3V +-----+
Do not forget to remove the pin3-pin4 short circuitif you want to plug the Oled Expansion to any genuine Onion Omega Expansion Header directly because Omega2(+) may be damaged if you set GPIO11 to Low.
Thanks everyone for the replies. I have been using the genuine Onion OLED. I found he issue, the connector seems to have an issue. If I jiggle it, it will start working, then stop working. I tested on 3 different OLEDs and I get the same behaviour so it's definitely my 2S+. I have more on order so hopefully I'll be ok once they arrive.