I'm trying to connect 16 x 2 LCD with Omega2+ but not sure how to display text in it. The LCD is working perfectly with Arduino. The connection goes like this:

Omega Expansion <--> LCD

GND <--> VSS
5V <--> VDD
GND <--> K
5V <--> A
RS <--> 18
EN <--> 19
D4 <--> 0
D5 <--> 1
D6 <--> 6
D7 <--> 7

Thanks,

Puneet Chandiok

I 've connected my OLED as:

Onion Expansion Pin OLED Pin

3.3V <-> 3.3V
GND <-> GND
20 <-> SCL
21 <-> SDA

Now how can I write text or display pic on the OLED either by using I2C / GPIO.

Please suggest.

Thanks in advance.

Puneet Chandiok

I've installed Node-Red successfully, but when I execute it doesn't show any palette and terminates the program by saying low memory. Even though I have increased the swap file to 256MB.

There seems to be some problem when I try to connect to upload the sketch to Arduino Dock. It shows some error in board.txt. I've added the line in board.txt as mentioned in docs.onion.io but it shows after the added line.

And, when I see the port in Arduino IDE, the port option is also disabled.

Any suggestions how to rectify it.

I'm trying to connect a third party LCD display to Omega2+, its not even lighting up. Any ideas? Can anybody provide a circuit connection diagram for the same?

Any python modules available for the same?

Thanks