Hi,
I'm trying to use my LCD screen with OpenTx Firmware.
The screen light turns on but does not show anything.
The screen should be set for parallel mode, I think I may need to jumper something...
I attached a picture of my LCD screen.
Any suggestion?
Someone asked a similar question a couple of weeks ago.
I guess he didn't want, or no longer needed, to discuss.
https://forum.arduino.cc/index.php?topic=693575.0
The JPG in #0 shows a ST7920 module.
It is much easier to use in SPI mode (PSB=0)
But you can use in parallel mode (PSB=1) if you are a masochist.
U8g2lib supports both SPI and Parallel interface.
Most of these modules just work without connecting VO pin (3) or VOUT pin (18)
They need VCC = 5V
David.
