mudhorn/meshtastic
1
0
Fork 0
mirror of https://github.com/meshtastic/meshtastic.git synced 2024-12-26 06:04:22 -08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Additional info on the pin ordering for OLEDs

Browse source
This commit is contained in:
Nestpebble 2022-12-19 16:51:08 +00:00 committed by GitHub
parent d1989e1556
commit bd4c4ace19
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
docs/hardware/devices/rak/screens.mdx
View file

@ -28,7 +28,8 @@ The [RAK1921 OLED display](https://store.rakwireless.com/products/rak1921-oled-d
This item requires soldering.
Further information on the RAK1921 can be found on the [RAK Documentation Center](https://docs.rakwireless.com/Product-Categories/WisBlock/RAK1921/Overview/#product-description).
Similar modules are widely available from other suppliers, but do check the boards as some have the VDD and GND pins swapped round.
Similar modules are widely available from other suppliers, but do check the boards as some have the VDD and GND pins swapped round. This will prevent directly soldering the display to the baseboard. The preferred order is VDD, GND, SCL, SDA.
If pin ordering on the OLED board are swapped, there are some tricks to allow either reconfiguring the pins of the OLED via soldered jumpers, or by carefully soldering wire for those pins that are out-of-sequence. The final option is to use longer wires between the board and display, which permits re-ordering the wires as required.
[<img alt="0.96 inch OLED display" src="/img/hardware/screen.png" style={{zoom:'25%'}} />](/img/hardware/screen.png)