Replacing internals of a Psion Organiser II to include a Graphic LCD
- MCP23017 & MCP23S17 Product Pages
- Microchip MCP23017
- Microchip MCP23S17
- Adafruit MCP23017
- MCP23017 & MCP23S17 Datasheets
- Microchip (2016)
- Adafruit (Microchip 2007)
There is not much here for this project and it has been a while since I worked on the project. I don't know when I will get back to it. I did see a really cool project today along these same lines using an OLED display. The project is on YouTube by user A Menadue.
I may abandon this project and try to do what A Menadue is doing as he has been able to do a great deal more work on this and in my opinion done a far better job that I would. I have been debating on attempting to recreate what Psion did or doing something different to take advantage of additional I/O and the graphics display.
The first video of A Menadue's project is at https://youtu.be/v2YWStDrQIs.
GitHub Pages - Currently blank.
The display that I've used is a Crystalfontz LCD CFAG12232D-YYH-VA. I also used an Arduino Micro for the microcontroller to run the code. I was planning on using a Raspberry Pi Zero W but with Raspberry Pi Pico/RP2040 and an ESP32 seem link a better option.
Here are some photos taken of the sample code running the display.
