Wiring an e-ink Display to the iPad RPi4
Documentation for the unit's here
I'm using this unit.
The PI's GPIO pins numerate left to right, top to bottom with the microSD on top.
| Module | Color | Name | Pi Pin |
|---|---|---|---|
| VCC | Gray | 3.3V | 17 |
| GND | Brown | GND | 20 |
| DIN | Blue | MOSI | 19 |
| CLK | Yellow | SCLK | 23 |
| CS | Orange | CE0 | 24 |
| DC | Green | GPIO 25 | 22 |
| RST | White | GPIO 17 | 11 |
| BUSY | Purple | GPIO 24 | 18 |
The Waveshare Gitlab Library works well. I wrote a shell script to check my wifi and SSID and update the display if it changes. The script also use BASH's "trap" to clear the display when the box shuts down.
Next up is getting kismet scanning. I see the purchase of a wifi dongle in my future.