- Raspberry Pi Zero W with soldered pin headers.
- 4GB (or larger) microSD card
- Optional: case for the Pi Zero W
- Waveshare 2.13inch E-Ink display HAT (monochrome)
If you don't follow the instructions for setting up a raspberry pi headless, you will need to connect a keyboard and screen in order to enable ssh and enter your wifi details. For this, you will need a USB OTG cable and mini-HDMI cable. Some Pi Zero W kits come with these cables if you don't have them.
Waveshare makes a few sizes of e-paper HAT displays. The 2.13inch is the exact size of the Raspberry Pi Zero W. The monochrome version has a very quick refresh rate. Unfortunately, the 2-color versions take several seconds to redraw and I opted not to use those. HAT devices plug directly into the pin header on the Pi, creating a nice, compact device.