2.7inch E-Ink Display HAT,264x176 Pixel Black,White Two-Color 3.3V/5V E-Paper Screen LCD for Raspberry Pi 4B/3B+/3B/2B/Zero/Zero W/Zero WH and Jetson Nano SPI Interface Support Full Refresh

The E- Ink display is being pared with a mini Raspberry pi, to be a wrist mounted data display.The great thing about the display it it retains that data sent to it. So if the battery dies or out of signal range. The last data displayed will still be present on the display.Still working out some bugs in my software, but sample code displayed just fine on the display.I recommend it to anyone that doesn’t need a constant display and only need a refresh when needed.

The Waveshare 2.7inch e-Paper Module is an excellent choice for anyone looking to add a high-quality e-paper display to their projects. I recently used this module for my Pwnagotchi project and was impressed with its performance and reliability.The display is sharp and clear, and the e-paper technology allows for excellent contrast and visibility in a variety of lighting conditions. Additionally, the low power consumption of e-paper technology makes this module an ideal choice for projects where battery life is a concern.One downside of this module, however, is the difficulty of finding and installing drivers for use with other projects. While the driver installation process can be a bit tricky, once set up, the module works like a charm.Overall, I would highly recommend the Waveshare 2.7inch e-Paper Module to anyone looking to add an e-paper display to their projects. The quality of the display is excellent, and the low power consumption makes it an ideal choice for battery-powered projects. However, users should be prepared to spend some time troubleshooting the driver installation process.

So if you’re using Python in a Raspberry Pi project, you’ll see two driver options in the Waveshare files- epd2in7.py and epd2in7_V2.py. Be sure to use the “V2”.

The media could not be loaded. It's fun to work with this e-paper. The documents are self explanatory for simple prints. Its super easy especially to create displays with only text. I was able to set it up with a custom list of details like cpu temp, ram usage, battery life etc in an hour. The Waveshare Github repo has lots of examples to explore and you can customize their scripts to get some amazing results.I wish the refresh rate was a bit better but thats all we get with less expensive and non power hungry epapers like these.I am still figuring out few things like creating navigatable menu using the buttons provided.In short this epaper is fun, easy and less expensive.

The screen is a nice size and the buttons are a nice addition, but this e-ink display can not do partial refresh. If you have something that changes frequently the screen will flash constantly. If what you are going to display is not going to change often, this will not be a problem.

Pretty fun to mess with. I hacked the driver software in Python to support partial refresh. This causes burn-in on the display unfortunately, I permanently have to use partial refresh and refresh the image every few seconds.That said, if you use this, it will take about 3 seconds to refresh the screen under normal mode, but it will look a lot better. It can also do four shades of gray. Definitely fun to monkey around with. I found it hard to use any other GPIO device while using this in the SPI interface. YMMVIf you can see in my screenshot, the weather app was built to be used in black and white only, I built it to use on the screen. A regular color image doesn't translate well. But you can have it print in four color grayscale or black and white, the PIL image library will downsample with dithering.

I love this e-paper screen. Programming for it is super fun in Python, though I couldn't get the C library to work. Definitely worth getting if you want a good solid e-paper display for your Pi.