Recently I realized my local grocery store replaced traditional price tags with electronic eink (epaper) price tags / shelf labels. I found out that you can easily buy the same ones from ebay, and I was able to reprogram / hack them.
These devices can be used as cheap Arduino EInk Displays, and you can easily program these with usbTTL adapter, or any Arduino board.

In this video, I will show you how you can use them for everyday needs.

The brand of the epaper display I reprogram is Hanshow, and the model is Stellar.

Here are the links which is mentioned in the video:

The Github page for the project:
https://github.com/MakersFunDuck/Hans...



Other projects you might think interesting:

https://github.com/atc1441/ATC_TLSR_P...
https://github.com/rbaron/pricetagpr...



PS. I made the doom part of the video with the tool that I explained. I only the modified code to take a picture at the end of one loop. I made a timelapse video to remove the screen refresh artifacts.





▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 Intro & summary
0:50 Tips to get them for free
1:38 Doom!
4:42 Start of the projects
4:42 Subscriber counter
6:09 Weather forecast
7:09 Home assistant
9:37 Internet modem monitor
10:36 Bitcoin Stock tracker
12:00 Post it notes viewer (Google keep)
13:22 Morning routine viewer (Google Calendar)
14:13 Garbage collection dates viewer
14:48 Troubleshooting