Comment by gigel82
2 years ago
The link was entirely random to show a similar mass produced product, I didn't do much research.
You can search for NFC ones on the same website, they're a few bucks more.
There are also Bluetooth variants which is more friendly to hacking at home (update over the air from farther away) but those look pricier.
Does anybody here know a Bluetooth (ideally) or NFC one? Preferably with a known protocol that has open source software... at least a known/open protocol to set the displays if not end-to-end open. I have wanted to play with one of these but haven't been able to find one that is easy to hack on.
I'd really like a $10-20 epaper display that I could update wirelessly on very low power, there are so many fun projects that could be done with that. There are a few dev boards that almost hit that price point but software support is really bad in my experience.
There's a pretty good set of videos here showing how to hack them: https://youtu.be/S44NSr37eoo
Thanks for this video!
It shows a nice layout with 3D-printed holder, pogo-pins, ESP32 Lolin as programmer, with CC2531 RF dongle as the access point.