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The Adafruit MagTag combines the new ESP32-S2 wireless module and a 2.9" grayscale E-Ink display to make a low-power IoT display that can show data on its screen even when power is removed! The ESP32-S2 is great because it builds on the years of code and support for the ESP32 and also adds native USB support so you can use this board with Arduino or CircuitPython!
And of course, the Mag in MagTag stands for magnetic. We include an acrylic and hardware kit, as well as 4 magnetic feet with M3 screws. Originally they're designed for RGB Matrices, but they'll do an excellent job here as well. Screw on the feet, and you can attach this display to a metallic shelf, fridge, or bench.
The MagTag has battery recharging support, and with deep sleep, it can run for a few weeks between charges. Of course, you can also run it tethered over USB C.
Here's a Starter Kit for all the parts you need to get started. Now you've got no excuse for not digging in! Makes for a great workshop pack, hackerspace kit, or gift.