The ESticky is a pocket-sized persistent digital notepad built around a 2.9-inch e-paper display and an ESP32-based microcontroller. The e-paper panel holds information continuously without drawing power between updates, enabling always-on reminders that outlast phone screens. A rechargeable battery and a simple switch make the unit portable and easy to place on a fridge, desk, or nightstand. Electronics and a battery are integrated into a compact 3D-printed case sized for handheld use. The design favors common hobbyist components and straightforward assembly, offering a reusable, low-power alternative to disposable sticky notes.
Remember that brilliant idea you jotted down on a sticky note last week? No? That's probably because it's currently stuck to the bottom of your shoe or lost in the clutter of cables behind your desk because the glue wore off one fine day. Enter ESticky, a clever little gadget that's bringing the humble Post-It into the digital age. This DIY project transforms a low-power e-paper display into a persistent digital notepad that keeps your thoughts, lists, and reminders visible
This little gadget looks like someone shrunk down a Kindle and decided it should live permanently on your desk as your personal reminder system. The creator, who goes by gokux, basically took everything annoying about traditional sticky notes and solved it with a Seeed Studio XIAO ESP32C3 microcontroller, a battery, and a simple switch, all housed in a 3D-printed case you can hold in your palm.
The device is built around a 2.9-inch e-paper display, the same kind of tech you'll find in a Kindle or those price tags at fancy supermarkets that never seem to have their act together. The brains behind the operation is a tiny ESP32 microcontroller, which, for the non-hackers in the room, is like a little digital butler quietly handling your reminders. It runs off a rechargeable battery, so you can move it from fridge to desk to nightstand without hunting for a power cord.
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