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A powerful, Wi-Fi enabled ESP32 microcontroller makes this six-inch e-paper display – recycled from a Kindle e-reader – incredibly easy to control. Just plug in a USB cable, open Arduino IDE, and change the contents of the screen with few lines of code!
The best thing about e-paper is that it draws power only when changing the contents of the screen and is therefore extremely energy efficient. A single battery will keep you going for ages. Beyond that, the high resolution and daytime readability of e-paper make it uniquely suited to many applications.