The build relies on an ESP32-C3, which drives the display and fetches new images daily over WiFi. Thanks to the e-Ink screen, which uses zero power when not updating, the whole setup runs off two ...

[publidave] wanted a simple wireless display for a bluetooth cycling cadence sensor, and soon found himself deep down the rabbit hole of Micropython and Bluetooth Low Energy on the ESP32.

As Hackaday revealed, this one comes with an E Ink display, a secondary OLED panel ... The device comes powered by an ESP32-S3 processor and supports Wi-Fi 4 and Bluetooth 4.2. The larger E ...

But this model is powered by a modern, low-power ESP32-S3 processor (with two low-power Xtensa LX7 32-bit microprocessors running at 240 MHz and support for WiFi 4 and Bluetooth 4.2 LE.