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

We’ve looked at the WROOM-DA module before. It’s an ESP32 with two antennas, and [Andreas Spiess] says it is the ugliest ESP32 he’s ever seen. But beauty is only skin deep, after all.

In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the wireless connection between units ...