Remember the good old PDAs or Personal Digital Assistants that people used for taking notes, keeping schedules, keeping a tab ...

the ESP32 needs to find the sensor, connect to it, select the right service, and listen for the notifications containing the data. The data is then converted to RPM and displayed on a small OLED ...

So I can definitely see the appeal of the simple PDA that Ashtf is developing. It’s a pocket-sized device with an E Ink display, a thumb keyboard, and simple software that’s currently designed for ...

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 ...