a set of commands allowing a host computer to talk to a Bluetooth interface. That interface doesn’t have to be special, and [Dakhnod] is here to show us that it can be done with an ESP32 ...

The PCB holds an ESP32-PICO-D4 which is operating as a standard Bluetooth HID controller for maximum compatibility with modern systems. Control signals are pulled directly from the controller’s ...

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 ...

The open source handheld combines a display and physical keyboard with a RISC-V processor, support for wireless protocols including WiFi, Bluetooth ... a 400 MHz ESP32-P4 dual-core microcontroller ...