Emulating A Bluetooth Keyboard With The ESP32 | Hackaday
ESP8266 to turn on the LED's on a demo gaming keyboard and mouse : r/arduino
Adafruit 3601 Mini Bluetooth Keyboard ? Black Arduino, Electronics and Robotics Electan, OnLine Store
Price history & Review on SeenDa Mini Bluetooth Keyboard with Touchpad for Smart TV Projector Compatible with Android iOS Windows | AliExpress Seller - seenDa Official Store | Alitools.io
Homey ESP32 Bluetooth Keyboard firmware (can lock / unlock iPad remotely) Dev. review needed - Apps - Homey Community Forum