Bluetooth HID using just an ESP32 (inc Bluetooth macro keypad)
Brian Lough
In this video we are going to take a look at using the built-in Bluetooth of the ESP32 to emulate a Bluetooth Keyboard.
With some ESP32 development boards starting at less than $5 delivered, this is a really inexpensive and simple way to create wireless custom keyboards such as a Macro keypad that could be used for controlling scenes in OBS.
We’ll first look at how to use the ESP32 HID keyboard library and then I will show you how I used this to build a battery powered Bluetooth Macro Keypad.
Software used:
ESP32-BLE Keyboard library: https://github.com/T-vK/ESP32-BLE-Keyboard
Code for the macro keypad (inc new Bluetooth one): https://github.com/witnessmenow/arduino-switcheroonie
Hardware used:
D1 Mini ESP32 Board*: https://s.click.aliexpress.com/e/_rujrNG
TinyPico ESP32 Board: https://www.tinypico.com/
44 Matrix Keypad - http://s.click.aliexpress.com/e/nKw2LcCu
USB Bluetooth 4.0 Dongle*: Amazon.co.uk: https://amzn.to/2uuZovu Amazon.com: https://amzn.to/39oGvtg
Amazon.de: https://amzn.to/2S9DS8C
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