Arduino Bluetooth Keyboard Adapter
Build Video (YouTube): https://youtu.be/L7EqKJ02lK4
Made an Arduino Bluetooth Keyboard Adapter, it's awesome for traveling (assuming TSA checkpoint let you through, LOL). I can connect my mechanical keyboards to iPhone, smart TV, and tablets.
Convert a USB keyboard to work over BLUETOOTH!
PARTS:
- Arduino Pro Mini 3.3V
- USB Host Shield (mini)
- FT232RL FTDI Serial Adapter
- HC-05, HC-06, or RN-42
- Adafruit PowerBoost 500C
- 2500mAh Lithium Ion Polymer
- SPST/SPDT Switches
- Altoids Tin
I modified the Power Reduction Register (PRR) to get a bit more battery saving.
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Evan Kale (EvanKale91) https://www.youtube.com/user/EvanKale91
Juan Garcia (DastardlyLabs) https://www.youtube.com/channel/UCIAf9pMDPJ-5edlpIpP7BLQ
mitxela (mitxela.com) https://mitxela.com/projects/bluetooth_hid_gamepad