3 A small device that reads USB keyboard input and passes it on over Bluetooth LE HID.
5 ![Picture of Adapter](https://i.imgur.com/O3VwBBJ.png)
9 The hardware is relatively easy to assemble. Just follow the schematic and don't forget to [cut the VBUS jumper](https://www.pjrc.com/teensy/td_libs_USBHostShield_4a.jpg).
12 ![Schematic](https://i.imgur.com/s1Ia9We.png)
15 * [Adafruit Feather 32u4 Bluefruit LE](https://www.adafruit.com/product/2829)
16 * [USB Host Mini](https://www.circuitsathome.com/arduino_usb_host_shield_projects/)
17 * [Pololu 5V Step-Up Voltage Regulator U3V12F5](https://www.pololu.com/product/2115)
18 * [Lithium Ion Battery - 3.7v 2000mAh](https://www.adafruit.com/product/2011)
19 * Some sort of switch to be able to turn it off
25 make converter-usb_usb-ble
29 make converter-usb_usb-ble-avrdude