Awesome
Convert USB Mouse to Bluetooth LE
Hardware
- Adafruit Trinket M0
- USB OTG to host cable or adapter
- Adafruit Feather nRF52840
- USB power bank, 5V out
- USB mouse
| Trinket M0 | nRF52840 |
|---|---|
| GND | GND |
| USB | USB |
| TX (4) | RX |
Software
Trinket M0
This programs to the Trinket M0 to act as a USB host for the mouse. USB mouse HID reports are send out the UART TX (4) pin. The source code is at https://github.com/gdsports/usbhostcopro.
Feather nRF52840
USBMSEBLE receives HID reports via its UART TX and sends the reports out the BLE mouse module.
Firmware
The firmware directory has UF2 files for the Trinket M0 and the nRF52840 Express so it is not necessary to build the firmware from source code.
Double click on the Trinket M0 reset button. When the TRINKETBOOT USB drive appears, drag and drop the file MSEADVUARTUSBH.ino.trinket_m0.uf2 on the the drive.
Double click on the nRF52840 Express reset button. When the FTHR840BOOT USB drive appears, drag and drop the file USBMSEBLE.ino.feather_nrf52840_express.hex.uf2 on the the drive.