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go-hidproxy

Proxies Bluetooth keyboards and mouse as HID devices (eg. with Raspberry Zero Pi W)

Build

Requires libudev-dev package (sudo apt install libudev-dev).

Build with Go 1.20+:

go install github.com/rosmo/go-hidproxy/cmd/go-hidproxy@latest
sudo cp ~/go/bin/go-hidproxy /usr/bin/go-hidproxy

Or even with a more complete example:

wget https://go.dev/dl/go1.22.2.linux-arm64.tar.gz
sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.22.2.linux-arm64.tar.gz
export PATH=$PATH:/usr/local/go/bin
sudo apt-get install -y libudev-dev
go install github.com/rosmo/go-hidproxy/cmd/go-hidproxy@latest
sudo cp ~/go/bin/go-hidproxy /usr/bin/go-hidproxy
sudo go-hidproxy

Install

  • Build the binary
  • Copy binary to /usr/sbin/go-hidproxy
  • Install systemd unit file to /etc/systemd/system
  • Reload daemons: sudo systemctl daemon-reload
  • Enable hidproxy: sudo systemctl enable hidproxy
  • (Optionally) Start hidproxy: sudo systemctl start hidproxy

Raspberry Pi Zero W setup

I used a pretty standard Raspbian image:

Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 10 (buster)
Release:        10
Codename:       buster

You'll need to setup /boot/config.txt with:

dtoverlay=dwc2

In /etc/modules you should have:

dwc2
libcomposite
evdev

Pair Bluetooth keyboard/mouse

One time pairing:

# sudo bluetoothctl
> discoverable on
> pairable on
> agent NoInputNoOutput
> default-agent
> scan on
> pair aa:bb:cc:dd:ee:ff
> connect aa:bb:cc:dd:ee:ff
> trust aa:bb:cc:dd:ee:ff

Tested with

  • TEX Shinobi keyboard / Trackpoint combo
  • Razer Deathadder V2 Pro
  • Microsoft Designer Compact Keyboard