HomeBridge on raspberry pi

Install Homebridge

Method 1: Install HomeBridge ISO directly

github address：https://github.com/homebridge/homebridge-raspbian-image/releases

Method 2: Install manually

In Terminal, execute the following：

curl -sL https://deb.nodesource.com/setup_12.x | sudo bash - 
# setup repo

sudo apt-get install -y nodejs gcc g++ make python
# You may execute `sudo apt-get upgrade` before this step
# `-y` means to ignore the confirmation

node -v
# see the nodejs version you have just installed

sudo npm i -g npm
# upgrade npm

sudo npm install -g --unsafe-perm homebridge homebridge-config-ui-x
# Add --registry https://registry.npm.taobao.org to use 淘宝npm镜像 if its too slow

sudo hb-service install --user homebridge
# hb-service can set homebridge as a service, 
# and can start automatically at system startup.
# It will create a user 'homebridge' to run the service.
# The config file is located at /var/lib/homebridge/config.json
# Remember the ip address displayed;
# default username 'admin', passwd 'admin'

Control the power supply of USB port using HomeKit

In Terminal, install ‘uhubctl’

sudo apt install libusb-1.0-0-dev
git clone https://github.com/mvp/uhubctl
cd uhubctl
make
sudo make install

Command to control the power supply:

sudo uhubctl -l 1-1 -p 2 -a on  # turn power on
sudo uhubctl -l 1-1 -p 2 -a off # turn power off

Then we need to solve the permission problem by configuring ‘udev USB’ permission. (Otherwise, we have to run uhubctl as root, but by default HomeBridge service will not run as root.)

1. Run sudo uhubctl, see the VID of the port we need to control. (Or find it in uhubctl docs.

2. Add the following udev rule to file /etc/udev/rules.d/52-usb.rules. Don’t forget to replace the VID.

   • On raspi 3B+ :

     SUBSYSTEM=="usb", ATTR{idVendor}=="0424", MODE="0666"

   • On raspi 4 (one for USB2 and one for USB3) :

     SUBSYSTEM=="usb", ATTR{idVendor}=="2109", MODE="0666"
     SUBSYSTEM=="usb", ATTR{idVendor}=="1d6b", MODE="0666"

3. To let udev rules function correctly, execute:

   sudo udevadm trigger --attr-match=subsystem=usb

4. Test the following command without using sudo to check if you can control USB power supply:

   uhubctl -l 1-1 -p 2 -a on  # turn power on
   uhubctl -l 1-1 -p 2 -a off # turn power off

Then, install plugin ‘Script2’ in HomeBridge

Enter config and add the following:

"accessories": [
    {
        "accessory": "Script2",
        "name": "LED Light",
        "on": "uhubctl -l 1-1 -p 2 -a on",
        "off": "uhubctl -l 1-1 -p 2 -a off",
        "state": "uhubctl -l 1-1 -p 2 2>/dev/null | grep -c 'power'",
        "on_value": "1"
    }
]

Get the token of MJ (米家) devices

https://www.home-assistant.io/integrations/xiaomi_miio#xiaomi-cloud-tokens-extractor-1

github address： https://github.com/PiotrMachowski/Xiaomi-cloud-tokens-extractor/blob/master

HomeKit Camera (No success)

bilibili video demo：

https://b23.tv/vu977y

把吃灰的树莓派利用起来，DIY一个支持原生HomeKit的摄像头。还可以自定义分辨率，码率，帧率。如果家里有家庭中枢，还可以进行外网访问。
https://bit.ly/2VTjtZJ
http://homebridge.local
https://bit.ly/2VT0cIn
https://bit.ly/3jTC8wR

Github repo address memtioned:

https://github.com/Sunoo/homebridge-camera-ffmpeg

https://sunoo.github.io/homebridge-camera-ffmpeg/configs/Raspberry-Pi-with-Camera-Module.html

Step1. Install HomeBridge system

Start raspi (no need to connect keyboard, mouse, HDMI port), wait a while and connect the wifi named HomeBridge WIFI Setup after it appears. Enter the wifi keyboard (If raspi fails to detect your wifi, just wait a while and try again).

The default username and password (if you want to ssh connect to your pi) is pi and raspberry

2 Install HomeBridge Plugin Camera FFMpeg

3 Create a service

sudo apt install v4l2loopback-dkms

Edit /boot/config.txt and change gpu_mem=128 to gpu_mem=256 (or use raspi-config)

Create the file /etc/systemd/system/camera-loopback.service

[Unit]
Description=Set up loopback cameras

[Service]
ExecStartPre=/sbin/modprobe v4l2loopback devices=2
ExecStart=/usr/local/bin/ffmpeg -f video4linux2 -input_format yuv420p -video_size 1280x720 -i /dev/video0 -codec copy -f v4l2 /dev/video1
Restart=always
RestartSec=2

[Install]
WantedBy=default.target

Activate with sudo systemctl enable camera-loopback

and start with sudo systemctl start camera-loopback

4 Edit config.json of HomeBridge

Add to the platforms:

{
    "name": "Camera FFmpeg",
    "cameras": [
        {
            "name": "Raspberry Pi Camera",
            "manufacturer": "Edddd",
            "model": "RPI HomeKit Camera",
            "serialNumber": "12345678",
            "unbridge": true,
            "videoConfig": {
                "source": "-f video4linux2 -i /dev/video1",
                "maxStreams": 1,
                "maxWidth": 1280,
                "maxHeight": 720,
                "maxFPS": 30,
                "maxBitrate": 1000,
                "forceMax": true,
                "vcodec": "h264_omx"
            }
        }
    ],
    "platform": "Camera-ffmpeg"
}