Web browser for the Raspberry Pi that streams to addressable LEDs, motors and other outputs by sampling the display at any given 2D location. It is controlled wirelessly over a web interface. For videos of it in action, see here and here.

Supported outputs and inputs

• UART (Arduino Uno video, example)
• SPI (DotStar/APA102 image, example)
• PWM (DC motor video, image, example)
• I2C (Arduino Nano Every video, example)
• Bluetooth (BLE video, image, example)
• WebAudio
• WebBluetooth (IMU video, example)
• WebRTC (Pose detection video, example)

Compile and install

• Connect a terminal to headless device running Raspberry Pi OS Lite: ssh pi@<ip address>.

• Run these commands to download the repository and dependencies, build, install and add to start up.

git clone --recurse-submodules -j8 https://github.com/itsdsk/ledpage.git
cd ./ledpage
chmod +x install.sh
./install.sh

• Follow the final instructions at the end of install.sh.

Configure the display topology

• Save a list of XY coordinates in the format described by examples/README.md.

Open the web UI

• Nagivate to http://raspberrypi.local from a device on the same local network.

Update the configuration

• Go to the setup page of the web UI: http://raspberrypi.local/setup.

• Copy your configuration JSON into the text input.

• Click update.

• Reboot the Pi.