Sounder

The sounder agent needs to run on a Raspberry Pi, or any computer with a sound card.

Software

Install

Assuming a fresh install of Rasbian Lite on a Raspberry Pi:

1. Run install.sh from the repo. curl https://raw.githubusercontent.com/Open-School-Bell/sounder/refs/heads/main/install.sh | sh
2. Create a sounder in the controller.
3. Run the sounders enroll command on the sounder.
4. Reboot the Pi.

Hardware

Suggested Hardware:

Part	About	Link
Raspberry Pi 5	Lowest spec is appropriate for the agent.	https://thepihut.com/products/raspberry-pi-5
Raspberry Pi DAC+	The Pi 5 doesn’t have a headphone out, but even with a Pi4 it would be ideal to use a DAC Hat to get better audio quality.	https://thepihut.com/products/iqaudio-dac
Raspberry Pi PSU	Always use a proper USB power supply for your Pi.	https://thepihut.com/products/raspberry-pi-27w-usb-c-power-supply
32GB SD Card	The agent stores nothing on the SD card, so 32GB is plenty.	https://thepihut.com/products/noobs-preinstalled-sd-card