Fire Alarm Detector
Note: also works for water leak detector
Featuring:
- fire alarm audio signature detection using FFT and pattern matching
- exec' a custom script if the alarm is detected - example pagerduty & picture-snap-n-upload scripts provided
- an optional server to handle the uploaded pictures (with automatic https and basic auth)
Motivation
I wanted a local solution running on a Raspberry Pi Zero, and not constantly pushing data to a server, surely it's doable with simple FFTs and pattern matching !
Optionally, being able to alert with pagerduty, or take pictures when the alarm is detected (server code included).
Usage
$ cd detect $ go mod tidy $ go build $ ./detect --help Usage of ./detect: -beeps int How many beeps to alert (default 3) -device string Target device. If empty, will list devices. -duration duration Duration of a beep (default 400ms) -frequency int Target frequency in Hz (default 3500) -script string Script to exec when an alarm is detected -threshold string Audio target threshold (default "7") $ ./detect -device="Logitech StreamCam: USB Audio (hw:1,0)" [play alarm.wav] 2024-04-07 13:41:47 -- alarm detected!
Feel free to explore the codebase, this is more of a glorified (but fuctioning !) script :).
A pre-compiled binary for Raspberry Pi is provided in the release section. It only has a dependency on portaudio19-dev.
The two scripts have dependencies on curl, and ffmpeg for the picture uploading script.