Audiomoth with LoRa

The configuration app gives the energy consumption depending on the configuration used. For long duration deployments we use Energizer Lithium Ultimate batteries but standard Alkaline batteries are pretty good as well. For the long term deployments in Belize we used large 6V lantern batteries, which with custom firmware running the gunshot detection algorithm, meant we could listen (not record) for 12 hours each day, for one year.

I suspect you could do chainsaws in simple microcontrollers. We’ve used the Edge Impulse platform to develop small models for some bird calls and have a current project exploring the deployment of these models on AudioMoth.

The challenge is often the false positive rate which has to be very low for a live alerting system. Less so for a system that is using this approach to save energy by not recording sounds that aren’t of interest.

@chrisgnicholas Hmm. APRS would need a lot of power and there are legal restrictions for the usage of amateur radio spectrum for non amateur uses. The advantage of LoRa is low power anyway. LoRa is also much more resistant to jamming as far as I know.