In my area, multiple towns use the same radio frequency to dispatch their fire departments. To discriminate between towns you must look at the tone transmitted right before the dispatch. This project lets me process the tone and determine which town it is
I’m on the volunteer fire dept. in my town and as such, like to keep tabs on when neighboring towns are dispatched. I came up with the idea to make a large map of my area and put an LED in each town that would light up when they get called out. To do this though i would have to find someway to discriminate between towns, and since multiple towns use the same radio frequency, I couldn’t just cross-reference the frequency with the town. Fortunately though every town has a unique tone sent out just prior to the dispatch. It is this tone that i need to look at, process and then match up with its town.
Seeing as this is meant to run constantly , a micro-contoller is the clear choice, and what better than an arduino. Unfortunately, Arduinos don’t have the capability to process a sine wave by themselves, so i needed to give it a little help…Related