ESP-01 Mouse Trap
When you live in the country and have multiple buildings to deal with, there's always the threat of rodent attack, now you can leave a trap and not worry about checking it all the time. This uses a micro switch I got on Amazon, I've included the nut plate, I used 2-56 screws, but you could use m2.5 as well just drill the holes to fit. The battery/ESP holder started out life as https://www.thingiverse.com/thing:535688, (thank you) with some modifications, there is a box on the bottom corner that gets removed to fit trap frame. I glued the whole thing together with PVC pipe glue. I made 4 of these all different colors so I can track where they are and which one has tripped. The code is very simple, just contact IFTTT with your account and trigger your applet and go to deep sleep with no wake ESP.deepSleep (0), I discovered a flaw in the ESP mounting, will work fine if its in the house in a second floor or on a shelf, but in my shop having the antenna against the concrete floor didn't work, if this is your situation print the EspHolder file instead of nutPlate, (see black one).
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