A simple IoT button which can run for years on batteries and requires zero coding.
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Image showing wiring relates to the following:
1. Cricket WiFi module
2. Wakeup trigger from button
3. GND to Cricket
4. VCC to Cricket
5. VCC from battery to button and Cricket(4). I solder the three cables to a thin cut strip of veroboard and heat shrink it, i've got no idea if this is even a good way to do it, it works anyway. I've also used Dupont connectors and headers so I can easily repurpose the module in the future.
Find the centre of the lid and drill through with a 16mm bit. Insert the button and screw the backing nut on.
I've used jumper connectors and header pins so i can easily repurpose the module in the future.
( 1 ) Solder the 6 header pins to the Cricket. You only need 3 pins but for future proofing i put them all on.
( 2 ) Attach a jumper to the WAKE_UP pin on the Cricket and solder the other end to one side of the button.
( 3 ) Solder an insulate a jumper wire to the ground of the battery and attach it to GND pin on the Cricket
TBC
Phil Cole
0xCAFEAFFE
facelessloser
Robin Hartley
Hagen Fritsch