In this busy modern world, it’s hard to keep on top of everything without focus and discipline. Sometimes I need time to get on with a task, and to avoid distractions I may silence my notifications and put on noise-cancelling headphones.
This means colleagues can’t get my attention even when it matters most...like when I’m busy soldering in the workshop and my remote-working personal assistant takes a call saying an Adafruit delivery is at my front door!
(Yes a doorbell could also be useful, but then I might have to answer the door to cold-calling sales people!)
In this guide, I will show you how to connect an attention-grabbing 40-watt Air Horn to the Adafruit IO platform.
There will be a passive-infrared (PIR) sensor to signal if anyone is in the office, which will also be presented in a 4-hour graph, and a nice interactive dashboard to make remote control simple.
It’s a no-soldering project, and you’ll be installing the open-source Adafruit IO WipperSnapper firmware on your board to automatically handle all the background code for connecting to the internet and triggering the inputs and outputs (no coding required).
The star of the show is the Metro ESP32-S2, because of the great combination of the built-in WiFi and the StemmaQT port with a wide input voltage range, but if you have another board that is supported by WipperSnapper that will work as well.
Page last edited March 08, 2024
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