Airwick fart neutraliser - with schematic

Video Description

Seriously... This unit was supposed to be able to detect farts and then quench them with chemical aroma on demand. Well it did until I broke the sensor (not with a fart). I'm not sure if these are still available in other countries, but they weren't on the shelves long here. The circuitry is interesting, but bizarre. In hindsight I could have emulated the sensor with a variable resistor and seen how it affected the other circuitry, but as it is probably only switched on briefly at an unknown timing it would have taken a long time to catch it in the act. It may also test in very short time bursts, so without a data logger it would have been tricky. The design of the circuitry is surprisingly complex and makes me wonder if they just squeezed the max out of a basic function chip to keep costs low. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- https://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty. #ElectronicsCreators