Amazons Dash buttons are $5 Wi-Fi enabled portals of pure consumerism. Edward Benson turned them into a cheap baby data-collection system. The buttons are basically just a radio and a battery. Benson set up his button-pushes to feed into a Google spreadsheet, so he uses it as a one-stop system to track every time his baby poops. Thanks to platforms like IFTTT, which can use one digital action to complete some other, completely different digital action, it’s easy to think of a bunch of different uses.”]
Source: https://gizmodo.com/hack-amazons-dash-buttons-to-do-more-than-order-stuff-1724725280