In this video, I’m building a LoRaWAN Class A sensor node using an ESP8266, BME680 environmental sensor, and REYAX RYLR993 ...
Over time, I've found different uses for it, and the most recent way that I'm using it is likely the one I'll settle on.
A battery-free sticker reads vitamin C levels from fingertip sweat by turning any drinking cup into a smart health sensor.
Smart plugs are a simple, affordable way to upgrade your home. Here are some clever ways I use them for automation.
Full study: “ A smart cup for wireless, biofuel-powered, sweat-based vitamin C sensing .” Co-authors of the study include Muhammad Inam Khan*, Ryan Burns*, Akshit Agarwal, Lu Yin, Jongmin Moon, Bumsik ...