Collaborate Disseminate
At this point, we’ve all seen enough ESP8266 “weather stations” to know the drill: you just put the ESP and a temperature sensor inside a 3D printed case, and let all those glorious Internet Points™ flow right on in. It’s a simple, and perhaps more importantly practical, project that seems …read more
Continue reading An ESP8266 Environmental Monitor in your USB Port
If you want to measure humidity (and temperature, and maybe even barometric pressure) in a device that you’re building, have a look at this comprehensive test of seven different options. We’re going to summarize the results here, but you’ll really want to read up on the testing methodology — it’s great science hacking. Did you know about using saturated salt solutions to produce constant humidity levels for calibration? We didn’t.
The so-called DHT22 module doesn’t fare all that well, with one of six that [Robert] tested being basically horrible, and three of them breaking within two years of use. The …read more
