This might be what I'm looking for, but the components page is broken. I need small, affordable temp+humidity sensors that multiple people can monitor via a web page or app. I did something similar years ago with a solution from a company called "One wire" and a lightweight PC interface, but it's pretty dated now and new components are tough to find. Any suggestions?
You can get esp8266 devices as cheap as about $1.30 on Ali express or you can get the super tricked out ones (mainly just for prototyping) from adafruit for about $9.99. They call theirs the Huzzah and it comes with stuff that you don’t have to solder on to most esps anyways. But a small cheap wireless sensor (3.3V) that can attach to any small sensor makes for some interesting automations.
Xiaomi Gateway + Xiaomi temperature sensor (it records temp and humidity). They have a bunch of other stuff like lights, switches, window/door sensors etc.
Easiest way is to use Mi Home app, but you can also use Homebridge to have data in Apple Home (if you are a fan of that), or Home Assistant.
