You are reading a single comment by @cyclotron3k and its replies.
Click here to read the full conversation.
cyclotron3k-
Battery is a single AAA. I've had mine about 2 months and it is reporting 91% battery left with the unbranded cell it came with.
Range is okay but not great. One floor or one room away is fine but probably not much more.
For the DIY approach some of the sensors at pihome.eu look interesting and might have better range. https://www.pihome.eu/product/wireless-ds18b20-room-temperature-sensor-battery-powered-2/ - Needs a NRF24L01 receiver I think. The whole pihome system looks interesting, I hadn't seen it until this morning. Might order some and have a play.
jellybaby
I've got a Bluetooth LE sensor that I read with a Raspberry Pi (https://uk-m.banggood.com/Xiaomi-Mijia-bluetooth-Temperature-Humidity-Sensor-LCD-Screen-Digital-Thermometer-Hygrometer-Moisture-Meter-p-1232396.html). I presume whatever you are trying to control has some sort of API so roll your own?