I’m looking to setup about 7 temperature sensors around the house that can run on battery so I don’t have to try and plug them into power outlets. I’m looking for something that can transmit data back to my Raspberry PI, so many options for protocol as long as it works.
I’m hoping to set this up without spending a ton of money.
The best looking option I’ve seen so far is the Aeotec TriSensor, Z-Wave Plus S2 Motion, Temperature, Light Sensor, 3-in 1: https://www.amazon.com/Aeotec-TriSensor-Temperature-Automation-Security/dp/B07GP3ZCYD
But at $45 each that adds up quickly and I don’t really need the motion and light sensor.
This post looked interesting for making my own: http://www.bntdumas.com/2015/07/23/how-to-battery-powered-temperature-and-humidity-sensors/
However, from the post, it doesn’t sound like the battery life is very good, and I don’t want to be changing batteries in them all every week.
Any suggestions for anything that you use that works well? Thanks!