Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
If your willing to home brew a solution, check out the esphome project. It’s very easy to implement and runs on very inexpensive esp32 boards.
I’ve got something similar, but less ambitious running at my place (temp only). It’s been solid for about 6 months now.
Thanks! I have a few answers with same suggestion, will check all this out!
I went with inkbird for something similar. They are Bluetooth, with a cheap wifi module as well. Wide range of sensors. Cost me 60 in total to monitor my hottub temp when I'm in Mexico and it's -40 at home
Thank you! Just checked it and it looks really nice. How do you integrate it with home assistant? I've been checking the inkbird integration and it seems to be Bluetooth only. I'm afraid Bluetooth is not an alternative, the HA server is in the basement and is not going to reach the pool by Bluetooth
I set this up recently with an ESPHome Bluetooth proxy on an m5stack atom. As long as the proxy can be on WiFi and see the Inkbird, works great.