“I wanted to have a home weather station for quite some time and one that everyone in the family could easily check on for temperature and humidity. In addition to monitor the outside conditions I wanted to monitor specific rooms in the house as well and my garage workshop. That would let us know when it is a good time to air out the house or run the dehumidifier (it rains a lot here during the winter). What I created is an ESP-Now based sensor system that reports to a local web-server that anyone can check from their computer or phone. For the phone I wrote as simple Android app to make that even easier.”