I have a uHoo for a few years, and it’s still working fine, but the app is pretty bad and the device paywalls the raw data behind a subscription which always felt scammy to me. Also the refresh interval is 1min.
So recently I went the diy route and pretty happy with a setup from m5stack: an SCD41 sensor plugged in to an AtomS3, running EspHome. I set the resolution to 5 seconds (can go down to 1 second), and then data goes to HomeAssistant -> InfluxDB and I plot it in Grafana. Cool to see the quick changes when using gas stove or opening up window.
So recently I went the diy route and pretty happy with a setup from m5stack: an SCD41 sensor plugged in to an AtomS3, running EspHome. I set the resolution to 5 seconds (can go down to 1 second), and then data goes to HomeAssistant -> InfluxDB and I plot it in Grafana. Cool to see the quick changes when using gas stove or opening up window.
https://shop.m5stack.com/products/co2l-unit-with-temperature...
https://shop.m5stack.com/products/atoms3-dev-kit-w-0-85-inch...