I’m comparing a Shelly H&T with a DHT22 connected to an ESP32. There seems to be a constant difference between the two (ignoring the difference due to the difference in update intervals). [Screenshot 2022-08-02 at 21.32.02] I’d like to know if anybody else has made a similar comparison and wheth…

The Shelly is spec’d at ±1°C The DHT22 is ±0.5°C So worst case 1.5°C between the two. Your sensors appear to fall within this range. A mercury thermometer will be no better than ±0.5°C, so won’t help much.

Good thinking, thanks Tom. I didn’t consider the tolerances. Interestingly, I have more than one Shelly H&T and they all report near identical readings. I wonder if they perform some calibration during manufacturing. I don’t have another DHT22 to compare against. I also tried to find out which tem…

Hello, can you push the code with the connection beetwen ESP32 tp the Shelly H&T. I have problems with them ? You can help me a lot, thank you! Best regards

I don’t understand what you’re asking. The original post was about comparing the different hardware. The Shelly H&T is its own complete product and I run the stock Shelly firmware on it. If you’re just looking for the ESPHome config for a DHT and an ESP32, it’s all on the ESPHome website.

I need this issue fixed. How i can setup a ESP32 and connect it to a Shelly H&T wirelessly and then extract the data from the sensor. Thank you! I hope, you can help me.

[image] How to help us help you - or How to ask a good question Configuration Before we begin… This forum is not a helpdesk The people here don’t work for Home Assistant, that’s an open source project. We are volunteering our free time to help others. Not all t…

Shelly H&T vs ESP32 + DHT22

Hardware

parautenbach (Pieter Rautenbach) March 18, 2023, 7:12am 8