Closed johnnychicago closed 2 years ago
Yes support for DHT21 would be awesome!
Hoping on this as well!
DHT21 is a very good solution for outdoor usage. Implementing it in ESPhome would be more than welcome
Dont know why but my ESP8266 with connected DHT21 started working with:
sensor:
Humidity and temp are read fine
Can confirm: an AM2301 seems to work fine with an ESP8266-based Sonoff TH16 and ESPHome 2022.2.5. Complete YAML stanza with faster-than-sensible updates just for my testing:
sensor:
- platform: dht
pin: GPIO14
model: DHT22
temperature:
name: temperature
accuracy_decimals: 1
humidity:
name: humidity
accuracy_decimals: 1
update_interval: 10s
Created a PR to reflect the DHT21/AMS2301 as variants in the DHT documentation - https://github.com/esphome/esphome-docs/pull/2044
Can't get it working either. Use it with nodeMCU
- platform: dht
pin: D7
model: DHT22
temperature:
name: Roof Temp
accuracy_decimals: 1
humidity:
name: Roof Humidity
accuracy_decimals: 1
update_interval: 10s
[10:34:36][W][dht:163]: Waiting for DHT communication to clear failed!
[10:34:36][W][dht:060]: Invalid readings! Please check your wiring (pull-up resistor, pin number).
[10:34:36][D][sensor:124]: 'Roof Temp': Sending state nan °C with 1 decimals of accuracy
[10:34:36][D][sensor:124]: 'Roof Humidity': Sending state nan % with 1 decimals of accuracy
Describe the problem you have/What new integration you would like
The DHT21 sensor is not currently supported in esphome. It is a slightly chunkier 'outdoor' variant of the well supported DHT22, the hardware being packaged in a more useful way for mounting a device. It quotes AM2301 on the case. Not adding a link since I don't want to spam for vendors. Tasmota and similar support this.
Please describe your use case for this integration and alternatives you've tried:
I have tested a sensor, defined it in YAML as AUTO, as DHT22 and as all other options for model. Logfile clearly recognises there is a sensor, but can't speak to it.
Additional context
Here's hoping this thing is supported in underlying libraries and it would not be a major issue to activate support.