Esp32 s2 dht22 wrong readings, works after reset

ESPHome
1

have som issue whit esp32 s2, and dht22
on cold start i do get wrong readings
typical a few degrees c och low rf
efter reset och uppdate it gives the right readings

standard

  • platform: dht
    pin: GPIO1
    temperature:
    name: “Temp rf”
    humidity:
    name: “rf”
    update_interval: 10s

have tryed it on several esp32, and diffrent batches om dht22

any help of what this be?

2

Gpio1 is not “normal” pin, it’s uart TX pin, debug output at boot. Try with Gpio4 for example.

3

Also try adding the model to the config. Sometimes auto detection is a bit flaky.

  model: DHT22 # or DHT22_TYPE2
4

thanks, autodetect was the problem, model it all ok
did change pin to, but it wasent that, but i should not be using that anyway