ESP8266 Community Forum

- Sun Jul 26, 2015 3:34 am #24280 DHT dht(DHT_PIN,DHT22,15); for a DHT22 speed is 15

DHT::DHT(uint8_t pin, uint8_t type, uint8_t count) in your library DHT.cpp I think

Last edited by tytower on Mon Jul 27, 2015 12:23 am, edited 1 time in total.

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Sun Jul 26, 2015 4:28 pm #24327 mmm I thought Id cracked it but im getting eratic readings ,sometimes it works, sometimes it doesnt.

tytower, do you know what the correct speed for a DH11 is? 15 doesnt make much difference

- Sun Jul 26, 2015 6:44 pm #24332 OK. Im now stumped again...

For some reason I no longer get any readings.. and constantly get Failed to read from DHT Sensor in my code, not always but 80% of the time....

Code is trivial.. and Im now baffled again..
Ive set the 3rd param to 15.. baffling]

- Mon Jul 27, 2015 12:21 am #24349

tytower, do you know what the correct speed for a DH11 is? 15 doesnt make much difference

I don't it is trial and error at this stage . There is a default rate set in the code I think . You will have to look it up . There is also a thread with a few posts on DHT22 and speeds . If I find it I'll post back. From memory I tried from 6 to about 40 and settled on 15 as did someone else in that thread.

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG