Sample DHT22... Read DHT22 failed, err=101

[vjkanth]

Kit: Wemos D1 Mini, Sensor DHT22

I've used the SimpleDHT code and have the required libraries. Compiled and uploaded OK but keep getting

Sample DHT22... Read DHT22 failed, err=101

I'm powering the sensor externally and connected it to D4 on my Wemos D1 Mini board. The code in the same to assign the pin is:

int pinDHT22 = 2;

I'm not sure what that 2 refers to. Is it D2, or GPIO2 or physical pin 2 (which is A0) can someone who's used this successfully please clarify? Wemos Pinout is here: https://escapequotes.net/esp8266-wemos-d1-mini-pins-and-diagram/

Thanks in advance.

[vjkanth]

Resolved! The PIN designation in the code above is the Arduino Pin reference. In Wemos it equated to D4. Works perfectly. Thanks for the code! Temperature: 25.30 *C Humidity: 32.00% 👍

[winlinvip]

👍