3 years, 6 months ago.

DHT 22 is error

i want to read data from DHT 22 sensor, i use this code https://developer.mbed.org/users/Wimpie/code/DHT_TestProgram/ but the output is error.. display in termite is Err 2..

i use nucleo L152RE any one can help this problem?? please...

1 Answer

3 years, 6 months ago.

Hi Susanto,

Thanks for your question :)

What value of pull up resistor are you using, id recommend 4.7K to 10k. Have you connected everything correctly.

Have you tried this in a simple program?

Have you tried a different library? such as found here, this should also show you how to connect your device:



Andrea, team mbed

thank you andrea for your answer.. i tried to using pull up resistor 4.7k and connected everything correctly, and i tried to using that code https://developer.mbed.org/cookbook/Grove-temperature--humidity-sensors but the output is error "Err 2"

posted by Susanto . 17 Jan 2017