GolamMostafa:
Unfortunately, I could not compile/upload your program in my UNO/Dht11. This is the program (taken from IDE Example) that I have executed in my UNO; it is working fine. You may use this program to check your sensor functionality. This is the Library File that I have used.
Thank you for your help
i copied your code with your library exactly but now it gives me the following error:
In file included from D:\Documents\Arduino\libraries\DHT-sensor-library-master\DHT_U.cpp:22:0:
D:\Documents\Arduino\libraries\DHT-sensor-library-master\DHT_U.h:25:29: fatal error: Adafruit_Sensor.h: No such file or directory
#include <Adafruit_Sensor.h>
^
compilation terminated.
Error compiling for board arduino/genuino mega or mega 2560
I make sure i had the correct Com Port. I updated board controller and libraries but I don't understand the error now