The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed).
How to add the DHT11 Temp & Humidity Sensor robot skill
- Load the most recent release of ARC (Get ARC).
- Press the Project tab from the top menu bar in ARC.
- Press Add Robot Skill from the button ribbon bar in ARC.
- Choose the Misc category tab.
- Press the DHT11 Temp & Humidity Sensor icon to add the robot skill to your project.
Don't have a robot yet?
Follow the Getting Started Guide to build a robot and use the DHT11 Temp & Humidity Sensor robot skill.
How to use the DHT11 Temp & Humidity Sensor robot skill
You need to flash the DTH11 firmware to the Arduino.EZ-Genuino_DTH11_Uno.zip
Use Pin 4 for signal.
The variables $Temp and $Humid are created. Have fun!

https://store.arduino.cc/products/usb-2-0-cable-type-a-b?selectedStore=eu