Hardware Reference
In-Depth Information
Hardware configuration
It's now time to set up the hardware for this project. At this point, if you followed the first
chapter, you should already have your Arduino Ethernet shield plugged into the Arduino
board, and one Ethernet cable connecting the Ethernet shield and your Internet router. If
that's not the case already, please do so.
The only thing you will have to connect in this project is the DHT11 sensor and the resist-
or. You can have an overview of the different connections you have to make by looking at
the following schematics:
First, plug the DHT11 sensor to the breadboard. Then, connect pin number 1 and 2 of the
sensor using the 4.7k Ohm resistor.
Now, for the power supply. Connect pin number 1 of the sensor to Arduino 5 V, and pin
number 4 to the Arduino GND. Finally, connect pin number 2 of the DHT sensor to Ardu-
ino pin number 7.
This is what it should look like at the end:
