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2.21 Relay Module¶

Overview¶

In this lesson, you will learn about Relay Module.

Components Required¶

../_images/Part_two_21.png

Fritzing Circuit¶

In this example, we use Power Supply Module to power the load,use LED as an example.

../_images/image187.png

Schematic Diagram¶

../_images/image188.png

Code¶

Note

  • You can open the file 2.21_relayModule.ino under the path of sunfounder_vincent_kit_for_arduino\code\2.21_relayModule directly.

  • Or copy this code into Arduino IDE.

Once the codes are uploaded to the Mega2560 board, you can see that the Relay Module controls the closing and breaking of the external circuit, which will change its working state a second. For detailed code explanation, refer to 1.2 Digital Write.

Phenomenon Picture¶

../_images/image189.jpeg