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2.21 Relay Module¶
Overview¶
In this lesson, you will learn about Relay Module.
Components Required¶
Fritzing Circuit¶
In this example, we use Power Supply Module to power the load,use LED as an example.
Schematic Diagram¶
Code¶
Note
You can open the file
2.21_relayModule.ino
under the path ofsunfounder_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.