3.3 Wiring diagram (Circuit diagram)
When the small warm color LED is used, it needs to be connected to the Port1,
Port2, and Port3 on the Robot HAT driver board, as shown in the red box:
3.4 How to control the small warm color LED
3.4.1Run the program of this course
1. Log in to your Raspberry Pi via SSH (the method to log in to the Raspberry Pi
has been introduced in Lesson 1):
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