If you want to change the pin that the LED is connected to, please modify the hardware.h file. If you want to change the brightness of the LED, please modify the Timings section definition in globals.h. This design has two external buttons, one for selecting the working mode and the other for turning the power on and off. When you press the mode button for more than 1.5 seconds, it enters the automatic mode and automatically demonstrates all the preset modes.
8 LED lights are directly connected to Vcc, and no current limiting resistor is required. This production uses a synchronous timer and uses sleep mode to save power.
Actual picture:
Circuit diagram: (click to enlarge)
PCB diagram: (click to enlarge)
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