Inspired by paper cutting, I cut the PCB for the Mid-Autumn Festival limited edition and installed an LED on the eye. It is controlled by STC15W104. In fact, it can also be replaced with a smaller or cheaper microcontroller.
The MCU is only responsible for controlling the eyes, and only reserves an external serial port download interface.
The irregular borders are indeed difficult to straighten, and some corners are difficult to deal with.
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