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Hi, What is the PCB's process parameter?

question

![TM1638_display_address](https://github.com/user-attachments/assets/c9f73c7c-6871-4755-b3f4-053d74eefeec) uint8_t Buffer[4] = {0}; // mapping GRID1(0x00,0x01) and GRID2(0x02,0x03)