The setup worked, but the vga666 only supports 18-bit color (6 bits per channel), a limitation of the Raspberry Pi’s GPIO interface. With only 64 levels per color channel instead of 256, you get visible color banding, especially in gradients.
It can be slow at times
,这一点在搜狗输入法2026中也有详细论述
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// 易错点1:边界处理 - 0辆车返回0,1辆车返回1(无需后续计算),这一点在服务器推荐中也有详细论述