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Markdown Colors
🔴 red: +5V
🟠orange: +3.3V
âš« black: ground
⚪ white: ground (pull-down)
🟣 purple: I2C signal
🟢 green: clock signal
🟡 yellow: WS2812 signal
🔵 blue: resistor bridge (analogue) input
🟤 brown: free