This interactive Raspberry Pi 3 GPIO Pinout Explorer displays a detailed visual representation of the board's 40-pin header alongside its key components — including the BCM2837 quad-core processor, BCM43438 WiFi/BT chip, USB ports, Ethernet, HDMI, CSI camera connector, and microSD slot. Users can click any pin on the SVG board diagram to see its full details on the right panel, including voltage, current rating, type, available functions, and usage notes. A filter toolbar lets users highlight specific pin categories such as GPIO, PWM, SPI, I2C, UART, CLK, power, and ground pins, dimming all non-matching pins for quick visual reference. A scrollable pin list below the filters mirrors the board selection and can be toggled open, while a color-coded legend at the bottom identifies each pin type at a glance.
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