^Carambola PIN ^Description ^PIN Name ^GPIO ^Motherboard pin ^ |1 | |GND | | | |2 | LAN0 | ETH0_RD+ | | | |3 | LAN0 | ETH0_RD- | | | |4 | LAN0 | ETH0_TD+ | | | |5 | LAN0 | ETH0_TD- | | | |6 | | GND | | | |7 | LAN1 | ETH1_RD+ | | | |8 | LAN1 | ETH1_RD- | | | |9 | LAN1 | ETH1_TD+ | | | |10 | LAN1 | ETH1_TD- | | | |11 | | 2VD | | | |12 | | GND | | | |13 | SPI | SPI_EN | GPIO3 | 1 | |14 | SPI | SPI_CLK | GPIO4 | 3 | |15 | SPI | SPI_DOUT | GPIO5 | 5 | |16 | SPI | SPI_DIN | GPIO6 | 7 | |17 | | RESET | | 9 | |18 | LED | WLAN_LED | | | |19 | LED | ETH1_LED | | | |20 | LED | ETH0_LED | | | | |21 | | 5V | | | |22 | | 3.3V | | | |23 | | 3.3V | | | |24 | | GND | | | |25 | UART1 | RIN | GPIO14 | 16 | |26 | UART1 | DCD | GPIO12 | 14 | |27 | UART1 | DTR | GPIO11 | 12 | |28 | UART1 | DSR | GPIO13 | 10 | |29 | UART1 | RTS | GPIO7 | 8 | |30 | UART1 | CTS | GPIO9 | 6 | |31 | UART1 | TXD | GPIO8 | 4 | |32 | UART1 | RXD | GPIO10 | 2 | |33 | I2C | I2C_SCLK | GPIO2 | 15 | |34 | I2C | I2C_SD | GPIO1 | 13 | |35 | UART2 | TXD2 | | | |36 | UART2 | RXD2 | | | |37 | | GND | | | |38 | USB | UDP | | | |39 | USB | UDM | | | |40 | | UPHY | | | {{:motherboard-pinout.png?nolink&500|}} {{:carmbola-pinout2.png?nolink&500|}} {{:pins-sharing.png?nolink&500|}}