BeagleBone Pinouts

BeagleBone Black - P9 Header (Key Pins)

PinNameFunctionType
P9_1GNDGroundGround
P9_2GNDGroundGround
P9_3VDD_3V33.3V PowerPower
P9_4VDD_3V33.3V PowerPower
P9_5VDD_5V5V PowerPower
P9_6VDD_5V5V PowerPower
P9_7SYS_5VSystem 5VPower
P9_8SYS_5VSystem 5VPower
P9_11UART4_RXUART4 Receive / GPIOUART/GPIO
P9_12GPIO60GPIOGPIO
P9_13UART4_TXUART4 Transmit / GPIOUART/GPIO
P9_14EHRPWM1APWM / GPIOPWM/GPIO
P9_16EHRPWM1BPWM / GPIOPWM/GPIO
P9_17SPI0_CS0SPI Chip Select / I2C1 SCLSPI/I2C
P9_18SPI0_D1SPI MOSI / I2C1 SDASPI/I2C
P9_19I2C2_SCLI2C2 ClockI2C
P9_20I2C2_SDAI2C2 DataI2C
P9_21SPI0_D0SPI MISO / UART2 TXSPI/UART
P9_22SPI0_SCLKSPI Clock / UART2 RXSPI/UART
P9_33AIN4Analog Input 4 (1.8V max)Analog
P9_35AIN6Analog Input 6 (1.8V max)Analog
P9_36AIN5Analog Input 5 (1.8V max)Analog
P9_37AIN2Analog Input 2 (1.8V max)Analog
P9_38AIN3Analog Input 3 (1.8V max)Analog
P9_39AIN0Analog Input 0 (1.8V max)Analog
P9_40AIN1Analog Input 1 (1.8V max)Analog

BeagleBone Green - Grove Connectors

PinNameFunctionType
Grove I2CSCL/SDAI2C Bus (3.3V)I2C
Grove UARTTX/RXUART (3.3V)UART
P8/P9GPIOSame as BBB headersGPIO