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Linux SBC · SBC
Seeed Studio BeagleBone Green
A Seeed and BeagleBoard.org AM335x board derived from BeagleBone Black, replacing HDMI with two Grove connectors while retaining the cape headers.
Processor
Texas Instruments AM335x Arm Cortex-A8
Logic
3.3 V digital IO, 1.8 V analog inputs
Power
5 V micro-USB, 5 V barrel jack, or cape header rails
Format
BeagleBone cape-compatible SBC
Check before wiring
- Digital IO is 3.3 V and not 5 V tolerant; analog inputs are 1.8 V maximum.
- BeagleBone Green revisions differ, including eMMC and component updates noted by Seeed.
- HDMI pins and related cape assumptions differ from BeagleBone Black because HDMI was removed.
- P8/P9 pins have many alternate modes; verify Linux cape overlays and boot-time pin states.
Interfaces
GPIOI2CSPIUARTADCPWMCANEthernetUSB
Source-backed connector
Interactive pin map
Pin map
Connector
P8 / P9 cape expansion headers
Signals grouped by function — schematic layout, not to physical scale
Dense header — open Full view for a roomier, fully-labelled diagram.
Simplified diagram, grouped by function — not to physical scale. Pin data is source-backed; verify against the linked documentation.
Hover, tap, or focus a pad to inspect a pin. Use arrow keys to move between pins.
- Default (boot) signal names from the official BeagleBone Black System Reference Manual P8/P9 tables.
- Expansion IO is 3.3 V; driving 5 V into a pin can damage the AM335x. Analog inputs are 1.8 V maximum.
- The pin mux can change these functions at runtime; many P8 pins default to onboard eMMC/HDMI and need those disabled first.
All 84 pins (table)
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| P9 power & control | ||||
| 1 | Ground | DGND | DGND | |
| 2 | Power | VDD_3V3 | VDD_3V3 | |
| 3 | Power | VDD_5V | VDD_5V | |
| 4 | Power | SYS_5V | SYS_5V | |
| 5 | Power | PWR_BUT | PWR_BUT | |
| 6 | System | SYS_RESETn | ||
| P9 digital / serial / bus | ||||
| 7 | UART | UART | UART4_RXD | |
| 8 | GPIO | GPIO1_28 | ||
| 9 | UART | UART | UART4_TXD | |
| 10 | PWM | EHRPWM1A | ||
| 11 | GPIO | GPIO1_16 | ||
| 12 | PWM | EHRPWM1B | ||
| 13 | I2C | I2C | I2C1_SCL / SPI0_CS0 | |
| 14 | I2C | I2C | I2C1_SDA / SPI0_D1 | |
| 15 | I2C | I2C | I2C2_SCL | |
| 16 | I2C | I2C | I2C2_SDA | |
| 17 | UART | UART | UART2_TXD / SPI0_D0 | |
| 18 | UART | UART | UART2_RXD / SPI0_SCLK | |
| 19 | GPIO | GPIO1_17 | ||
| 20 | UART | UART | UART1_TXD | |
| 21 | GPIO | GPIO3_21 | ||
| 22 | UART | UART | UART1_RXD | |
| 23 | GPIO | GPIO3_19 | ||
| 24 | SPI | SPI | SPI1_CS0 | |
| 25 | SPI | SPI | SPI1_D0 | |
| 26 | SPI | SPI | SPI1_D1 | |
| 27 | SPI | SPI | SPI1_SCLK | |
| P9 analog (1.8 V max) | ||||
| 28 | Power | VDD_ADC | VDD_ADC · 1.8 V ADC reference. | |
| 29 | ADC | AIN4 · 1.8 V max input. | ||
| 30 | Ground | GNDA_ADC | GNDA_ADC | |
| 31 | ADC | AIN6 · 1.8 V max input. | ||
| 32 | ADC | AIN5 · 1.8 V max input. | ||
| 33 | ADC | AIN2 · 1.8 V max input. | ||
| 34 | ADC | AIN3 · 1.8 V max input. | ||
| 35 | ADC | AIN0 · 1.8 V max input. | ||
| 36 | ADC | AIN1 · 1.8 V max input. | ||
| 37 | GPIO | CLKOUT2 / GPIO0_20 | ||
| 38 | GPIO | GPIO0_7 / ECAP0_IN | ||
| 39 | Ground | DGND | DGND | |
| P8 GPIO / timers (1-22) | ||||
| 40 | Ground | DGND | DGND | |
| 41 | GPIO | GPIO1_6 / MMC1_DAT6 | ||
| 42 | GPIO | GPIO1_7 / MMC1_DAT7 | ||
| 43 | GPIO | GPIO1_2 / MMC1_DAT2 | ||
| 44 | GPIO | GPIO1_3 / MMC1_DAT3 | ||
| 45 | GPIO | TIMER4 / GPIO2_2 | ||
| 46 | GPIO | TIMER7 / GPIO2_3 | ||
| 47 | GPIO | TIMER5 / GPIO2_5 | ||
| 48 | GPIO | TIMER6 / GPIO2_4 | ||
| 49 | GPIO | GPIO1_13 | ||
| 50 | GPIO | GPIO1_12 | ||
| 51 | PWM | EHRPWM2B / GPIO0_23 | ||
| 52 | GPIO | GPIO0_26 | ||
| 53 | GPIO | GPIO1_15 | ||
| 54 | GPIO | GPIO1_14 | ||
| 55 | GPIO | GPIO0_27 | ||
| 56 | GPIO | GPIO2_1 | ||
| 57 | PWM | EHRPWM2A / GPIO0_22 | ||
| 58 | GPIO | GPIO1_31 / MMC1_CMD | ||
| 59 | GPIO | GPIO1_30 / MMC1_CLK | ||
| 60 | GPIO | GPIO1_5 / MMC1_DAT5 | ||
| P8 GPIO / UART (23-46) | ||||
| 61 | GPIO | GPIO1_4 / MMC1_DAT4 | ||
| 62 | GPIO | GPIO1_1 / MMC1_DAT1 | ||
| 63 | GPIO | GPIO1_0 / MMC1_DAT0 | ||
| 64 | GPIO | GPIO1_29 | ||
| 65 | GPIO | GPIO2_22 / LCD_VSYNC | ||
| 66 | GPIO | GPIO2_24 / LCD_PCLK | ||
| 67 | GPIO | GPIO2_23 / LCD_HSYNC | ||
| 68 | GPIO | GPIO2_25 / LCD_AC_BIAS | ||
| 69 | UART | UART | UART5_CTSN / GPIO0_10 | |
| 70 | UART | UART | UART5_RTSN / GPIO0_11 | |
| 71 | UART | UART | UART4_RTSN / GPIO0_9 | |
| 72 | UART | UART | UART3_RTSN / GPIO2_17 | |
| 73 | UART | UART | UART4_CTSN / GPIO0_8 | |
| 74 | UART | UART | UART3_CTSN / GPIO2_16 | |
| 75 | UART | UART | UART5_TXD / GPIO2_14 | |
| 76 | UART | UART | UART5_RXD / GPIO2_15 | |
| 77 | GPIO | GPIO2_12 | ||
| 78 | GPIO | GPIO2_13 | ||
| 79 | GPIO | GPIO2_10 | ||
| 80 | GPIO | GPIO2_11 | ||
| 81 | GPIO | GPIO2_8 | ||
| 82 | GPIO | GPIO2_9 | ||
| 83 | GPIO | GPIO2_6 / EHRPWM2A | ||
| 84 | GPIO | GPIO2_7 / EHRPWM2B | ||
Why it matters
- Seeed wiki documents BeagleBone Black compatibility and two 46-pin cape headers.
- Adds Grove I2C and UART connectors for Seeed ecosystem sensors.
- Keeps the PRU-capable AM335x platform used by BeagleBone cape projects.
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