BPI-R2 Pro all GPIO PIN define
BPI-R2 Pro 40PIN GPIO (CON2)
| GPIO Pin Name | Default ：GPIO | Function2 | Function3 |
| CON2-P01 | VCC3V3_SYS | ||
| CON2-P02 | VCC5V0_SYS | ||
| CON2-P03 | GPIO3_B4 | I2C5_SDA_M0 | |
| CON2-P04 | VCC5V0_SYS | ||
| CON2-P05 | GPIO3_B3 | I2C5_SCL_M0 | |
| CON2-P06 | GND | ||
| CON2-P07 | GPIO3_B5 | PWM10_M0 | |
| CON2-P08 | GPIO0_C1 | UART0_TX | |
| CON2-P09 | GND | ||
| CON2-P10 | GPIO0_C0 | UART0_RX | |
| CON2-P11 | GPIO3_C4 | UART7_TX_M1 | PWM14_M0 |
| CON2-P12 | GPIO3_A3 | I2S3_SCLK_M0_BT | |
| CON2-P13 | GPIO3_C5 | UART7_RX_M1 | SPDIF_TX1_M1 |
| CON2-P14 | GND | ||
| CON2-P15 | GPIO3_B6 | PWM11_IR_M0 | |
| CON2-P16 | GPIO0_C4 | UART0_RTS | |
| CON2-P17 | VCC3V3_SYS | ||
| CON2-P18 | GPIO0_C7 | UART0_CTS | |
| CON2-P19 | GPIO4_C3 | SPI3_MOSI_M1 | CAN1_TX |
| CON2-P20 | GND | ||
| CON2-P21 | GPIO4_C5 | SPI3_MISO_M1 | UART9_TX |
| CON2-P22 | GPIO4_C4 | SPDIF_TX | |
| CON2-P23 | GPIO4_C2 | SPI3_CLK_M1 | CAN1_RX |
| CON2-P24 | GPIO4_C6 | SPI3_CS0_M1 | UART9_RX |
| CON2-P25 | GND | ||
| CON2-P26 | GPIO3_C3 | UART5_RX_M1 | |
| CON2-P27 | GPIO1_A4 | ||
| CON2-P28 | GPIO3_C2 | UART5_TX_M1 | |
| CON2-P29 | GPIO1_B0 | ||
| CON2-P30 | GND | ||
| CON2-P31 | GPIO1_B1 | ||
| CON2-P32 | GPIO4_D2 | ||
| CON2-P33 | GPIO1_B2 | ||
| CON2-P34 | GND | ||
| CON2-P35 | GPIO3_A4 | I2S3_LRCK_M0_BT | |
| CON2-P36 | GPIO3_A2 | I2S3_MCLK_M0 | |
| CON2-P37 | GPIO2_D7 | ||
| CON2-P38 | GPIO3_A6 | I2S3_SDI_M0_BT | |
| CON2-P39 | GND | ||
| CON2-P40 | GPIO3_A5 | I2S3_SDO_M0_BT |
BPI-R2 Pro Debug UART(CON3)
| CON3-P1 | GND |
| CON3-P2 | UART0-RX |
| CON3-P3 | UART0-TX |
