| IO_RST | RESET K210 |
| IO_1 | Unused |
| IO_2 | Unused |
| IO_3 | Unused |
| IO_4 | ISP_TX, connect microUSB TX |
| IO_5 | ISP_RX, connect microUSB RX |
| IO_6 | RXD, The receiving pin(RX) of the expansion interface |
| IO_7 | Unused |
| IO_8 | TXD, The send pin(TX) of the expansion interface |
| IO_9 | Unused |
| IO_10 | Unused |
| IO_11 | Unused |
| IO_12 | Unused |
| IO_13 | Unused |
| IO_14 | Unused |
| IO_15 | Unused |
| IO_16 | BOOT |
| IO_17 | connect key K1 |
| IO_18 | Unused |
| IO_19 | Unused |
| IO_20 | Unused |
| IO_21 | Unused |
| IO_22 | FT_INT，Connect the interrupt pin to the touch screen |
| IO_23 | LCD-RST，Connect to the reset pin of the touch screen |
| IO_24 | I2C-SCL，Connect the I2C-SCL pin of the touchpad |
| IO_25 | I2C-SDA，Connect the I2C-SDA pin of the touchpad |
| IO_26 | RGB-G，Connect to the G pin of the RGB lamp |
| IO_27 | RGB-R，The R pin is connected to the RGB lamp |
| IO_28 | LCD-WR，Connect to the WR(CLK) pin of the LCD |
| IO_29 | RGB-B，The B pin is connected to the RGB lamp |
| IO_30 | LCD-CS，The CS pin is connected to the LCD |
| IO_31 | LCD-RS，The RS(DC) pin connected to the LCD |
| IO_32 | SPI-CLK，The CLK pin connected to the TF card slot |
| IO_33 | SPI-MISO，The MISO pin connected to the TF card slot |
| IO_34 | SPI-CS，The CS pin connected to the TF card slot |
| IO_35 | SPI-MOSI，The MOSI pin connected to the TF card slot |
| IO_36 | Unused |
| IO_37 | Unused |
| IO_38 | Unused |
| IO_39 | Unused |
| IO_40 | DVP-SDA，Connect to the camera DVP-SDA pin |
| IO_41 | DVP-SCL，Connect to the camera DVP-SCL pin |
| IO_42 | DVP-RST，Connect to the camera DVP-RST pin |
| IO_43 | DVP-VSYNC，Connect to the camera DVP-VSYNC pin |
| IO_44 | DVP-PWDN，Connect to the camera DVP-PWDN pin |
| IO_45 | DVP-HSYNC，Connect to the camera DVP-HSYNC pin |
| IO_46 | DVP-XCLK，Connect to the camera DVP-XCLK pin |
| IO_47 | DVP-PCLK，Connect to the camera DVP-PCLK pin |