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AiPi-UNO-ET485 is an Arduino development board specially designed by Axiomtek open source team for Ai-M61-32S, which supports the development of Aruino IDE, adopts the classic board design of Arduino UNO, with on-board Ethernet circuits, 485 interfaces, and CH340C serial port burn-in. The Ai-M61-32S module has rich peripheral interfaces, including DVP, MJPEG, Dispaly, AudioCodec, USB2.0, SDU, Ethernet (EMAC), SD/MMC (SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPADC, ACOMP and GPIO. and GPIO, etc. Integrated SPI screen interface, DVP camera interface, reserved TF card holder, and lead to USB interface, can access USB camera.
Available GPIO list
| GPIO pin name | GPIO name | GPIO other functions |
| Rx | GPIO22 | Default programming and log port //SPI_MOSI/SPI_MISO/I2S_DI/I2S_RCLK_O/I2C_SCL/PWM0 |
| Tx | GPIO21 | Default programming and log port //GPIO21/SPI_SCLK/I2S_FS/I2C_SDA/PWM0 |
| IO17 | GPIO17 | SPI_SCLK/I2S_FS/I2C_SDA/XTAL_32K_OUT/PWM0 |
| IO12 | GPIO12 | SPI_SS/SDH_CLK/SF3_D0/I2S_BCLK/I2C_SCL/PWM0/ADC_CH6 |
| IO14 | GPIO14 | SPI_MOSI/SPI_MISO/SDH_DAT3/SF3_D1/I2S_DI/I2S_RCLK_O/I2C_SCL/PWM0/ADC_CH4 |
| IO15 | GPIO15 | SPI_MOSI/SDH_DAT2/SF3_CS/I2S_DO/I2S_RCLK_O/I2C_SDA/PWM0 |
| IO18 | GPIO18 | SPI_MISO/I2S_DI/I2S_RCLK_O/I2C_SCL/PWM0 |
| IO19 | GPIO19 | SPI_MOSI/I2S_DO/I2S_RCLK_O/I2C_SDA/PWM0/ADC_CH1 |
| IO13 | GPIO13 | SPI_SCLK/SDH_CMD/SF3_D2/I2S_FS/I2C_SDA/PWM0/ ADC_CH5 |
| IO10 | GPIO10 | SPI_MISO/SDH_DAT1/SF2_D3/I2S_DI/I2S_RCLK_O/I2C_SCLPWM0/ADC_CH7 |
| IO11 | GPIO11 | SPI_MOSI/SDH_DAT0/SF3_CLK/I2S_DO/I2S_RCLK_O/I2C_SDA/PWM0 |
| IO20 | GPIO20 | SPI_SS/I2S_BCLK/I2C_SCL/PWM0/ADC_CH0 |
| USB_DP | USB_DP | / |
| USB_DM | USB_DM | / |
| IO23 | GPIO23 | /SPI_MOSI/I2S_DO/I2S_RCLK_O/I2C_SDA/PWM0 |
| IO24 | GPIO24 | SPI_SS/I2S_BCLK/I2C_SCL/PWM0 |
Resource
https://docs.ai-thinker.com/_media/open_hard/aipi-uno-et485.pdf
https://docs.ai-thinker.com/en/uno-et485?s[]=aipi&s[]=uno&s[]=et485