Features: MCU: ESP32 FLASH: 4MB Supports TF card Bus Interfaces: UART, SPI, I2C, CAN, I2S, SDIO Wireless Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth 4.2+BLE Onboard Buttons: RST + BOOT WS2812 RGB LED: GPIO4 USB to TTL chip: CH340K Power Input: DC 5-12V CAN and RS-485 Pin Header CAN: TX (GPIO27), RX (GPIO26), SE (GPIO23) RS-485: TX (GPIO22), RX (GPIO21), SE (GPIO19), EN (GPIO17) Specifications: MCU: ESP32 FLASH: 4MB Supports TF card Bus Interfaces: UART, SPI, I2C, CAN, I2S, SDIO Wireless Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth 4.2+BLE Onboard Buttons: RST + BOOT WS2812 RGB LED: GPIO4 USB to TTL chip: CH340K Power Input: DC 5-12V CAN and RS-485 Pin Header CAN: TX (GPIO27), RX (GPIO26), SE (GPIO23) RS-485: TX (GPIO22), RX (GPIO21), SE (GPIO19), EN (GPIO17) Note: Please allow 01 cm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you. Package Includes: 1 x T-CAN485 Module