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 BR/EDR and BLE Onboard Buttons: RST, BOOT, WS2812 RGB (GPIO04) USB to TTL chip: CH340K Power Input: DC 5-12V Integrated CAN and RS-485 interface pins CAN signals: TX (GPIO27), RX (GPIO26), SE (GPIO23) RS-485 signals: 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 BR/EDR and BLE Onboard Buttons: RST, BOOT, WS2812 RGB (GPIO04) USB to TTL chip: CH340K Power Input: DC 5-12V Integrated CAN and RS-485 interface pins CAN signals: TX (GPIO27), RX (GPIO26), SE (GPIO23) RS-485 signals: TX (GPIO22), RX (GPIO21), SE (GPIO19), EN (GPIO17) Note: Please allow 0–1 cm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the actual color of the item may vary slightly from the images shown. Package Includes: 1 x T-CAN485 module