Module interfaceand reserved pininterface Interconnects with modules via backplane-connectedadapter boards. Power supply header The power supply output pinout can provide 3.3V or 5V voltage. Power switch 5V power switch Micro USBFemale socket The USB interface is used for power supply to the board,for flashing firmware to the chip, and for communicationwith the chip using USB protocols. TX RX Leveljumper port Control the I/O port level of TX/RX, you can select 3.3Vor 5V, default 3.3v. USB-to-UARTBridge A single chip USB to UART bridge, baud rates:50bps-6Mbps. UART to RS485circuit Reserved UART to RS485 communication interface. Power LED The board is connected to a USB power supply, and whenthe power switch is pressed, the indicator light is lit. Product Parameters 1.Pin description2. Functional Block Diagram3. What is WT99-DK Suitable for
