User Manual Q&AAnswer
Feb 12, 2025 - 02:30 AM
To configure the WIZnet WIZ550SR Ethernet Module using AT commands, you can follow the steps below:
1. Connect the WIZ550SR module to your computer using a USB-to-UART converter.
2. Open a serial terminal program on your computer and configure it to communicate with the WIZ550SR module at the appropriate baud rate (e.g., 115200 bps).
3. Send the "AT" command to check if the module is responding. You should receive an "OK" response.
4. Use the "AT+SCONFIG" command to set the network configuration. For example, you can set the IP address, subnet mask, gateway, and DNS server using the following syntax: "AT+SCONFIG=,,,".
5. Use the "AT+SMODE" command to set the operation mode. You can choose between "TCP Server", "TCP Client", or "UDP" mode. For example, "AT+SMODE=1" sets the module to TCP Server mode.
6. Use the "AT+SPORT" command to set the server port number if you are using TCP Server mode. For example, "AT+SPORT=5000" sets the server port to 5000.
7. Use the "AT+SCON" command to establish a connection. For TCP Server mode, you can use "AT+SCON=0" to start listening for incoming connections.
8. Once a connection is established, you can send and receive data using the "AT+SSEND" and "AT+SRECV" commands, respectively.
9. To close the connection, use the "AT+SCLOSE" command.
Please refer to the WIZnet WIZ550SR Ethernet Module User Manual for more detailed information on the AT command set and configuration options.
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