Usage Example for LattePanda-Serial Debugger Control
Last revision 2026/01/08
This article offers a comprehensive guide on utilizing the LattePanda Serial Debugger for controlling relay modules, featuring hardware preparation, wiring diagrams, and command instructions for effective operation.
Hardware Preparation
- LattePanda V1 x1
- DFR0684 RS485 Connector Expansion Shield for LattePanda V1 x1
- DFR0290 8 Channel IoT Ethernet Relay Controller x1
Wiring Diagram
- Connect the Shield and LattePanda V1
- Use the Copper Columns and screws to fix the shield on LattePanda Board.

Note: Not Sopport Hot Plugging
Using Serial Debugger
- Connect the LattePanda with RS485 connector shield, turn it on.
- Power on the 8 Channel IoT Ethernet Relay Controller.
- Use the serial debugger to send the related commands to control the relay module according to the user-defined communication principle of the 8 channel relay controller.
Result
Turn on/off the relay No.1, shown as below.

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