ESP32-S3-Relay-6CH-RS485

RS485 Control

Connect the ESP32-S3-Relay-6CH device using RS485, and send data to ESP32-S3-Relay-6CH to control the opening and closing of each relay. Communication is performed at a default baud rate of 9600.

Operation Command	Command Function
06 05 00 01 55 00 A2 ED	Switch the state of the CH1 relay
06 05 00 02 55 00 52 ED	Switch the state of the CH2 relay
06 05 00 03 55 00 03 2D	Switch the state of the CH3 relay
06 05 00 04 55 00 B2 EC	Switch the state of the CH4 relay
06 05 00 05 55 00 E3 2C	Switch the state of the CH5 relay
06 05 00 06 55 00 13 2C	Switch the state of the CH6 relay
06 05 00 FF FF 00 BD BD	Turn on all relays
06 05 00 FF 00 00 FC 4D	Turn off all relays

Hardware Connection

  Here we use the example of USB TO RS232/485 Converter for demonstration

ESP32-S3-Relay-6CH	USB-TO-RS232-485
RS485 - A+	Tx B - A+
RS485 - B-	Rx B - B-

Softwares Operation

• Use SSCOM to send data
• Open the SSCOM software and select the COM port corresponding to the Port B connected above
• Open the serial port and use the Send Multi Char function to quickly send commands

• You can control the relays with the following commands