




Waveshare ESP32-S3 Industrial Isolated Main Control Board 6-Channel WiFi Relay Module Support WiFi/Bluetooth/RS4985/Pico The ESP32-S3-Relay-6CH is an industrial-grade relay module developed by Waveshare, featuring six channels and powered by the ESP32-S3 microcontroller.
The ESP32-S3-Relay-6CH is an industrial-grade relay module developed by Waveshare, featuring six channels and powered by the ESP32-S3 microcontroller. It offers robust wireless communication capabilities, including 2.4GHz WiFi and Bluetooth Low Energy (BLE), making it suitable for a variety of IoT and automation applications.
Applications:
This module is ideal for industrial automation, home automation systems, remote device management, and IoT applications requiring reliable wireless communication and multiple relay controls.
Development Support:
The ESP32-S3-Relay-6CH supports development using Arduino and MicroPython platforms. Comprehensive SDKs, development resources, and tutorials are available to assist users in getting started with their projects.
Waveshare ESP32-S3 Industrial Isolated Main Control Board 6-Channel WiFi Relay Module Support WiFi/Bluetooth/RS4985/Pico
Features:
- Based on ESP32-S3 microcontroller with 32-bit LX7 dual-core processor for Xtensa, capable of running at 240 MHz.
- Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, with superior RF performance.
- High quality relay, contact rating: ≤10A 250VAC/30VDC.
- Onboard isolated RS485 interface, for connecting to various RS485 Modbus industrial modules or sensors.
- Onboard 40PIN header compatible with some Raspberry Pi Pico HAT, for expanding more functions such as RTC / CAN / RS232 / LoRa / sensor, etc.
- Onboard USB Type-C port for power supply, firmware downloading and debugging.
- Onboard power supply screw terminal, supports 7~36V wide voltage input, suitable for industrial applications.
- Onboard optocoupler isolation to prevent interference from external high-voltage circuit connected to the relay.
- Onboard digital isolation to prevent interference from external signal.
- Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal.
- Built in buzzer, RGB colorful LED, power supply and RS485 TX/RX indicators for monitoring the operating status of the module.
- Rail-mounted ABS case, easy to install, safe to use.
Specification:
- Micro-controller: ESP32-S3 (Default module: ESP32-S3-WROOM-1U-N8, customizable for other modules)
- Wireless communication: 2.4GHz WiFi (802.11 b/g/n), Bluetooth 5, BLE
- Expanded interface: onboard 40PIN header compatible with some Raspberry Pi Pico HAT, easy to expand other functions such as RTC / CAN / RS232 / LoRa / sensor, etc.
- Power supply screw terminal: 7 - 36V
- Enclosure: rail-mount ABS protective case
- Product size: 145 x 90 x 30mm
USB:
- Connector: USB Type-C
- Power supply: 5V
- Functions: Power supply, USB communication, firmware downloading, etc.
Isolated RA485:
- Connector: screw terminal
- Direction control: hardware automatic control
- Protection: TVS diode, surge protection & ESD protection
- Resistor: onboard reserved 120R matching resistor, NC by default, enabled via jumper
Relay:
- Contact rating: ≤10A 250VAC/30VDC
- Relay channels: 6
- Contact form: 1NO 1NC
- Isolation: Optocoupler isolation
LED Indicator:
- RGB: RGB colorful LED, supports programmable control for display color
- PWR: Red power indicator, lights up when there is USB connection and voltage is detected
- TXD: Green TX indicator, lights up when the RS485 port sends data
- RXD: Blue RX indicator, lights up when the device port sends data back