Industrial 6-Channel ESP32-S3 WiFi Relay Module

Industrial 6-Ch ESP32-S3 WiFi Relay Module

Based on ESP32-S3, Supports WiFi / Bluetooth, Onboard RS485 / Pico HAT interfaces

Built-in protection circuits such as power isolation and optocoupler isolation, Safe & Stable & Reliable

Features at a glance

• Based on ESP32-S3 microcontroller with Xtensa 32-bit LX7 dual-core processor, 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

Specifications

Based on ESP32-S3, Designed
for AIoT market

Equipped with Xtensa 32-bit LX7 dual-core processor, capable of running at 240 MHz, with Powerful AI Computing Performance and Security Encryption Mechanism; Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication

Onboard multiple isolation protection circuit

Multiple protections, more safe and reliable

High quality 6-Ch relays, supports RS485 and Bluetooth / WIFi remote control

Contact rating of the onboard relay up to 10A 250VAC/30VDC
Directly controlling 220VAC home appliances, or devices below 30VDC

Onboard Pico HAT compatible interface and RS485 interface for easy expansion

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.

Supports Arduino, Micropython development

Comprehensive SDK, Dev Resources, And Tutorials To Help You Easily Get Started

Application Examples

Provides Multiple Networking Demos With Waveshare.Cloud, Using The Lightweight MQTT Protocol To Achieve Data Visualization Service

What’s On Board

1. ESP32-S3
   up to 240MHz operating frequency, with 2.4GHz WiFi and BLE
2. 6-channel quality relays
   contact rating per channel: 10A 250V AC or 10A 30V DC
3. Optocoupler isolation
   prevents interference from external high-voltage circuit connected to the relay
4. Digital isolation
   prevents interference from external signal
5. Power supply isolation
   provides stable isolated voltage, needs no extra power supply for the isolated terminal
6. TVS diode
   effectively suppresses surge voltage and transient spike voltage in the circuit
7. Ceramic gas discharge tube
8. Relay screw terminals
   for connecting with user devices
9. 40PIN Raspberry Pi Pico HAT header
10. RS485 bus interface
    for connecting to external RS485 device

1. Power supply screw terminal
   Supports DC 7~36V wide voltage input
2. LED indicators
   PWR: power indicator
   RXD: RS485 RX indicator
   TXD: RS485 TX indicator
3. WS2812 RGB LED
   controllable via GPIO38
4. USB Type-C connector
   for module power supply, firmware downloading and USB communication
5. Passive buzzer
   sound frequency is controllable via GPIO21
6. ESP32 RESET button
7. ESP32 BOOT button
8. External antenna connector
   SMA female connector, for WiFi and Bluetooth wireless communication
9. RS485 matching resistor jumper
   Onboard reserved 120R matching resistor, enabled via jumper
10. Relays default control pin setting

Enclosure Design

Protection Enclosure with 35mm rail-mount support, easy to install, safe to use

Outline dimensionsWiki:www.waveshare.com/wiki/ESP32-S3-Relay-6CH