Waveshare Industrial 1-Channel ESP32-S3 WiFi Relay Module with Multiple Isolation Protection Circuits
- ESP32-S3R8 MCU with 240 MHz dual-core and 16MB Flash
- Wi-Fi & Bluetooth 5 (LE) dual-mode wireless communication
- Isolated RS485 interface with TX/RX indicators and 120Ω resistor
- Power, optocoupler, and digital isolation for interference protection
- High-power relay rated ≤10A 250VAC / 30VDC with 1 NO contact form
SKU: Not Found
Brand: WAVESHARE
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Product Description
The Waveshare Industrial 1-Channel ESP32-S3 WiFi Relay Module is a robust, rail-mount automation solution designed for industrial applications. Powered by the ESP32-S3 microcontroller, it supports dual-mode wireless communication via Wi-Fi and Bluetooth 5 (LE), and includes an isolated RS485 interface for seamless integration with Modbus sensors or controllers. With multiple isolation protections—power, optocoupler, and digital—the module ensures safe, stable, and interference-free operation.
The onboard high-quality relay (rated up to 10A 250VAC/30VDC) enables remote control of high-voltage or DC devices. An onboard RTC chip supports scheduled automation, while USB Type-C simplifies power and debugging. Housed in a DIN rail-mountable enclosure, it’s easy to install, safe to deploy, and perfect for smart factory, home automation, and industrial IoT solutions.
Features:
- Based on ESP32-S3 with dual-core LX7 processor (up to 240 MHz)
- Integrated GHz Wi-Fi and Bluetooth 5 (LE) for wireless connectivity
- High-quality 1-channel relay (≤10A 250VAC/30VDC) for direct load control
- Onboard RS485 interface with isolation for Modbus devices
- Built-in RTC chip for scheduled tasks and real-time operations
- Multiple isolation circuits: power, optocoupler, and digital isolation
- USB Type-C port for power, debugging, and firmware updates
Package Includes:
1 x ESP32-S3-Relay-1CH
1 x SH1.0 4PIN cable ~150mm
1 x Screwdriver
Technical Specifications
| Connector | USB Type-C |
|---|---|
| Flash Memory | 16MB |
| Height (mm) | 25 |
| Item Type | Relay Module |
| Length (mm) | 90 |
| Microcontroller | ESP32-S3R8 |
| Model | WiFi Relay Module |
| No. of Channels | 1 |
| Operating Voltage (VDC) | 5 |
| Power Supply | 5V |
| Shipping Dimensions | 10.5 × 8 × 3 cm |
| Shipping Weight | 0.12 kg |
| Weight (g) | 60 |
| Width (mm) | 60 |



