ESP32-S3-Relay-1CH

Industrial 1-Channel ESP32-S3 WiFi Relay Module, Supports Wi-Fi / Bluetooth, Onboard RS485 interface, With Multiple Isolation Protection Circuits, Industrial-Grade Rail-Mount Case

Industrial 1-Ch ESP32-S3 WiFi Relay Module

Based on ESP32-S3, Supports Wi-Fi / Bluetooth, Onboard RS485 interface

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

Features

• 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 5 (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 RTC chip, supports scheduled tasks
• Onboard USB Type-C port for power supply, firmware downloading and debugging
• Onboard power supply screw terminal, supports 5V power supply only
• Onboard optocoupler isolation to prevent interference from external high-voltage circuit
• Onboard digital isolation to prevent interference from external signal
• Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply is required for the isolated terminal
• Onboard RS485 TX/RX indicators for monitoring the operating status of the module
• Rail-mounted protective 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 5 (LE) dual-mode wireless communication

Onboard multiple isolation protection circuits

Multiple protections, more safe and reliable

High quality 1-Ch relay, 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

Supports Arduino development

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

Application Example

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

Interface Description

What's On Board

1. ESP32-S3
   up to 240MHz operating frequency, with 2.4GHz WiFi and BLE
2. DC-DC power module
   supports up to 3.3V 2A output
3. Pin header
   for connecting to other functional modules
4. Power supply screw terminal
   supports DC 5V voltage input
5. USB Type-C port
   for module power supply, firmware downloading and USB communication
6. RTC battery header
   for connecting rechargeable RTC battery (SH1.0)
7. Onboard ceramic antenna
8. IPEX 1 connector
   for connecting external antenna, enabled via resoldering an onboard resistor
9. LED indicators
   PWR: Power indicator
   RELAY: Relay indicator, lights up when the Normally Open (NO) is closed
   RS485: lights up green when the RS485 port sends data; lights up blue when the RS485 port receives data

10. Optocoupler isolation
11. Power supply isolation
    Provides stable isolated voltage, no extra power supply is required for the isolated terminal
12. ESP32 BOOT button
13. ESP32 RESET button
14. TVS diode
    Effectively suppresses surge voltage and transient spike voltage in the circuit
15. Quality relay
    contact rating: ≤10A 250V AC or ≤10A 30V DC
16. RS485 matching resistor
    Onboard reserved 120R matching resistor, enabled via jumper
17. RS485 and relay terminal
18. PCF85063 RTC chip
19. 16MB Flash
20. Digital isolation
    prevents interference from external signal
21. RS485 transceiver chip
22. ME6217C33M5G
    Low dropout regulator, 800mA output (Max.)
23. Thicken track for large current

Enclosure Design

Protection Enclosure With Rail-Mount Support, Easy To Install, Safe To Use

Outline dimensions

Support Batch Customization

Support software and hardware customization
Including hardware interface, LOGO, label, case and web page, etc.

Resources & Services

Wiki: www.waveshare.com/wiki/ESP32-S3-Relay-1CH

Weight: 0.065 kg

1. ESP32-S3-Relay-1CH x1
2. SH1.0 4PIN cable ~150mm x1
3. Screwdriver x1

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