Description
Smart Wireless Relay Module for WiFi and Bluetooth Automation Projects
The ESP8266 ESP-01 WiFi Relay Module and 12V Bluetooth Relay Module are versatile solutions for wireless control of electrical appliances. Designed for smart home automation and IoT applications, these modules allow users to remotely switch devices such as lights, fans, and motors using WiFi or Bluetooth.
Available in multiple variants including 1 channel, 2 channel, 4 channel WiFi relays and a 12V 4 channel Bluetooth relay, these modules provide flexibility for different control requirements. With reliable communication, optocoupler isolation, and easy integration, they are ideal for both DIY and professional automation systems.
Key Features
- Wireless control via WiFi or Bluetooth.
- Multiple channel options for flexible control.
- ESP8266 based WiFi control with ESP-01 module.
- Bluetooth module with mobile app control.
- Supports AP STA and AP plus STA modes WiFi.
- Optocoupler isolation for safe operation.
- High quality relays with up to 10A switching capacity.
- Compatible with Arduino Raspberry Pi and IoT systems.
- LED indicators for status monitoring.
- Easy installation and setup.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Wireless Relay Module |
| Variants | WiFi Relay 1CH 2CH 4CH and Bluetooth Relay 4CH |
| Controller | ESP8266 ESP-01 WiFi Variant N76E003 STM8S003 Bluetooth Variant |
| Channels | 1CH 2CH 4CH WiFi 4CH Bluetooth |
| Operating Voltage | 5V DC WiFi Variant 12V DC Bluetooth Variant |
| Communication | WiFi 802.11 b g n Bluetooth 2.1 |
| Control Mode | TCP UDP AT Commands WiFi Mobile App Bluetooth |
| WiFi Modes | AP STA AP+STA |
| Control Range | Up to 10 meters Bluetooth |
| Relay Type | SRD-05VDC-SL-C or Equivalent |
| Maximum Load | 10A 250V AC or 10A 30V DC |
| Isolation | Optocoupler Protection |
| Indicators | LED Status Indicators |
| Relay Life | Up to 100000 cycles |
| Operating Temperature | -20°C to +70°C |
Applications
- Smart home automation.
- Remote appliance control.
- IoT device switching.
- Lighting and fan control.
- Industrial automation systems.
- DIY electronics projects.
- Wireless control systems.
- Robotics and embedded systems.
Precautions
- Ensure correct voltage supply for selected variant.
- Do not exceed relay load rating.
- Use proper insulation during wiring.
- Install in dry and ventilated area.
- Avoid short circuits during connections.
- Keep away from children and moisture.







