2.4 GHz ESP8285 433 Mhz 4 Channel RF Transmitter, Dual Mode Wireless and WiFi Control Switch 220V four Relay
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![2.4 GHz ESP8285 433 Mhz 4 Channel RF Transmitter, Dual Mode Wireless and WiFi Control Switch 220V four Relay]()
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Equipped with four high-quality relays, the device supports the switching of 220V AC appliances, making it ideal for controlling lights, fans, pumps, motors, and other electrical devices. The ESP8285 microcontroller, an upgraded version of the ESP8266, enables WiFi connectivity, ensuring compatibility with voice assistants like Alexa and Google Home. The 433 MHz RF module provides a reliable manual control option without requiring an active internet connection.
The dual-mode operation allows flexibility—users can operate the switch via a smartphone app when connected to WiFi or using an RF remote when offline. The onboard mode selection buttons enable easy configuration, while the built-in AC-DC power supply ensures stable operation without requiring an external adapter. With its compact design, energy efficiency, and robust wireless communication, this 4-channel WiFi + RF relay switch is an excellent choice for home automation, industrial control, and IoT-based smart switching solutions.
The H3V4F is a compact and efficient 433 MHz wireless receiver module designed for various remote control and wireless communication applications. Operating on the 433 MHz frequency band, it utilizes Amplitude Shift Keying (ASK) modulation to receive data. The module offers high sensitivity, with a typical operating voltage of 3.3V, making it suitable for battery-powered devices. Its small form factor allows for easy integration into space-constrained projects. Common applications include remote controls, home automation systems, and wireless security devices
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2.4 GHz ESP8285 433 Mhz 4 Channel RF Transmitter, Dual Mode Wireless and WiFi Control Switch 220V four Relay
Available:In Stock
- Product SKU: KG743
₹ 2,225
₹ 2,499
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Warehouse Details
Specification
Description
2.4 GHz ESP8285 433 Mhz 4 Channel RF Transmitter, Dual Mode Wireless and WiFi Control Switch 220V four Relay
The 2.4 GHz ESP8285 + 433 MHz 4-Channel RF Transmitter is a dual-mode wireless control switch designed for seamless integration into smart home automation and industrial control applications. This advanced module operates on both WiFi (2.4 GHz) and RF (433 MHz) frequencies, allowing users to control connected appliances remotely via a mobile app (such as Tuya, Blynk, or a custom IoT platform) and RF remote transmitters.Equipped with four high-quality relays, the device supports the switching of 220V AC appliances, making it ideal for controlling lights, fans, pumps, motors, and other electrical devices. The ESP8285 microcontroller, an upgraded version of the ESP8266, enables WiFi connectivity, ensuring compatibility with voice assistants like Alexa and Google Home. The 433 MHz RF module provides a reliable manual control option without requiring an active internet connection.
The dual-mode operation allows flexibility—users can operate the switch via a smartphone app when connected to WiFi or using an RF remote when offline. The onboard mode selection buttons enable easy configuration, while the built-in AC-DC power supply ensures stable operation without requiring an external adapter. With its compact design, energy efficiency, and robust wireless communication, this 4-channel WiFi + RF relay switch is an excellent choice for home automation, industrial control, and IoT-based smart switching solutions.
The H3V4F is a compact and efficient 433 MHz wireless receiver module designed for various remote control and wireless communication applications. Operating on the 433 MHz frequency band, it utilizes Amplitude Shift Keying (ASK) modulation to receive data. The module offers high sensitivity, with a typical operating voltage of 3.3V, making it suitable for battery-powered devices. Its small form factor allows for easy integration into space-constrained projects. Common applications include remote controls, home automation systems, and wireless security devices
Technical Details
- Microcontroller: ESP8285 WiFi Module
- WiFi Frequency: 2.4 GHz
- RF Control: 433 MHz RF Receiver
- Relay Channels: 4-Channel Relay (Individually Controlled)
- Relay Voltage: Supports 110V-220V AC and DC load switching
- Relay Current: 10A @ 250V AC / 10A @ 30V DC
- Control Modes: WiFi (Mobile App), RF Remote (433 MHz)
- Voice Assistant: Compatible with Alexa, Google Assistant (via Tuya/MQTT)
- App Compatibility: Tuya, Blynk, MQTT, Home Assistant
- Power Supply: Built-in AC-DC module, supports 110V-220V AC input
- Connectivity: WiFi (802.11 b/g/n) & RF 433 MHz
- Security: WPA/WPA2 Encryption for Secure WiFi Connection
- Working Temperature: -20°C to 60°C
- Size:110 x 86 x 37mm
PSF-B04 Features
- Compact design with ESP8285 for stable and fast WiFi connections.
- Supports Smart Config & OTA updates (Over-the-Air firmware updates).
- Works with Tuya, Blynk, and MQTT for seamless IoT integration.
- 433 MHz RF Receiver for offline remote control.
- Integrated AC-DC power supply for direct connection to mains power.
Wiring & Connections
- L, N (AC Input): Connects to 110V-220V AC power supply
- NO (Normally Open): Connects to the appliance load when relay is activated
- NC (Normally Closed): Connects to the appliance load when relay is deactivated
- COM (Common): Common connection for relay output
- RF Antenna: 433 MHz RF Receiver Module for manual remote control
- WiFi Antenna: Onboard antenna for stable 2.4 GHz communication
Tuya Smart App Setup (For Cloud Control & Alexa Support)
- Download & Install Tuya Smart App (Android/iOS).
- Register/Login and select "Add Device" → WiFi Smart Switch.
- Put the module in WiFi pairing mode by pressing the Mode Button for 5 seconds.
- Select a 2.4 GHz WiFi network and enter your credentials.
- Control devices from your mobile app and integrate with Alexa/Google Home.
Blynk App Setup (For DIY IoT Control)
- Download & Install Blynk App and create a new project.
- Select ESP8285 as the microcontroller.
- Configure virtual pins (V1, V2, V3, V4) for relay control.
- Upload the Blynk firmware to the module using Arduino IDE.
- Control the relay switches from the Blynk mobile app.
MQTT/Home Assistant Setup (For Advanced IoT Automation)
- Install MQTT Broker (Mosquitto) on your server (Raspberry Pi, PC, or Cloud).
- Configure topics for each relay (e.g.,
home/switch/relay1for ON/OFF commands). - Set up Home Assistant integration for automation.
- Use Node-RED or Python scripts to control relays remotely.
Physical Attributes
- Size:110 x 86 x 37mm
- Weight(g):177
Package Includes
- 220V 4-Road Mobile Phone Remote Switch Module
- 4-Key 433M Wireless Black Metal Remote Control
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