{"product_id":"mobile-phone-app-controlled-wifi-smart-switch-2-x-220v-remote-home-appliance-controller-smart-wifi-with-wireless-remote-control","title":"2.4 GHz ESP8285 5V Relay 2 Channel 220V AC Control Board Remote Switch Receiver WiFi Intelligent","description":"\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003e2.4 GHz ESP8285 5V Relay 2 Channel 220V AC Control Board Remote Switch Receiver WiFi Intelligent\u003c\/span\u003e\u003c\/h2\u003e\nThis WiFi Smart Switch Relay Module is a remote-controlled switch that allows users to turn electrical appliances ON\/OFF using a mobile app. It is powered by an ESP8266 WiFi module, making it ideal for home automation, IoT projects, and smart control systems. The built-in dual relays enable switching of high-voltage AC appliances up to 10A at 250V AC.\u003cbr\u003e\u003cbr\u003eThis module is widely used in home automation, remote power control, and industrial applications, providing a cost-effective, energy-efficient, and reliable smart switching solution.\u003cbr\u003e\u003cbr\u003eThe PSF-B04 is a 4-channel Wi-Fi control module designed for IoT applications, enabling wireless control of devices through Wi-Fi connectivity. It integrates an ESP8285 chip, which combines the capabilities of the ESP8266 with built-in flash memory, facilitating seamless wireless communication.\n\u003cdiv\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eTechnical Details\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eWiFi Module: ESP8266 (Integrated with antenna for extended range)\u003c\/li\u003e\n\u003cli\u003eRelay Type: SRD-05VDC-SL-C\u003c\/li\u003e\n\u003cli\u003eRelay Voltage: 5V DC\u003c\/li\u003e\n\u003cli\u003eRelay Output: 10A @ 250V AC \/ 10A @ 30V DC\u003c\/li\u003e\n\u003cli\u003eControl Mode: WiFi App + Physical Buttons\u003c\/li\u003e\n\u003cli\u003eInput Voltage: 110V-220V AC (Integrated AC to DC power module)\u003c\/li\u003e\n\u003cli\u003eOutput Terminals: NO (Normally Open), COM (Common), NC (Normally Closed)\u003c\/li\u003e\n\u003cli\u003eAntenna Type: Coil-type onboard antenna for extended WiFi range\u003c\/li\u003e\n\u003cli\u003eButtons: S1, S2 (Manual Control), Mode Button (Configuration)\u003c\/li\u003e\n\u003cli\u003eMicrocontroller: ESP8285\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: Typically 5V DC\u003c\/li\u003e\n\u003cli\u003eOutput Channels: 2\u003c\/li\u003e\n\u003cli\u003eCommunication Protocol: Wi-Fi (2.4 GHz)\u003c\/li\u003e\n\u003cli\u003eAntenna: Integrated onboard antenna for extended range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eWorking Principle of the WiFi Relay Module (ESP8266-Based)\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowering the Module:\u003c\/strong\u003e Operates on a 110V-220V AC power supply. It contains an AC to DC converter that steps down the voltage to 5V DC to power both the ESP8266 WiFi module and the relay circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi Communication:\u003c\/strong\u003e The ESP8266 module connects to a WiFi network and communicates via IoT platforms like Blynk, Tuya, or custom applications. Users can send ON\/OFF commands from their mobile phones or other networked devices. The module can also be configured to work with smart home assistants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Switching Mechanism:\u003c\/strong\u003e The module includes two relays that can control electrical appliances. Each relay has:\n\u003cul\u003e\n\u003cli\u003eNO (Normally Open) Terminal → Connects when the relay is activated.\u003c\/li\u003e\n\u003cli\u003eNC (Normally Closed) Terminal → Disconnects when the relay is activated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Control Buttons:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eS1 \u0026amp; S2 Buttons:\u003c\/strong\u003e Allow manual control of the relays without using WiFi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMode Button:\u003c\/strong\u003e Used for WiFi configuration or to reset the module to factory settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eWiring \u0026amp; Connections\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eL, N (AC Input): Connect 110V-220V AC power supply\u003c\/li\u003e\n\u003cli\u003eNO (Normally Open): Connects to appliance load when relay is activated\u003c\/li\u003e\n\u003cli\u003eNC (Normally Closed): Connects to appliance load when relay is deactivated\u003c\/li\u003e\n\u003cli\u003eCOM (Common): Common connection for relay output\u003c\/li\u003e\n\u003cli\u003e5V \u0026amp; GND (ESP8266): Provides power to ESP8266 WiFi Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eMobile App Control Setup (Using Blynk or Tuya Smart App)\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eDownload \u0026amp; Install App:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eBlynk App (for DIY IoT control) or\u003c\/li\u003e\n\u003cli\u003eTuya Smart App (for pre-configured IoT solutions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eCreate a New Project:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eSelect ESP8266 as the microcontroller.\u003c\/li\u003e\n\u003cli\u003eChoose WiFi as the connection type.\u003c\/li\u003e\n\u003cli\u003eCopy the Auth Token (sent to your email).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eConnect WiFi Module to Network:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003ePower the module and press the Mode button to enter configuration mode.\u003c\/li\u003e\n\u003cli\u003eConnect to the WiFi hotspot created by the module.\u003c\/li\u003e\n\u003cli\u003eOpen the Blynk\/Tuya app and configure WiFi credentials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eControl Devices from Mobile:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eAdd switch widgets to control the relays.\u003c\/li\u003e\n\u003cli\u003eAssign V1 \u0026amp; V2 to the relay pins.\u003c\/li\u003e\n\u003cli\u003eTap ON\/OFF to control appliances remotely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eWireless Control – Turn appliances ON\/OFF from anywhere using WiFi.\u003c\/li\u003e\n\u003cli\u003eDual Relays – Control two different devices at the same time.\u003c\/li\u003e\n\u003cli\u003eVoice Assistant Support – Compatible with Alexa \u0026amp; Google Assistant (via Tuya).\u003c\/li\u003e\n\u003cli\u003eTimer Function – Set schedules to automate switching.\u003c\/li\u003e\n\u003cli\u003eManual Override – Built-in buttons for local control without an app.\u003c\/li\u003e\n\u003cli\u003eEnergy Efficient – Low power consumption.\u003c\/li\u003e\n\u003cli\u003eStrong WiFi Signal – Enhanced antenna for stable connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eApplications\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eSmart Home Automation – Control lights, fans, air conditioners, and home appliances.\u003c\/li\u003e\n\u003cli\u003eSmart Irrigation Systems – Control water pumps remotely.\u003c\/li\u003e\n\u003cli\u003eIndustrial Automation – Switch motors, alarms, and control panels.\u003c\/li\u003e\n\u003cli\u003eSecurity Systems – Automate door locks, sirens, and CCTV power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eSize (in the control panel) : 70 x 50 x 23 mm (length x width x height).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003e1 x 2.4 GHz ESP8285 5V Relay 2 Channel 220V AC Control Board Remote Switch Receiver WiFi Intelligent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":40708949278901,"sku":"KG742","price":1799.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/20250825_1723_SmartHomeAutomationKit_remix_01k3gh3bsmebtt7wp5gazvk7be_2.jpg?v=1756123103","url":"https:\/\/kitsguru.com\/fr\/products\/mobile-phone-app-controlled-wifi-smart-switch-2-x-220v-remote-home-appliance-controller-smart-wifi-with-wireless-remote-control","provider":"KitsGuru","version":"1.0","type":"link"}