{"product_id":"esp8266-esp-01s-5v-wifi-relay-module-smart-home-remote-control","title":"ESP8266 ESP-01S 5V WiFi Relay Module for Smart Home Control","description":"\n\u003ch2\u003eESP8266 ESP-01S 5V WiFi Relay Module – Smart Home Automation\u003c\/h2\u003e\n\u003cp\u003eTake control of your home automation projects with the \u003cstrong\u003eESP8266 ESP-01S 5V WiFi Relay Module\u003c\/strong\u003e. Designed around the powerful ESP-01S Wi-Fi microcontroller, this compact intelligent relay module lets you build your own smart switch and control connected devices remotely — right from your smartphone app or custom Arduino sketch.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the ESP-01S WiFi Relay Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESP-01S Upgraded Design:\u003c\/strong\u003e Unlike the original ESP-01, the ESP-01S board includes a built-in 10K pull-up resistor, making it more stable and easier to integrate into your DIY smart home projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Voltage Compatibility:\u003c\/strong\u003e Supports 10A 250VAC, 10A 125VAC, 10A 30VDC, and 10A 28VDC — versatile enough for a wide range of household and low-voltage circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5V Operation:\u003c\/strong\u003e Runs on a standard 5V supply; relay (5V or 3V) is included with the module.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWireless Control:\u003c\/strong\u003e Built-in ESP8266 Wi-Fi enables seamless wireless remote control without messy wiring or additional hardware.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY \u0026amp; Maker Ready:\u003c\/strong\u003e Fully compatible with Arduino IDE and similar platforms — ideal for IoT enthusiasts, hobbyists, and smart home builders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in 4 Color Options:\u003c\/strong\u003e Choose the look that fits your setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eModule: ESP8266 ESP-01S\u003c\/li\u003e\n  \u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n  \u003cli\u003eRelay Ratings: 10A 250VAC \/ 10A 125VAC \/ 10A 30VDC \/ 10A 28VDC\u003c\/li\u003e\n  \u003cli\u003eRelay included: 5V or 3V (shipped with device)\u003c\/li\u003e\n  \u003cli\u003ePull-up Resistance: 10K (pre-installed on ESP-01S board)\u003c\/li\u003e\n  \u003cli\u003eConnectivity: 802.11 b\/g\/n Wi-Fi\u003c\/li\u003e\n  \u003cli\u003eCompatible: Arduino, ESP IDE, phone app control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSmart home automation systems\u003c\/li\u003e\n  \u003cli\u003eIoT (Internet of Things) DIY builds\u003c\/li\u003e\n  \u003cli\u003eRemote-controlled switches and appliances\u003c\/li\u003e\n  \u003cli\u003eArduino and ESP8266 development projects\u003c\/li\u003e\n  \u003cli\u003eMakers, hobbyists, and electronics enthusiasts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ Important Note for Beginners:\u003c\/strong\u003e This module requires basic electronics knowledge. Damage caused by incorrect wiring or power supply is not covered under after-sales service. Please review the datasheet and wiring diagrams carefully before use.\u003c\/p\u003e\n\n\u003cp\u003eFor guidance on safe use of electrical components and home automation, visit the U.S. Consumer Product Safety Commission (CPSC) for product safety information, and \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA's Electrical Safety page\u003c\/a\u003e for best practices when working with electrical circuits.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the ESP8266 ESP-01S 5V WiFi Relay Module used for?\u003c\/h4\u003e\n\u003cp\u003eA: The ESP8266 ESP-01S 5V WiFi Relay Module is an intelligent switch module designed for smart home automation and IoT projects. It allows you to remotely control connected electrical devices via Wi-Fi using a smartphone app or Arduino-based code, making it ideal for DIY smart home builders and electronics enthusiasts.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the ESP-01 and the ESP-01S?\u003c\/h4\u003e\n\u003cp\u003eA: The ESP-01S is an upgraded version of the original ESP-01. The key difference is that the ESP-01S board includes a built-in 10K pull-up resistor, which improves stability and simplifies wiring. All other core parameters and performance characteristics are essentially the same between the two versions.\u003c\/p\u003e\n\u003ch4\u003eQ: What relay voltages are supported, and is the relay included?\u003c\/h4\u003e\n\u003cp\u003eA: This module supports 10A 250VAC, 10A 125VAC, 10A 30VDC, and 10A 28VDC ratings. A relay (either 5V or 3V) is included with the module when shipped, so you have everything you need to get started with your smart switch project.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The ESP8266 ESP-01S WiFi Relay Module is fully compatible with the Arduino IDE and other ESP8266-supported development environments. It can be programmed and integrated into a wide range of Arduino and IoT smart home projects.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the ESP8266 ESP-01S 5V WiFi Relay Module used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ESP8266 ESP-01S 5V WiFi Relay Module is an intelligent switch module designed for smart home automation and IoT projects. 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