{"product_id":"esp8266-wifi-24-channel-relay-module-board-dc-5v-12v-24v","title":"ESP8266 WiFi 24-Channel Relay Module Board DC 5V\/12V\/24V","description":"\n\u003ch2\u003eESP8266 WiFi 24-Channel Relay Development Board – DC 5V \/ 12V \/ 24V\u003c\/h2\u003e\n\u003cp\u003eTake your smart home automation and IoT projects to the next level with this powerful \u003cstrong\u003eESP8266 ESP-12F WiFi 24-Channel Relay Module Board\u003c\/strong\u003e. Designed for makers, engineers, and developers, this versatile development board gives you wireless control over up to 24 independent relay channels — all from your network. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESP-12F WiFi Module Onboard:\u003c\/strong\u003e Stable, mature, and loaded with 4 MByte Flash for ample program storage and reliable wireless connectivity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Power Supply:\u003c\/strong\u003e Accepts DC 5V, 12V, or 24V input — compatible with a wide range of power configurations in home, lab, or industrial setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24 Independent Relay Channels:\u003c\/strong\u003e Each relay is rated at 10A and supports output switching for loads up to AC 250V \/ DC 30V, making it suitable for lights, motors, solenoids, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull I\/O Breakout:\u003c\/strong\u003e All I\/O ports and the UART program download interface are exposed, enabling easy secondary development and custom firmware.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e74HC595 Shift Register Control:\u003c\/strong\u003e Three onboard 74HC595 shift registers efficiently drive all 24 relay channels while minimizing GPIO usage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino \u0026amp; Eclipse IDE Compatible:\u003c\/strong\u003e Includes reference code for the Arduino development environment — get started quickly with minimal setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard Controls \u0026amp; Indicators:\u003c\/strong\u003e Features a WiFi module RST reset button, one programmable button, power indicator LED, individual relay status LEDs, and a built-in module LED for easy status monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for Smart Home \u0026amp; IoT:\u003c\/strong\u003e Perfect for wireless relay control, home automation, ESP8266 secondary development learning, and custom IoT applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiFi Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESP-12F (ESP8266)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 MByte\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 5V \/ 12V \/ 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V\/10A, 12V\/10A, 24V\/10A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Switching Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 250V \/ DC 30V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShift Registers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 × 74HC595\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported IDEs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArduino IDE, Eclipse\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × ESP8266 ESP-12F 24-Channel Relay Module Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePlease Note\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eColors may appear slightly different from product images due to monitor calibration and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow a measurement tolerance of 1 mm – 1 cm due to manual measuring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLearn More About IoT \u0026amp; Smart Home Technology\u003c\/h3\u003e\n\u003cp\u003eFor general guidance on safe electrical wiring and load switching in DIY projects, visit the U.S. Consumer Product Safety Commission – Electrical Safety resource center.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power supply options does this ESP8266 24-channel relay board support?\u003c\/h4\u003e\n\u003cp\u003eA: This relay development board supports three input voltage levels: DC 5V, DC 12V, and DC 24V. This flexibility makes it easy to integrate into a variety of projects and enclosures without needing a dedicated voltage regulator.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I program this board using the Arduino IDE?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The ESP-12F module is fully compatible with the Arduino IDE as well as Eclipse. Reference programs for the Arduino development environment are included, so you can start building and uploading custom firmware right away.\u003c\/p\u003e\n\u003ch4\u003eQ: What types of loads can the relay channels control?\u003c\/h4\u003e\n\u003cp\u003eA: Each of the 24 relay channels is rated at 10A and can switch loads operating at up to AC 250V or DC 30V. This makes the board suitable for controlling lighting circuits, fans, motors, solenoids, and many other common home automation or industrial loads.\u003c\/p\u003e\n\u003ch4\u003eQ: Are all GPIO and UART pins accessible for custom development?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. All I\/O ports of the ESP-12F WiFi module and the UART program download interface are fully broken out on the board, giving you complete access for secondary development, debugging, and integration with sensors or other peripherals.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power supply options does this ESP8266 24-channel relay board support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This relay development board supports three input voltage levels: DC 5V, DC 12V, and DC 24V. This flexibility makes it easy to integrate into a variety of projects and enclosures without needing a dedicated voltage regulator.\"}}, {\"@type\": \"Question\", \"name\": \"Can I program this board using the Arduino IDE?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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