{"product_id":"esp8266-wifi-4-channel-relay-module-esp-12f-development-board-ac-dc-switching-power-supply-module","title":"ESP8266 WiFi 4-Channel Relay Module ESP-12F Development Board AC-DC Switching Power Supply Module","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGaqqee\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLow Power Consumption\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDetails Page\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTQFP\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eQuantity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDetails Page\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRelay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eProduct Features:\u003c\/p\u003e\u003cp\u003e1. On-board mature and stable ESP-12F WiFi module with large-capacity 4MB FLASH;\u003c\/p\u003e\u003cp\u003e2. All I\/O ports of the WiFi module and the UART programming port are brought out for convenient secondary development;\u003c\/p\u003e\u003cp\u003e3. On-board AC-DC switching power supply module supporting AC 90-250V\/DC 7-30V\/5V input;\u003c\/p\u003e\u003cp\u003e4. On-board reset button for the Wi-Fi module;\u003c\/p\u003e\u003cp\u003e5. ESP-12F supports development tools such as Eclipse\/Arduino IDE, with reference programs provided for the Arduino development environment;\u003c\/p\u003e\u003cp\u003e6. On-board 4x 5V relays for outputting switch signals, suitable for controlling loads with operating voltages up to AC250V\/DC30V;\u003c\/p\u003e\u003cp\u003e7. On-board power indicator, 1 programmable LED, and relay status indicator.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eInterface Specifications:\u003c\/p\u003e\u003cp\u003eProgramming Port:\u003c\/p\u003e\u003cp\u003eESP8266's GND, RX, TX, and 5V terminals connect to the external TTL serial module's GND, TX, RX, and 5V respectively. During download, IO0 must be connected to GND; disconnect IO0 from GND after download completion.\u003c\/p\u003e\u003cp\u003eRelay Output Terminals:\u003c\/p\u003e\u003cp\u003eNC: Normally Closed terminal. Shorted to COM before relay engagement; left floating after engagement.\u003c\/p\u003e\u003cp\u003eCOM: Common terminal.\u003c\/p\u003e\u003cp\u003eNO: Normally Open terminal. Floating before relay engagement; shorted to COM after engagement.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eGPIO Pinout Overview:\u003c\/p\u003e\u003cp\u003eSetting Up the Arduino Development Environment\u003c\/p\u003e\u003cp\u003eThe ESP8266 supports development tools such as Eclipse and Arduino IDE. Using Arduino is relatively straightforward. The following outlines the method for setting up the Arduino development environment:\u003c\/p\u003e\u003cp\u003e1. Install Arduino IDE version 1.8.9 or the latest release;\u003c\/p\u003e\u003cp\u003e2. Open Arduino IDE, navigate to File \u0026gt; Preferences in the menu bar. Within Preferences, click Add URL under ‘Additional Board Manager URLs’:\u003c\/p\u003e\u003cp\u003ehttp:\/\/arduino.esp8266.com\/stable\/package_esp8266com_index.json,\u003c\/p\u003e\u003cp\u003e3. Navigate to Tools \u0026gt; Board \u0026gt; Board Manager in the menu bar. Search for ‘ESP8266’ and install the Arduino support package 2.5.2 or the latest version for the ESP8266.\u003c\/p\u003e\u003cp\u003eNote: As the download source is overseas, access speeds may be slow and download errors may occur. Simply try again when network conditions improve.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eProgramme Download:\u003c\/p\u003e\u003cp\u003e1. Connect IO0 and GND pins using jumper caps\/DuPont wires. Prepare a TTL serial module (e.g., FT232) and plug it into your computer's USB port. Connect the serial module to the development board as follows:\u003c\/p\u003e\u003cp\u003e2. Click Tools → Board in the menu bar, then select ESPINO (ESP-12 MODULE) as the development board.\u003c\/p\u003e\u003cp\u003e3. Open the program to be downloaded. Click Tools → Port in the menu bar and select the correct port number.\u003c\/p\u003e\u003cp\u003e4. Click ‘Upload’. The program will automatically compile and download to the development board, as shown below:\u003c\/p\u003e\u003cp\u003e5. Finally, disconnect the IO0 and GND connection. Power the development board again or press the reset button to run the program.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eProduct List:\u003c\/p\u003e\u003cp\u003eRelay Module*1\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdcec8fc3d4b34bb2af407cb89a3fc72dO.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3f8d674ae14e4f5b8594e1a1c4f981dac.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Scb2fec8f7c144b70b714b6d0139d7dc47.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6ed67dcf4e2f499f92bc9c69f8e7a2efE.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S59404c56f8ac4bd48d431b2e844e64d1s.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc7728a191bd441efb243cbe2f282d22a2.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"4-Channel","offer_id":55502588903723,"sku":"14:29#4-Channel","price":38.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/Sdcec8fc3d4b34bb2af407cb89a3fc72dO.webp?v=1788923059","url":"https:\/\/yoeruyo.com\/products\/esp8266-wifi-4-channel-relay-module-esp-12f-development-board-ac-dc-switching-power-supply-module","provider":"Yoeruyo","version":"1.0","type":"link"}