{"product_id":"4-channel-esp8266-wireless-wifi-relay-module-esp-12f-development-board-ac-dc-5v-7-28v-5-80v-e-welink-app-remote-control","title":"4 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board AC\/DC 5V\/7-28V\/5-80V E-WeLink APP Remote Control","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ediymore\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\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\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\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eProduct features:\u003c\/p\u003e\u003cp\u003e1. Onboard mature and stable ESP-12F WIFI module, with a large capacity of 4M BYTE FLASH;\u003c\/p\u003e\u003cp\u003e2. All I\/O ports and UART program download ports of the WIFI module are exported for easy secondary development;\u003c\/p\u003e\u003cp\u003e3. Onboard AC-DC switching power module, supporting AC90-250V\/DC7-30V\/5V power supply mode;\u003c\/p\u003e\u003cp\u003e4. On board WIFI module RST reset button;\u003c\/p\u003e\u003cp\u003eESP-12F supports the use of development tools such as ECLIPSE\/ARDUINO IDE and provides ARDUINO opening\u003c\/p\u003e\u003cp\u003eDevelop reference programs in the environment;\u003c\/p\u003e\u003cp\u003e6. Onboard 4-channel 5V relay, outputting switch signals, suitable for controlling loads with operating voltages below AC250V\/Dc30V;\u003c\/p\u003e\u003cp\u003e7. Onboard power indicator light, 1 programmable LED and relay indicator light.\u003c\/p\u003e\u003cp\u003eInterface Description\u003c\/p\u003e\u003cp\u003eBurning mouth:\u003c\/p\u003e\u003cp\u003eThe GND, RX, TX, and 5V of ESP8266 are respectively connected to the GND, TX, and RX of the external TTL serial module,\u003c\/p\u003e\u003cp\u003e5V， When downloading, IO0 needs to be connected to GND. After the download is complete, disconnect the connection between IO0 and GND;\u003c\/p\u003e\u003cp\u003eRelay output terminal:\u003c\/p\u003e\u003cp\u003eNC: normally closed end, short circuited to COM before relay closing, suspended after closing;\u003c\/p\u003e\u003cp\u003eCOM: Public end;\u003c\/p\u003e\u003cp\u003eNO: Constant start, the relay is suspended before closing and short circuited to COM after closing.\u003c\/p\u003e\u003cp\u003eIntroduction to GPIO Export Ports\u003c\/p\u003e\u003cp\u003eARDUINO development environment setup\u003c\/p\u003e\u003cp\u003eESP8266 supports development tools such as ECLIPSE\/ARDUINOIDE, but using ARDUINO requires relative support\u003c\/p\u003e\u003cp\u003eSimple, here is the method for setting up the ARDUINO development environment:\u003c\/p\u003e\u003cp\u003e1. Install ARDUINO IDE 1.8.9 or the latest version;\u003c\/p\u003e\u003cp\u003e2. Open ARDUINO IDE, click on \"File\" in the menu bar - \"Preferences\", enter \"Preferences\", and then go to the \"Additional Development Board Manager\" website\u003c\/p\u003e\u003cp\u003eClick on 'Add URL' in the 'Address' section:\u003c\/p\u003e\u003cp\u003ehttp:\/\/arduino.esp8266.com\/stable\/package_esp8266com_index.json ,\u003c\/p\u003e\u003cp\u003e3. Click on \"Tools\" -\u0026gt;\"Development Board\" -\u0026gt;\"Development Board Manager\" in the menu bar, and then search for \"ESP8266\" to install ARDUINO\u003c\/p\u003e\u003cp\u003eESP8266 support package 2.5.2 or the latest version\u003c\/p\u003e\u003cp\u003eNote: Due to the download URL being from overseas, the access speed is relatively slow, and there may be download errors. Please wait for the network to improve\u003c\/p\u003e\u003cp\u003eJust try a few more times in this situation.\u003c\/p\u003e\u003cp\u003eProgram Download\u003c\/p\u003e\u003cp\u003e1. Use jumper caps\/DuPont wires to connect the IO0 and GND pins, and prepare a TTL serial port module (such as FT232) to plug into the computer\u003c\/p\u003e\u003cp\u003eUSB， The connection method between the serial module and the development board is as follows:\u003c\/p\u003e\u003cp\u003e2. Click on the tools in the menu bar - Development Board, and select ESPINO (ESP-12 MODULE) as the development board\u003c\/p\u003e\u003cp\u003e3. Open the program you want to download, click on \"Tools\" in the menu bar, select \"Port\" and choose the correct port number\u003c\/p\u003e\u003cp\u003e4. After clicking \"Upload\", the program will automatically compile and download to the development board, as follows:\u003c\/p\u003e\u003cp\u003e5. Finally, disconnect the connection between IO0 and GND, and the development board can be powered on 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\u003e1X relay module\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9365cc315e304cf697b9640c4b4bdad9w.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf8c6ce0eb9ad448190662a00371e1a00J.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S8f19e00ac9394b46b96600f6aab14679O.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0549d54ad3f0494ca1db950af786975dL.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se62250dd82254f2e8f9668dc605bed52M.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S387be8c773ec44fba4a9510c6ed5b56d4.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sbdf19c89ca9b411aa31d2bdf9e3d41d2J.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb4b0c45eb7004167a5f2a8a26bdca23bw.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd5b2d662b3ab47b097fdbf7cc07d2bdfe.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdc6826fb9cd045f295b762592da06e81N.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9b80cb20d2e7419db4019b7495818123k.png\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"ESP8266","offer_id":55502495383851,"sku":"14:175#ESP8266","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S0549d54ad3f0494ca1db950af786975dL.webp?v=1788922990","url":"https:\/\/yoeruyo.com\/products\/4-channel-esp8266-wireless-wifi-relay-module-esp-12f-development-board-ac-dc-5v-7-28v-5-80v-e-welink-app-remote-control","provider":"Yoeruyo","version":"1.0","type":"link"}