{"product_id":"esp8266-esp-01-wifi-relay-1-2-4-way-channel-5v-12v-things-smart-home-remote-control-switch-esp01-wireless-module-phone-app","title":"ESP8266 ESP-01 WiFi Relay 1 2 4 Way Channel 5V 12V Things Smart Home Remote Control Switch ESP01 Wireless Module Phone APP","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\"\u003eEC Buying\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\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\"\u003enormal\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\"\u003emodule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eVoltage Regulator\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\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:56px;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:flex;height:56px;box-sizing:border-box' class=\"title--wrap--NWOaiSp description--title--NMh4UiD\" align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:inline-block;height:56px;box-sizing:border-box\" class=\"title--text--Otu0bLr\"\u003e\u003ch2 style=\"font-size:24px;font-weight:700;color:rgb(25, 25, 25);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;display:inline-block;box-sizing:border-box\" class=\"title--title--O6xcB1q\"\u003eDescription\u003c\/h2\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;position:relative;box-sizing:border-box' class=\"extend--wrap--yXwoDbO\" align=\"start\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;overflow:hidden;position:relative;box-sizing:border-box\" class=\"extend--content--VuIQZia\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv id=\"product-description\" style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:944px;overflow:hidden;position:relative;box-sizing:border-box\" class=\"description--product-description--Mjtql28\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"description--origin-part--rWy05pE\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\" class=\"detailmodule_html\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\" class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp style=\"line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eThe ESP8266 four-channel WIFI relay module uses ESP-01 as the WIFi module. With the mature and stable 8-bit MCU chip, only a simple configuration process can realize the wireless control of the relay in the local area network using the mobile phone APP\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"color:rgb(255, 0, 0)\"\u003e\u003cu\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eParameter:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eOnboard processor: STM8S103 and ESP-01WIFI module\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eOperating mode:\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eMode 1: The mobile phone is directly mounted on the WIFI module;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eMode 2: The mobile phone and WIFI module are loaded on the router at the same time;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eAdditional function: It can also be used as a USB relay when ESP-01 is unplugged.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"color:rgb(255, 0, 0)\"\u003e\u003cu\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTransmission Distance:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(1) In an open environment, when the mobile phone is mounted on the win module, the maximum stable transmission distance is 100m;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(2) When the WIFI module and mobile phone are installed on the router at the same time, the transmission distance depends on the signal strength of the router.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eFunction: Use Smartconfig technology to complete ESP-01 on mobile phone APP\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eWIFI module account password configuration, the configured account and password have power-off memory function;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eOnboard: 10A \/ 250V AC 10A \/ 30V DC relay, which can be connected 100,000 times continuously,\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eWith two-pole effusion protection, short response time; on-board mode selection and real-time working status indicator.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eReserved: UART debugging interface and STM8 SWIM program download interface\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSuitable for mobile phones: Android phones, not for Apple phones\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"color:rgb(255, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:26px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e1 Way relay module 5v\/12v\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" src=\"https:\/\/ae01.alicdn.com\/kf\/Ha3fc368f8ee44c1db88bc79248e8c319c.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eIN +, IN-: 5V \/ 12V power input;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTX, RX: UART serial port pins;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e5V \/ 12V, GND, SWIM, NRST: STM8S microcontroller program download port\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eButton S1: mode switch, the default is mode 1\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eButton S2: Restore factory settings\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D2 and D4 (red light): relay working indicator, light when open\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D7 (red light): Mode 1 indicator\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D5 (blue light): Mode 2 indicator\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D6 (green light): working status indicator, described as follows:\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(1) When off, it means that it is self-configuring or loses connection with the router;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(2) When flashing at 0.5S, it means waiting for the APP to configure a WIFI account for the ESP-01 module\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eAnd password;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(3) When the 2S flashes slowly, it means the configuration is completed, waiting for the establishment of a TCP connection with the mobile phone;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(4) Steady light indicates successful establishment of TCP connection with mobile phone.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTwo reserved jumper caps: please plug them into the bottom end (that is, RX connected to RX1, TX connected to TX1) during normal use, if you want to use the USB to TTL serial port module to debug the ESP-01 module, please insert it to the top ( Otherwise there may be interference).\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM1: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC1: normally closed end, the relay is short-circuited with COM1 before pull-in, and hangs up after pull-in\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eN01: Normally open, the relay hangs before closing, and shorted to COM1 after closing.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM2: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC2: Normally closed end, the relay is short-circuited with COM2 before pull-in, and hangs up after pull-in;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eN02: Normally open, the relay hangs before closing, and shorted to COM2 after closing.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eRelay control command (hex hex format):\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eBeating relay: A0 01 01 A2\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eClose relay: A0 01 00 A1\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"color:rgb(255, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:26px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e2 Way relay module 5v\/12v\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" src=\"https:\/\/ae01.alicdn.com\/kf\/H2e2688fa63324b3b9717ac4503578bd9T.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eIN +, IN-: 5V \/ 12V power input;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTX, RX: UART serial port pins;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e5V \/ 12V, GND, SWIM, NRST: STM8S microcontroller program download port\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eButton S1: mode switch, the default is mode 1\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eButton S2: Restore factory settings\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D2 and D4 (red light): relay working indicator, light when open\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D7 (red light): Mode 1 indicator\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D5 (blue light): Mode 2 indicator\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D6 (green light): working status indicator, described as follows:\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(1) When off, it means that it is self-configuring or loses connection with the router;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(2) When flashing at 0.5S, it means waiting for the APP to configure a WIFI account for the ESP-01 module\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eAnd password;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(3) When the 2S flashes slowly, it means the configuration is completed, waiting for the establishment of a TCP connection with the mobile phone;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(4) Steady light indicates successful establishment of TCP connection with mobile phone.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTwo reserved jumper caps: please plug them into the bottom end (that is, RX connected to RX1, TX connected to TX1) during normal use, if you want to use the USB to TTL serial port module to debug the ESP-01 module, please insert it to the top ( Otherwise there may be interference).\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM1: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC1: normally closed end, the relay is short-circuited with COM1 before pull-in, and hangs up after pull-in\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eN01: Normally open, the relay hangs before closing, and shorted to COM1 after closing.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM2: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC2: Normally closed end, the relay is short-circuited with COM2 before pull-in, and hangs up after pull-in;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eN02: Normally open, the relay hangs before closing, and shorted to COM2 after closing.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eRelay control command (hex hex format):\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTurn on the first relay: AO 01 01 A 2\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eClose the first relay: A 0 01 00 A 1\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTurn on the second relay: A 0 02 01 A 3\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eClose the second relay: A 0 02 00 A 2\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"color:rgb(255, 0, 0)\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:26px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e4 Way relay module 5v\/12v\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cimg style=\"border:0px;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:100%;box-sizing:border-box\" src=\"https:\/\/ae01.alicdn.com\/kf\/H067f96dabeaa4281bc0465a7f60ec899D.jpg\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eIN +, IN-: 5V power input;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e5V, GND, TX, RX: UART serial port pins;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eSWIM, PIN8, NRST: reserved MCU program download port.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eButton S1: mode switch, the default is mode 1\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eButton S2: Restore factory settings\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D1 \/ D2 \/ D3 \/ D4 (red light): relay working indicator light, when open the shell\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D7 (red light): Mode 1 indicator\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D5 (blue light): Mode 2 indicator\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eLED D6 (green light): working status indicator, described as follows:\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(1) When off, it means that it is self-configuring or loses connection with the router;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(2) When flashing at 0.5S, it means waiting for mobile phone APP to configure WIFI account and password for ESP-01 module;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(3) When the 2S flashes slowly, it means the configuration is completed, waiting for the establishment of a TCP connection with the mobile phone;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003e(4) Steady light indicates successful establishment of TCP connection with mobile phone.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTwo reserved jumper caps: Please insert them to the bottom end (ie RX connected to RX1, TX connected to TX1) during normal use. Otherwise there may be interference).\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eC0M1: public end;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC1: Normally closed end, the relay is short-circuited with COM1 before pull-in, and hangs up after pull-in;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eN01: Normally open, the relay hangs before pull-in, and short-circuit with COM1 after pull-in.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM2: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC2: Normally closed end, the relay is short-circuited with COM2 before pull-in, and hangs up after pull-in;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNO2: Normally open, the relay hangs open before pull-in, and short-circuit with COM2 after pull-in.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM3: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC3: Normally closed end, the relay is short-circuited with COM3 before pull-in, and hang in the air after pull-in;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNO3: Normally open, the relay hangs open before pull-in, and short-circuit with COM3 after pull-in.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eCOM4: public terminal;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNC4: Normally closed end, the relay is short-circuited with COM4 before pull-in, and hangs up after pull-in\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eNO4: Normally open, the relay hangs before pull-in, and short-circuit with COM4 after pull-in.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eRelay control command (hex hex format):\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTurn on the first relay: A0 01 01 A2\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eClose the first relay: A0 01 00 A1\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eOpen the second relay: A0 02 01 A3\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eClose the second relay: A0 02 00 A2\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eOpen the third relay: A0 03 01 A4\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eClose the second relay: A0 03 00 A3\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cspan style='font-family:\"times new roman\", times, serif'\u003eTurn on the fourth relay: A0 04 01 A5\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv 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