ESP8266 is a WIFI Transceiver Module with ultra-low power consumption,User's physical device can be connectedto the wi-fi wireless network for Internet or LAN communication and networking functions. It can be widely used in smart power grid, intelligent transportation, intelligent furniture, handheld equipment, industrial control and other fields.Features:Semi-hole chip technology, all the IO leads, with metal shielding shellIPX external antenna, can also be built-in ceramic antenna.Support wireless 802.11b /g/n standardSupports three working modes: STA/AP/STA+AP The built-in TCP/IP protocol stack supports multiple TCP Client connectionsSupports rich Socket AT instructionsSupports UART/GPIO data communication interfaceSupports Smart Link Smart networkingSupports remote firmware upgrade (OTA)The built-in 32-bit MCU can double as application processorLow energy consumption, suitable for battery power supply applicationsSpecification:ModuleModelESP8266-07Main chipESP8266Wireless parametersWireless standardsIEEE 802.11b/g/nFrequency range2.412GHz-2.484GHzTransmission power802.11b: +16 +/-2dBm (@11Mbps)802.11g:+14 +/-2dBm (@54Mbps)802.11n: +13 +/-2dBm (@HT20, MCS7)Receiving sensitivity802.11b: -93 dBm (@11Mbps ,CCK)802.11g: -85dBm (@54Mbps,OFDM)802.11n: -82dBm (@HT20, MCS7)Antenna formExternal: stamp portExternal: I-PEX connector, SMA connectorBuilt-in: onboard PCB antennaHardware parametersHardware interfaceUART,IIC,PWM,GPIO,ADCWorking voltage3.3VGPIO drive abilityMax:15maWorking currentKeep sending=>average:~70mA,peak value: 200mANormal mode=>Average: ~12mA,peak value: 200mAStandby:<200uA, Working temperature-40~125Storage environmenttemperature:<40,Relative humidity:<90%R.H.Size4.3*2.5cm/1.7*1inSerialApp Transmission rate110-921600bpsTCP Client5pcssoftware parametersWireless network typeSTA/AP/STA+APSecurity mechanismWEP/WPA-PSK/WPA2-PSKEncryption typeWEP64/WEP128/TKIP/AES firmware updateLocal serial port, OTA remote upgradeNetwork protocolIPv4, TCP/UDP/FTP/HTTPUser configurationAT+Instruction set, Web page Android/iOS terminal, Smart Link smart configuration APPPackage list:1 x WIFI Transceiver Module