Welcome to our shop! The ESP8266 WIFI Transceiver Module is the perfect solution for connecting your physical devices to a wireless network. It supports wireless 802.11b/g/n standard and has three working modes: STA (station), AP (access point), and STA+AP. The module is built with a semi-hole chip technology and comes with a metal shielding shell for better performance. It also features an IPX external antenna, which can be replaced with a built-in ceramic antenna if needed. The ESP8266 module has a built-in TCP/IP protocol stack that supports multiple TCP client connections. It also supports rich Socket AT instructions and UART/GPIO data communication interface. The module is energy-efficient and suitable for battery power supply applications. It can be used in various fields such as smart power grid, intelligent transportation, intelligent furniture, handheld equipment, and industrial control. Here are some key features and specifications of the ESP8266 WIFI Transceiver Module: - Semi-hole chip technology, all the IO leads, with metal shielding shell - IPX external antenna, can also be built-in ceramic antenna - Support wireless 802.11b/g/n standard - Supports three working modes: STA/AP/STA+AP - The built-in TCP/IP protocol stack supports multiple TCP client connections - Supports rich Socket AT instructions - Supports UART/GPIO data communication interface - Supports Smart Link Smart networking - Supports remote firmware upgrade (OTA) - The built-in 32-bit MCU can double as an application processor - Low energy consumption, suitable for battery power supply applications Specifications: - Main chip: ESP8266 - Wireless standards: IEEE 802.11b/g/n - Frequency range: 2.412GHz-2.484GHz - Transmission power: 802.11b: +16 +/-2dBm (@11Mbps), 802.11g: +14 +/-2dBm (@54Mbps), 802.11n: +13 +/-2dBm (@HT20, MCS7) - Receiving sensitivity: 802.11b: -93 dBm (@11Mbps, CCK), 802.11g: -85dBm (@54Mbps, OFDM), 802.11n: -82dBm (@HT20, MCS7) - Antenna form: External: stamp port, External: I-PEX connector, SMA connector, Built-in: onboard PCB antenna - Hardware interface: UART, IIC, PWM, GPIO, ADC - Working voltage: 3.3V - GPIO drive ability: Max: 15mA - Working current: Keep sending => average: ~70mA, peak value: 200mA, Normal mode => average: ~12mA, peak value: 200mA, Standby: <200uA - Working temperature: -40℃~125℃ - Storage environment: temperature: <40℃, Relative humidity: <90%R.H. - Size: 4.3*2.5cm/1.7*1in - SerialApp Transmission rate: 110-921600bps - TCP Client: 5pcs - Wireless network type: STA/AP/STA+AP - Security mechanism: WEP/WPA-PSK/WPA2-PSK - Encryption type: WEP64/WEP128/TKIP/AES - Firmware update: Local serial port, OTA remote upgrade - Network protocol: IPv4, TCP/UDP/FTP/HTTP - User configuration: AT+Instruction set, Web page Android/iOS terminal, Smart Link smart configuration APP Package list: - 1 x WIFI Transceiver Module 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.