WT8266-S2 WiFi module is an embedded wireless network control module with low power consumption and high cost performance developed by Qiming Cloud Technology. It can meet the needs of IoT applications such as smart grid, building automation, security, smart home, and telemedicine.

WT8266-S2 Manual V2.5.pdf 2018-09-10


The WT8266-S2 WiFi module core processor ESP8266 integrates the industry-leading Tensilica L106 ultra-low power 32-bit microcomputer in a small package.
MCU with 16-bit compact mode, main frequency support 80 MHz and 160 MHz, RTOS support, integrated Wi-Fi MAC/BB/RF/PA/LNA, with IPEX connector.

WT8266-S2 WiFi module supports standard IEEE802.11 b/g/n protocol, complete TCP/IP protocol stack. Users can use this module for existing equipment
Add networking function, you can also build an independent network controller.


> Ultra-low energy consumption, suitable for battery-powered applications

> Ultra-small size module 18.6mm*15.0mm

> Excellent RF performance (strong anti-interference)

> IPEX antenna interface

> Industrial Grade Module

> Built-in CTP/IP protocol cable, supports multiple TCP Client connections

> Built-in 32-bit MCU, which can double as an application processor

> Support AT remote upgrade and cloud OTA upgrade

> Support STA/AP/STA+AP working mode

> Support UART/GPIO data communication interface

> Support Smart Link intelligent networking function

> Support wireless 802.11 b/g/n standard

> The default AT command set is convenient for rapid product development


Smart grid

Building automation


Smart home