When we first heard about it a few weeks ago, we knew the ESP8266 UART to WiFi module was a special beast. It was cheap, gave every microcontroller the ability to connect to a WiFi network, and could ...
When the ESP8266 was released, it was sold as a simple device that would connect to a WiFi network over a UART. It was effectively a WiFi modem for any microcontroller, available for just a few bucks.
With the Nano Socket family, only a few hours are required to add full-featured Internet access functionality over LAN or WiFi to an embedded device, including TCP sockets, SSL encryption, routing, ...