November 2, 2014
ESP8266 is a great new WiFi to RS-232 module. The great thing about it is that it cost only 5$, and it provides the abillity to connect your MCU to a network using only RS-232 port. Also, it has built-in TCP/IP stack so it should be simple enough to setup your MCU to talk to other devices in network or servers on the Internet. Processor on this module is Tensilica Xtensa LX3 32bit, clocked at 80 MHz. This is my first try of using this module.