You need MAX3232.
Type: Posts; User: pedja089; Keyword(s):
You need MAX3232.
For client app, you connect to your AP, like you do with laptop, mobile phone, tablet.
So you have access to internet.
Then you connect to some address, eg google.com on port 80. And then using...
It seems like that all firmware is in SPI FLASH memory, so there is no need for specific programmer. Compiler, firmware and some IoT example are available... So you can write your custom firmware......
http://esp8266.com/index.php
http://hackaday.io/project/2879/logs