There is lots of info on the web about this module.
PENTAX K3, K-3 Premium Silver Edition and K-3 prestige Edition To check the version number, press the menu button and select [Firmware Info/Options] in the [Set-up 4] menu then press the four-way controller right.
The modules currently supported by the Firmware Updater are: You can download the latest version of the Firmware Updater for your OS by clicking one of the buttons below: Download for OSXDownload for Windows The Firmware Updater software requires the Intellijel USB ISP. The firmware updater includes a copy of avrdude (GPLv2), libusb and libftdi (LGPL). The Windows version of the Firmware Updater requires drivers to be installed.
https://github.com/espressif/ESP8266_AT https://drive.google.com/file/d/0B3d UKfqz Znlwd UJUc2hk ZDUy Vj A/view https://drive.google.com/folderview?
id=0B_ct Py0p Ju W6d1Fq M1lv Sk Jm NU0&usp=drive_web&tid=0B3d UKfqz Znlw Rj Fa NTUz ZFptbzg Watch this video of Kevin Darrah on how to get start with esp8266. v=q U76y WHe Quw "The ESP8266 module is a cheap Wireless module.
It has SOC(system on chip) that can handle TCP protocols.
By default, these modules come with an AT command processor and can act as a serial to Wi Fi bridge.