Dual microcontroller units.
ESP8266 being a Wi-Fi module with a system-on-chip, ATmega128 and ESP8266 ESP12E combination on Winkel Board provides dual microcontrollers. The two universal asynchronous receivers/transmitters of ATmega128 are connected to ESP8266, thereby helping these communicate with each other at the same time these run their own code.
Ease of programming.
Winkel Board can be programmed with Arduino IDE via a micro-USB cable, but you could also program ATmega128 over Bluetooth and ESP12 module over Wi-Fi wirelessly. This makes it easy to update the firmware while the board is inside a case or is hard to access. Winkel Board also supports conventional wired serial programming.
Open source hardware platform
The best part of Winkel Board is that it is completely open source. The source code and the pin diagram are available at Github, Instructables, crowdsupply.com and other forums. This is a huge contribution to the open source hardware community, which facilitates makers like you to make your own Winkel Board.
Winkel Board is truly a boon for makers who work on electronic projects that involve a lot of I/O operations, and involve using different communication protocols to fulfil different tasks. It gives you more time to focus on actual building and completing the important parts of your project rather than wasting it on routine, common-place, low-level tasks.
Ankita K.S. is audience development editor at EFY, and secretary of IEEE-YP. She is an engineering graduate, and writes articles on technology for electronicsforu.com