LEDUNIA - the name of new development board and campaing on kickstarter.com.
The main component of LEDUNIA is ESP8266 WiFI chip (used on e.g. NodeMCU).

The designers used ESP8266, so they have an easier way to implement the support of that in Arduino IDE - Wiring language. The designers on campaing website write that LEDUNIA is NOT only clon of NodeMCU.

You connect LEDUNIA to laptop easily through USB A, you don't need an USB micro/usb cabel (if you have enough place around the USB connector).

The grid of pins is 2.54", so you can insert the LEDUNIA to breadboard without the problem.

You have a choice a lot of programming languages like Wiring, microPython, Java or Lua.

Except ESP8266 you find on the board also 32 MB memory, USB connector, internal antenna and u.FL connector for external antenna, 4x RGB (WS2812).

LEDUNIA doesn't contain button. No reset, no user button. LEDUNIA supports OTA programming.

That also contains USB converter by FTDI.

The dimension of PCB is 55.5 x 25 x 7.9 mm.

The price starts from 27 euro. Campaing website https://www.kickstarter.com/projects/ledunia/ledunia-the-wifi-enabled-iot-dev-board-made-in-ger

Thanks Roman Ho?ek.