This new board is just a simple ESP8266 Board with USB + Extension Bus (nEXT) and is the result of looking for a smaller and somehow a more flexibile hardware configuration than the CBDB Evolution DevBoard.
This is how is looking the PCB of it:
![Image](http://3.bp.blogspot.com/-XiaUtewN_bM/VksBccy_odI/AAAAAAAABAU/iPNqsC1nXQ4/s400/v3.4d_top_1.jpg)
and the finished Board:
![Image](http://2.bp.blogspot.com/-INavk9UkWVw/VksCAUvzXnI/AAAAAAAABAc/Nivc7L3betI/s1600/v3.4d_top_full_3_1.jpg)
This is the board that was also used for the long run battery tests posted here:
Ultra low power application schematic: RFC
In this case on top of it was added the RTC/Li-Ion battery charger nEXT module.
For more details about, please see related articles:
- CBDB nEXT Evo Board - General presentation and schematics
Available on Tindie: https://www.tindie.com/products/nEXT_EVO1/universal-ac-mains-dimmer-mpdmv41/