Purchased one of these boards via eBay and have been very pleased with if from a hardware perspective. From a sketch or functionality view however the information available is 'sketchy' at best. Finally decided to write my own examples using what could be gleaned from the internet (mostly in Chinese - thankful for Google Translate 
).
Was able to write a number of examples and start a user document which I have included with the zip file attachment.
Only things I could not figure out were the BlueTooth, LM35 headers (need more hardware) and what the jumpers do.
If there is enough interest I may look at writing a Funduino Library.
Thanks,
Bill Brouwer
FunduinoShield.zip (692 KB)