Please please please clean up te instructions for using your kits for arduino or mblock.
I could not establish a USB connection between the Orion board (I have the Robot Starter kit and inventor Electronic Kit) and my Mac and none of the drivers referenced on the Makeblock site would work.
I finally found this web site with a good driver and good instructions that allowed the Arduino editor to communicate to the Orion board.
http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html
Makeblock- you have a good product that is of good quality but your instructions for getting started are really lacking.
Please do your company a favor and put together a good install program and instructions for people that are new to the Arduino platform. You will have a winner if you do that.
Thanks