Part 1: https://www.bunniestudios.com/blog/?p=4721
Part 2: https://www.bunniestudios.com/blog/?p=4742
Part 3: https://www.bunniestudios.com/blog/?p=4751
Part 4: https://www.bunniestudios.com/blog/?p=4761
For more info on visiting Shenzhen and exiting things to do and see there:
There are some other in depth blog posts if you Google around the Internet.
Unfortunately, as of April 2016, the Shenzhen Hacker Camps are no longer happening, but they where a LOT of good Geek fun. Shenzhen also hosts an official three day long Makers Faire once a year, do a Google search for that one.
See Stephen or Paul from the SW Makers if you want to know more about visiting Shenzhen.