We seem to get this question a lot so we will keep this up so every one can read it.
Do I need the development system or I can save some money and just use the module?
The development system gets you started very quickly and making your own board would take a lot of resources and will probably cost more than our development system. The schematics for the development system is on the website if you want to make your own.
If you choose to go with the module alone, you
must have a full understanding of electronics and good background or creating circuit boards. We do
not provide support if you mount the module on your own board and it is completely dead. On the other hand, we will be more than happy to provide you will all necessary support if the system boots up.
On side note, the module can be hand soldered on a simple 1 or 2 layer board. Obviously need some experience in soldering.