It was confusion at the bengining that only a picutre of one module of the development kit was displayed on the website of the products, while the datasheet indicate three modules of the developmente kit plus power supply, USB memory stick with software tools. I have made a call to the customer service to check whether all three moduels and accesarries are included and I was told they would all be included. To make sure it was correct, I sent email and was replied with the same answer. However I have only received one module. I tried to contact the constomer serviced a few times in last two months, but they just complaining the manufacture as if it is no thing to do with them.