We have received requests for an easy way to talk UART to bluz DK as many options involved using breadboards. So, we took a very popular part from the SparkFun lineup and added a converter board, and we now have available the bluz UART shield!
This uses the SparkFun FTDI Basic Breakout, which is included, to power bluz and also provide a quick and easy way to hook up UART. This makes serial debugging and uploading firmware through the bootloader much simpler. Plus, the SparkFun board can easily be used on many other 3.3V microcontroller platforms, such as the Arduino Pro series.