Step 2: Make USB connections
The Wireless ARMmite can be connected to SparkFun's USB breakout board. The minimal connection uses a 4 pin 0.1" header. This connection gives a hardwired serial connection for configuration and debugging, which can be useful during the initial setup of the tools and software, or for monitoring serial traffic during program debugging.
Minimal USB connections. The pin diagram is shown below-
Additional pins may be wired up to the USB breakout board, so that it will work identically with the original ARMmite. In this case 5V from the USB will power the board. But when that connection is made a power supply should NOT be connected.
Shown below is the orientation with the USB breakout board mounted on the ARMmite, using a 4 pin receptacle soldered into the breakout board-
