The Atmel XMEGA-A1 Xplained kit, revision 7, is the first released revision of the XMEGA-A1 Xplained kit.
This kit replaces the Atmel Xplain evaluation kit. Information about the original Xplain evaluation kit can be found in application note AVR1907.
Light sensors
The output range on the light sensor is 0V - 3.3V. The ADC reference must therefore be high enough to match the output range of the light sensor when doing measurements.
USB test points
Touching the test points for the USB data lines on the back side of the board while there is ongoing communication might interrupt the device and cause the device to stop responding. The kit must be reconnected to start working properly again.