While using the touch sensors, if the bottom side is touched, the touch events are wrong.
Workaround: when demonstrating the touch feature on the kit, the bottom side of the PCB must not be in contact with fingers or any external object.
The pin-through holes near the touch sensors may cause spurious touch events.
On some AT32UC3L-EK kits, the pin-through holes are not protected, causing spurious touch events when the fingers are not exactly on the touch sensors.
Workaround: when demonstrating the touch feature on this kit, the user must make sure to touch the sensor-delimited PCB areas only and nowhere else on the PCB.
The kit will not operate if power-hungry add-ons are connected to the expansion headers.
Workaround: the kit must not be used with external add-ons consuming more than 100mA. Note that the RZ600 radio board provided with this kit has very low power consumption and can be used with this kit safely.