Silicon Laboratories Sensor-EXP-EVB User Manual page 6

Sensor EXP EVB UG
2.2. Using the Demo
After download, the USB cable can be disconnected and the demo will run from battery power by switching the
Bat/Dbg switch to battery.
The demonstration will first show a start screen with some basic instructions. In order to conserve power the
demonstration code wakes up every few seconds and looks for a proximity event before looking for gestures. To
initiate a proximity event, hold your hand (with fingers closed) over the Sensor-EXP-EVB. Once the proximity event
has been detected, gesture detection is enabled. The gesture control state is fairly high-power compared to the idle
state, so the code will automatically terminate gesture detection after one minute of inactivity. Swiping your hand
across the Sensor-EXP-EVB in left and right motions will change the display as shown in Figure 5.
Temperature Humidity UV Index
(Si7013) (Si7013) (Si1147)
Figure 5. Displays
While on the temperature display, an up or down swipe motion will change the units to °C or °F.
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