SI1140DK Silicon Laboratories Inc, SI1140DK Datasheet - Page 8

• Manufacturer Part Number: SI1140DK
• Description: BOARD EVAL SI1143-A10-GM
• Manufacturer: Silicon Laboratories Inc
• Series: QuickSense™r

Specifications of SI1140DK

• Sensor Type: Proximity, Infrared and Ambient Light
• Interface: USB
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: C8051F800, Si1143
• Data Bus Width: 8 bit
• Interface Type: USB
• Operating Voltage: 5 V
• For Use With/related Products: Si1140
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 336-1971

Si1140-DK
4.2. Gesture Sensing
In addition to infrared and ambient light measurements and distance calculations, the example firmware contains
algorithms for gesture recognition. When connected to the board with the Performance Analysis Tool, a group
window will appear, as shown in Figure 6. When a gesture is recognized by firmware, the gesture name and
parameter information will be added to the top of the 3D Gesture group. Four gestures are supported by the
example code. The parameters for each gesture are listed in Table 2.
8
Gesture Name
Swipe Down
Swipe Right
Swipe Left
Swipe Up
Parameter
Speed
Speed
Speed
Speed
Figure 6. Performance Analysis Tool Group Window
1 18 (Slow to Fast)
1 18 (Slow to Fast)
1 18 (Slow to Fast)
1 18 (Slow to Fast)
Parameter Range
Table 2. Recognized Gestures
Rev. 0.2
Move hand rapidly from the right side to the left side
of the board.
Move hand rapidly from the left side to the right side
of the board.
Move hand rapidly from the bottom to the top of the
board.
Move hand rapidly from the top to the bottom of the
board.
Description of Action