IRSLIDER2EK Silicon Laboratories Inc, IRSLIDER2EK Datasheet

BOARD EVAL IR SLIDER SI1142

IRSLIDER2EK

Manufacturer Part Number
IRSLIDER2EK
Description
BOARD EVAL IR SLIDER SI1142
Manufacturer
Silicon Laboratories Inc
Series
QuickSense™r
Datasheets
1.IRSLIDER2EK.pdf (12 pages)
2.IRSLIDER2EK.pdf (1 pages)

Specifications of IRSLIDER2EK

Sensor Type
Proximity, Infrared
Sensing Range
1 Slider
Interface
USB
Voltage - Supply
5V, USB
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
C8051F800, Si1142
Data Bus Width
8 bit
Interface Type
USB
Operating Voltage
5 V
For Use With/related Products
Si1142
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Sensitivity
-
Lead Free Status / Rohs Status
No
Other names
336-1972
S i 11 4 2 I R S
1. Kit Contents
The Si1142 Slider Demo Kit contains the following items:
2. Introduction
The Si1142 Slider Demo Board implements an infrared touchless slider function based around the Si1142 infrared
proximity and ambient light sensor. As shown in Figure 1, the main components of the board are the Si1142 sensor
(U2), the C8051F800 microcontroller (U1), and two infrared emitters (DS1 and DS2). Hardware is also provided
on-board to facilitate code development for the C8051F800 and communications with software support packages
over a USB interface.
The firmware running on the C8051F800 measures the infrared light energy detected by the Si1142, while each of
the two infrared emitters are independently activated. The infrared light from these emitters will be reflected back to
the Si1142 by any object that is placed in proximity to the board. The left-right position is then calculated from these
two measurements and used to illuminate the appropriate signal LED. If no object is close enough to the board, the
measured signal levels will fall below pre-determined thresholds, and no signal LEDs will be illuminated. In addition
to indicating the current position, the firmware is also able to detect different gestures from the infrared sensor, as
described in Table 2 on page 9. The Si1142’s ambient light sensor (ALS) is also monitored by the firmware, which
can determine the amount of ambient light present.
Note: The touchless infrared position and gesture detection implemented in the example is patent pending.
Rev. 0.2 1/11
Si1142 Slider Demo Board
Si1142 Slider Demo Board Quick Start Guide
USB Cable
Si1142-EB
DS1
LIDER
S i 114 2 I n f r a r e d S l i d e r D e m o K i t
2 E K D
Figure 1. Si1142 Slider Demo Board
Copyright © 2011 by Silicon Laboratories
U2
EMO
DS2
SILICON LABS
www.silabs.com
K
IT
U
SER
’
S
F800
U1
Si1142 Infrared Slider Demo Kit
G
UIDE
F326
U3
DS10
+5V_IN
P1

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IRSLIDER2EK Summary of contents

Page 1

S i 114 LIDER 1. Kit Contents The Si1142 Slider ...

Page 2

Si1142 Infrared Slider Demo Kit 3. Running the Pre-Loaded Slider Demo 1. The board receives its power over the USB interface. Connect one end of a USB cable to the USB connector (P1) on the Si1142 Slider Demo Board and ...

Page 3

Software Overview There are several optional software packages available to support the Si1142 Slider Demo Board. QuickSense Studio contains the Performance Analysis Tool, which can be used to collect data from the board over the USB interface and display ...

Page 4

... The Si1142 Slider Demo Board installer package includes the firmware source code as well as a pre-built .HEX image that can be downloaded directly into the board. The firmware source code and an example IDE project are located in the default path C:\SiLabs\MCU\QuickSense_Studio\Kits\IRSlider2EK\Firmware\. The pre-built .HEX image is located in the default path C:\SiLabs\MCU\QuickSense_Studio\Kits\IRSlider2EK\Firmware\Release\. ...

Page 5

Using the Si1142 Slider Demo Board with the Performance Analysis Tool The Si1142 Slider Demo Board is supported by the QuickSense Performance Analysis Tool. The Performance Analysis Tool allows users to see real-time infrared proximity and ambient light measurements ...

Page 6

Si1142 Infrared Slider Demo Kit 5.1. Channel Selection Selecting which channels to display is done by checking the appropriate boxes on the Board Representation window, shown in Figure 4, and the Generic Data window, shown in Figure 5. There are ...

Page 7

Generic Data Channels The generic data channels contain any data generated by the host MCU. These 16-bit channels can be anything from simple debug channels to calculated position values. See Table 1 for an explanation of all the channels ...

Page 8

Si1142 Infrared Slider Demo Kit Name Label G0 Rad1 Linearized Distance Measurements G1 Rad2 G2 X(mm) Estimated Location Coordinates G3 Y(mm) G4 iLED1 LED Drive Current Levels G5 iLED2 G6 VIS AutoRanging Ambient Outputs PS1 AutoRanging PS ...

Page 9

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 ...

Page 10

Si1142 Infrared Slider Demo Kit 6. Schematic 10 Rev. 0.2 ...

Page 11

N : OTES Si1142 Infrared Slider Demo Kit Rev. 0.2 11 ...

Page 12

... Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap- plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. Silicon Laboratories, Silicon Labs, and QuickSense are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. ...

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