SI1140DK Silicon Laboratories Inc, SI1140DK Datasheet

BOARD EVAL SI1143-A10-GM

SI1140DK

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

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
S i 11 4 0 D
1. Kit Contents
The Si1140 Development Kit contains the following items:
2. Introduction
The Si1140DK is intended as an evaluation and development platform for the Si1143 infrared proximity and
ambient light sensor. As shown in Figure 1, the main components of the Si1143 Evaluation Board (Si1143_EB) are
the Si1143 sensor (U2), the C8051F800 microcontroller (U1), and the infrared emitters (DS1 through DS9). On this
PCB, the infrared emitters used are OSRAM part number SFH 4056. These emitters have a power rating of 40 mW
and a half-angle of 22 degrees. Other emitters with different characteristics may also be used, depending on the
specific application requirements.
The example firmware for the kit measures the infrared light energy detected by the Si1143 while each of three
infrared emitters are independently activated. The infrared light from these emitters will be reflected back to the
Si1143 by any object that is placed in proximity to the sensor. X, Y, and Z positions can be calculated from these
measurements. If no object is close enough to the board, the measured signal levels will fall below predetermined
thresholds, and the position calculations will not update. The Si1143’s ambient light sensor (ALS) is also monitored
by the firmware. The example firmware is intended to be used in conjunction with the QuickSense
Analysis Tool to provide user feedback. In addition to calculating the current position, the firmware is able to detect
different gestures from the infrared sensor, as described in Table 2 on page 8.
Rev. 0.2 1/11
Si1143 Evaluation Board
Si1140DK Quick Start Guide
1 USB Cable
P1
+5V_IN
E V E L O P M E N T
DS10
F326
U3
DS11
DS12
DS13
F800
U1
Figure 1. Si1143 Evaluation Board
Copyright © 2011 by Silicon Laboratories
DS7
DS6
DS8
DS1
DS9
K
I T
U
SER
U2
DS4
S
G
UIDE
DS2
S i 11 4 0 - D K
SILICON LABS
Si1143-EB
www.silabs.com
DS5
DS3
TM
Performance
Si1140-DK

Related parts for SI1140DK

SI1140DK Summary of contents

Page 1

... USB Cable 2. Introduction The Si1140DK is intended as an evaluation and development platform for the Si1143 infrared proximity and ambient light sensor. As shown in Figure 1, the main components of the Si1143 Evaluation Board (Si1143_EB) are the Si1143 sensor (U2), the C8051F800 microcontroller (U1), and the infrared emitters (DS1 through DS9). On this PCB, the infrared emitters used are OSRAM part number SFH 4056 ...

Page 2

Si1140-DK 3. Software Overview There are several optional software packages available to support the Si1140 Development Kit. QuickSense Studio contains the Performance Analysis Tool, which can be used to collect data from the board over the USB interface and display ...

Page 3

... The Si1143 Evaluation 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 is located in the default path C:\SiLabs\MCU\QuickSense_Studio\Kits\Si1140DK\Firmware\. The pre-built .HEX image is located in the default path C:\SiLabs\MCU\QuickSense_Studio\Kits\Si1140DK\Firmware\Release\. Follow the instructions below to update or refresh the ...

Page 4

Si1140-DK 4. Using the Si1143 Evaluation Board with the Performance Analysis Tool The Si1143 Evaluation 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 from ...

Page 5

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 two different groups of measurements ...

Page 6

Si1140-DK 4.1.2. 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 ...

Page 7

Name Label Type G0 Rad1 G1 Rad2 Linearized Distance Measurements G2 Rad3 G3 X(mm) G4 Y(mm) Estimated Location Coordinates G5 Z(mm) G6 iLED1 G7 iLED2 LED Drive Current Levels G8 iLED3 G9 VIS AutoRanging Ambient Outputs G10 IR G11 PS1 ...

Page 8

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 ...

Page 9

Schematic Rev. 0.2 Si1140-DK 9 ...

Page 10

... 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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