Cytronix LSS05 User manual

Auto-Calibrating Line Sensor
LSS05
User’s Manual
V1.2
September 2011
Information contained in this publication regarding device applications and the like is intended through suggestion only and may
be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No
representation or warranty is given and no liability is assumed by Cytron Technologies Incorporated with respect to the accuracy
or use of such information or infringement of patents or other intellectual property rights arising from such use or otherwise. Use
of Cytron Technologies’s products as critical components in life support systems is not authorized except with express written
approval by Cytron Technologies. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.

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Product User’s Manual – LSS05
Created by Cytron Technologies Sdn. Bhd. – All Rights Reserved 2
Index
1. Introduction and Overview 3
2. Packing List 4
3. Product Specification and Limitations 5
4. Board or Product Layout 6
5. Installation (hardware) 8
6. Getting Started (from user get the item until using it) 13
7. Warranty (6 months or 1 year) 17

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Product User’s Manual – LSS05
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1. INTRODUCTION AND OVERVIEW
LSS05 (Low cost line sensor bar) consists of 5 IR transmitter and IR receiver pairs.
LSS05 is the typically used for embedded system or robots in line following task. LSS05 can
be used for either dark or bright line following. Any color with distinct brightness difference
is suitable for LSS05.
The IR transmitters on LSS05 are pulsed to allow the transmitter to off at certain idle
period of sensor. This is to minimize the current consumption of LSS05 to at least half of the
current consumption compared to a normal unregulated IR line sensor. Power polarity
protection is available on LSS05 in case the user accidently applies a reverse voltage.
LSS05 have 5 digital outputs to user indicating the existence of the line. The
threshold to the brightness of line existence will be set when the user calibrate the sensor to
the surface that it will recognize. One digital input of calibration signal is available to user for
automated calibration function by the user system. User can pull down this signal line with
microcontroller to calibrate the sensors. This signal line also can be use to enter different
mode of LSS05. Each sensor of the 5 sensors on LSS05 is independent of each other. The
refreshing rate of the sensors is more than 100Hz. Every sensor is provided with its own
LEDs as indication of line detection.
LSS05 has a manual calibration button. The calibration button is multifunctional.
User can enter different mode of functions using calibration button too as the alternative to
the calibration signal.
Note:
Red color is very bright to IR sensor, thus LSS05 has difficulties in red
–
white pair
colo
r line follow.

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Product User’s Manual – LSS05
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2. PACKING LIST
Please check the parts and components according to the packing list. If there is any part
missing, please contact us at [email protected]om.my immediately.
1. LSS05 PCB with every component soldered properly.
2. LSS05 cable connector

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Product User’s Manual – LSS05
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3. PRODUCT SPECIFICATION AND LIMITATIONS
Dimensions
Specifications
Parameter Min Typical Maximum Unit
IR Emission (peak wavelength) 940 nm
Input signal, V
IH
2 5 V
Input signal, V
IL
0 0.8 V
Output Signal 5 V
Absolute Maximum Rating
Parameter Minimum
Typical Maximum Unit
Operating voltage 5 V
Maximum Current (I/O signal pins) 20 mA
Sensing distance 1
2
4 cm

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4. BOARD OR PRODUCT LAYOUT
Top
Label Function Label Function
A Sensor indicator LEDs D PIC16F819
B
Calibration button
E
Power
and output signal connector
C Mode indicator LED F Power indicator LED
A– Sensor indicator LEDs (red) will light up showing that it detects line.
B– Calibration button is used to enter different modes. Press once to enter the calibration
mode. Press twice to set the line sensor bar into dark line following mode and press 3 times to
set the line sensor bar into bright line mode.
C– Mode indicator LED (orange) is for indication of the mode. LED will light up if LSS05
is in bright line detection mode. Otherwise, it is off.
D– PIC16F819 PIC microcontroller for data processing.
E– Power and output signal connector
F– Power indicator LED (green) showing the board is supplied with power. Maximum input
power is 5V.
F
A
B
C
D
E

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Bottom
Label Function
A Pairs of IR sensor
B
Manufacturing Test Points
C Input/output signal label
A– Pairs of IR sensor which consist IR transmitter and IR receiver.
B– It is reserved for Manufacturing Test Point. Please DO NOT short or connect wire to any
of these pins.
C –Input/output signal label showing the Power (5V, GND), output signal pins (O1-O5) and
calibration signal (Cal.).
A
B
C

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5. INSTALLATION (HARDWARE)
5.1 LSS05 to Mini Mobile Robot Controller (MC40A)
Example application of LSS05 is in MC40A. Used as line detection, LSS05 is usually
mounted at the bottom of the mobile robot.
Connect to
microcontroller

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5.1LSS05 cable connector
Figure below shown cable used to connect LSS05 to microcontroller. 2020H-08 connector is
used at the end of the cable.
Pin pitch for 2020H connector is not standard size for donut board pin pitch. To use LSS05
with donut board, simply cut the end of connector and solder another type of connector like
2510 or 3960 connector. Following figure is showing the step to connect LSS05 to others
type of connector.

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