Grow GM72 User manual

GM72 Bar Code Reader Module
User Manual
Hangzhou Grow Technology Co., Ltd.
V1.1 March.2018

I
Catalog
1 Introduction of Module............................................................................................................................................1
1.1 Introduction................................................................................................................................................... 1
1.2 Technical Specification............................................................................................................................... 1
1.3 Dimension (mm)...........................................................................................................................................2
1.4 Circuit Board Diagram.................................................................................................................................3
2 Factory Mode Information......................................................................................................................................4
2.1 Factory Default Configuration....................................................................................................................4
2.2 Setup Code...................................................................................................................................................4
3 Communication Interface.......................................................................................................................................5
3.1 Serial Port..................................................................................................................................................... 5
3.1.1 Baud rate........................................................................................................................................... 5
3.1.2 Parity Bit.............................................................................................................................................6
3.1.3 Stop Bit...............................................................................................................................................6
3.2 USB KBW......................................................................................................................................................6
3.3 USB COM Keyboard...................................................................................................................................6
4 Read Mode...............................................................................................................................................................7
4.1 Manual Mode................................................................................................................................................7
4.1.1 Button Holding Mode....................................................................................................................... 7
4.1.2 Button Trigger Mode........................................................................................................................ 7
4.2 Continuous Mode.........................................................................................................................................7
4.2.1 Break Time Settlement....................................................................................................................8
4.3 Induction Mode.............................................................................................................................................8
4.3.1 Stable Induction Time......................................................................................................................8
4.3.2 Sensitivity Rating Setting................................................................................................................ 9
4.4 Host Mode.....................................................................................................................................................9
4.5 Single scan time...........................................................................................................................................9
4.6 Time Interval For The Same Code Read.............................................................................................. 10
5 Lighting and Collimate......................................................................................................................................... 10
5.1 Lighting........................................................................................................................................................10
5.2 Collimation.................................................................................................................................................. 10

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6 Prompts...................................................................................................................................................................11
6.1 Keyboard Settlement.................................................................................................................................11
6.2 Prompts Tone............................................................................................................................................. 12
6.2.1 Silent Mode..................................................................................................................................... 12
6.2.2 Volume Level.................................................................................................................................. 12
6.2.3 Decoding Successful Prompt Tone.............................................................................................12
6.2.4 Starting Up Prompt........................................................................................................................ 12
6.2.5 Setup Code Prompt....................................................................................................................... 13
6.3 Decoding Prompt.......................................................................................................................................13
6.4 Keyboard Output Force Letter Case Conversion................................................................................ 13
6.5 Data code format....................................................................................................................................... 14
7 Data Edition........................................................................................................................................................... 15
7.1 CODE ID..................................................................................................................................................... 15
7.2 Terminator Character................................................................................................................................ 15
7.3 Add Prefix and Suffix.................................................................................................................................15
7.3.1 Define Prefix and Suffix Content................................................................................................. 15
7.3.2 Define the Data Output Mode...................................................................................................... 16
8 All Types of Bar Code Can be Decoded........................................................................................................... 17
8.1 UPC-A......................................................................................................................................................... 17
8.2 UPC-E......................................................................................................................................................... 17
8.3 EAN-8.......................................................................................................................................................... 17
8.4 EAN-13........................................................................................................................................................17
8.5 Bookland EAN............................................................................................................................................18
8.6 UPC/EAN Extracode.................................................................................................................................18
8.7 CODE 128.................................................................................................................................................. 18
8.8 GS1-128......................................................................................................................................................18
8.9 ISBT-128..................................................................................................................................................... 19
8.10 Interleaved 2 of 5.....................................................................................................................................19
8.10.1 I 2 of 5............................................................................................................................................19
8.10.2 Interleaved 2 of 5 Identify Length............................................................................................. 19
8.10.3 Interleaved 2 of 5 Check Bit Transmission..............................................................................19
8.11 Matrix 2 of 5..............................................................................................................................................20
8.11.1 Matrix 2 of 5.................................................................................................................................. 20

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III
8.11.2 Matrix 2 of 5 Identify Length.......................................................................................................20
8.11.3 Matrix 2 of 5 Check Bit Transmission....................................................................................... 20
8.12 Industrial 2 of 5........................................................................................................................................ 21
8.12.1 Industrial 2 of 5.............................................................................................................................21
8.12.2 Industrial 2 of 5 Identify Length................................................................................................. 21
8.13 Standard 2 of 5........................................................................................................................................ 21
8.13.1 Standard 2 of 5.............................................................................................................................21
8.13.2 Standard 2 of 5 Identify Length................................................................................................. 22
8.13.3 Standard 2 of 5 Check Bit Transmission................................................................................. 22
8.14 Code 39.................................................................................................................................................... 22
8.14.1 Code 39......................................................................................................................................... 22
8.14.2 Code 39 Length............................................................................................................................22
8.14.3 Code 39 Check Bit.......................................................................................................................23
8.14.4 Code39 Transmit Start Character and Stop Character.........................................................23
8.15 Code 39 Full ASCII................................................................................................................................. 23
8.16 Code 93.................................................................................................................................................... 23
8.17 Code 11.....................................................................................................................................................23
8.17.1 Code 11......................................................................................................................................... 23
8.17.2 Check Bit Transmission.............................................................................................................. 24
8.18 Codabar.................................................................................................................................................... 24
8.19 PLESSEY................................................................................................................................................. 24
8.20 MSI.............................................................................................................................................................24
8.21 GS1-Databar............................................................................................................................................25
8.22 QR Code...................................................................................................................................................25
8.22.1 QR Code....................................................................................................................................... 25
8.22.2 Read More Yards......................................................................................................................... 25
8.23 Data Matrix............................................................................................................................................... 25
8.23.1 Data Matrix....................................................................................................................................25
8.23.2 Data Matrix Read More Yards................................................................................................... 26
8.24 PDF 417....................................................................................................................................................26
8.25 Aztec Code............................................................................................................................................... 26
8.26 Maxi Code................................................................................................................................................ 26
9 Serial Port Instruction...........................................................................................................................................27

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IV
10 Appendix 1：Digital Setting Code................................................................................................................... 30
11 Appendix 2：Cancel Barcode...........................................................................................................................31
12 Appendix 3: Code ID.......................................................................................................................................... 32
13 Appendix 4: Character Comparison Table......................................................................................................33

1
1 Introduction of Module
1.1 Introduction
GM72 Bar code reader module is a high performance scanner, can read 1D
bar code easily and read 2D bar code with high speed. It also wins high scan
speed for linear code, even for bar code on paper or screen.
GM72 bar code reader module is an advanced bar code decoding
algorithm which developed on image recognition algorithm, can easily and
accurately read bar code, simplify secondary development.
1.2 Technical Specification
Scanning
Performance
Scan Mode
640*480 CMOS
Read Code
Type
2D
QR Code, Data Matrix, PDF417,maxicode,Aztec,hanxin
1D
EAN,UPC,Code 39,Code 93,Code 128,UCC/EAN 128,
Code 11,
Codabar, Interleaved 2 of 5, Standard 25，MSI-Plessey
GS1 Databar, Industrial 25, Matrix 2 of 5
Accuracy of reading
One Dimensional Code:6mil
Working Mode
Continuous Mode, Induction Mode, Manual Mode
Depth of
Field
Alipay
30-150mm
Bus
50-120mm
Contrast
≥25%
Scanning angle
Intersection angle 360°, Elevation ± 55°,
Deflection angle ± 55°
Viewing Angle
Inclination 60°, Elevation 46°
Mechanical/
Electrical
Parameters
Interface
TTL-232、USB
Dimension
65(W)×61(D)×28(H)mm
Operating Current
DC5V≤100mA
Environmental
Parameters
Operating
Temperature
-20℃~+50℃
Storage Temperature
-40℃~+70℃
Operating Humidity
5%~95% (Non-Condensing)
Environmental Light
0~100000LUX

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1.3 Dimension (mm)

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1.4 Circuit Board Diagram

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2 Factory Mode Information
2.1 Factory Default Configuration
Communication mode: USB KBW Trigger mode: Keep press the button Close: Enter(\r)
Factory default setting
2.2 Setup Code
*Setup code on Off

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5
3 Communication Interface
3.1 Serial Port
It’s default and common to connect module and mainframe(such as PC, POS) by series
communication interface. Make sure communication parameter for module and mainframe are same,
then it will communicate smooth and correctly. Serial port related configuration: Baud rate:9600, Data
bit:8, Verification: No, Stop bit:1
TTL 232 Interface
3.1.1 Baud rate
1200bps 2400bps
4800bps *9600bps(Default)
19200bps 38400bps
57600bps 115200bps