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GM68 Bar Code Reader Module
User Manual
Hangzhou Grow Technology Co., Ltd.
V1.1
March.2018

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Summary of Contents for Grow GM68

  • Page 1 GM68 Bar Code Reader Module User Manual Hangzhou Grow Technology Co., Ltd. V1.1 March.2018...
  • Page 2: Table Of Contents

    Catalog 1 Introduction of Module............................1 1.1 Introduction..............................1 1.2 Technical Specification..........................1 1.3 Dimension (mm)............................2 1.4 Definition............................... 3 1.5 Reference Circuit............................3 2 Factory Mode Information............................5 2.1 Factory Default Configuration........................5 2.2 Setup Code..............................5 3 Communication Interface............................6 3.1 Serial Port..............................6 3.1.1 Baud rate............................
  • Page 3 5.2 Collimation..............................11 6 Prompts.................................. 12 6.1 Keyboard Settlement..........................12 6.2 Prompts Tone............................. 13 6.2.1 Silent Mode............................. 13 6.2.2 Volume Level..........................13 6.2.3 Decoding Successful Prompt Tone.....................13 6.2.4 Starting Up Prompt........................13 6.2.5 Setup Code Prompt........................14 6.3 Decoding Prompt............................14 6.4 Keyboard Output Force Letter Case Conversion................
  • Page 4 8.11.1 Matrix 2 of 5..........................21 8.11.2 Matrix 2 of 5 Identify Length.......................21 8.11.3 Matrix 2 of 5 Check Bit Transmission..................21 8.12 Industrial 2 of 5............................22 8.12.1 Industrial 2 of 5..........................22 8.12.2 Industrial 2 of 5 Identify Length....................22 8.13 Standard 2 of 5............................
  • Page 5 9 Serial Port Instruction............................28 10 Appendix 1:Digital Setting Code........................31 11 Appendix 2:Cancel Barcode...........................32 12 Appendix 3: Code ID............................33 13 Appendix 4: Character Comparison Table......................34 www.hzgrow.com...
  • Page 6: Introduction Of Module

    1 Introduction of Module 1.1 Introduction GM68 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.
  • Page 7: Dimension (Mm)

    1.3 Dimension (mm) Front Back www.hzgrow.com...
  • Page 8: Definition

    1.4 Definition Input/Output Definition Introductions PIN 1 Output Beep sfn output, low level when free PIN 2 Output rLEDctrl Positioning lamp control pin Decoding success light, PIN 3 Output Dled low level when free PIN 4 Output wLEDctrl Floodlight control pin Weak Pull-up, PIN 5 Output...
  • Page 9 sfn pin drive circuit: DLED pin drive circuit After the success of the decoding, the BEEPER and DLED pin will provide a high level pulse, the duration of high level pulse can be configured by scanning code by the user. The default is 60ms. www.hzgrow.com...
  • Page 10: Factory Mode Information

    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 www.hzgrow.com...
  • Page 11: Communication Interface

    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...
  • Page 12: Parity Bit

    3.1.2 Parity Bit Odd number Even number *No parity 3.1.3 Stop Bit *1 bit stop bit 2 bit stop bit 3.2 USB KBW USB KBW Keyboard 3.3 USB COM Keyboard USB COM www.hzgrow.com...
  • Page 13: Read Mode

    4 Read Mode 4.1 Manual Mode 4.1.1 Button Holding Mode Set to button holding mode, press the button to trigger reading, and release the button to end reading. If the reading is successful or the reading time exceeds the single reading time, the reading will be finished.
  • Page 14: Break Time Settlement

    4.2.1 Break Time Settlement Time between two read. Default:500ms, Unit:100ms, Range:0-9900ms You can set the break time by scanning the bar code, example: Set 0.5ms, first scan the bar code below. Then scan the “0” and “5” bar code in the Digital Setting Code (Appendix 1).
  • Page 15: Sensitivity Rating Setting

    Stable Induction Time 4.3.2 Sensitivity Rating Setting There are three levels of sensitivity to choose from, default: high sensitivity. *High Sensitivity Medium Sensitivity Low Sensitivity 4.4 Host Mode Through the instruction to trigger the reading engine, and it can end the reading by instruction, read successfully or the reading time exceeds the single reading time,the reading will be finished.
  • Page 16: Time Interval For The Same Code Read

    4.6 Time Interval For The Same Code Read It means, after reading a barcode, refuse to read the same code for a set period of time. Only after a set period of time, it can be able to read and output. Default: 500ms, Unit:100ms, Range:0-9900ms. Mainly for continuous mode and automatic induction mode.
  • Page 17: Prompts

    6 Prompts 6.1 Keyboard Settlement Scan following code to change keyboard. *American English(Default) Belgium Finland Germany France Italy Sweden Denmark Spain Norway Portugal Turkey F Turkey Q Japan Russia www.hzgrow.com...
  • Page 18: Prompts Tone

    6.2 Prompts Tone 6.2.1 Silent Mode Close All Prompts *Forbid to Close All Prompts 6.2.2 Volume Level Default: high pitch *High Pitch Middle 6.2.3 Decoding Successful Prompt Tone *Decoding Successful Prompt Tone ON Decoding Successsful Prompt Tone OFF 6.2.4 Starting Up Prompt *Starting Up Prompt ON Starting Up Prompt OFF www.hzgrow.com...
  • Page 19: Setup Code Prompt

    6.2.5 Setup Code Prompt *Setup Code Prompt ON Setup Code Prompt OFF 6.3 Decoding Prompt If the barcode cannot be decoded within the timeout period before releasing the trigger button, it is allowed to send "unread" messages.Any possible prefix or suffix can be attached to this message. When this function is disabled, no message can be sent to the host even if the barcode cannot be decoded.
  • Page 20: Data Code Format

    6.5 Data code format Read following to print Chinese data according to specified code forma. GBK format: notepad, EXCEL, UNICODE format: WORD and input box for chat tools. Unicode www.hzgrow.com...
  • Page 21: Data Edition

    7 Data Edition 7.1 CODE ID Users can identify different types of bar code by CODE ID. CODE ID use one character to identify and can be self- defined. Pls see the Appendix 3. *Not allowed to send ID Allowed to send ID 7.2 Terminator Character Terminator character is add character format after decoding data: decoded data + terminator character.
  • Page 22: Define The Data Output Mode

    Prefix Suffix 7.3.2 Define the Data Output Mode *NO Prefix and Suffix Prefix+Data Data+Suffix Prefix+Data+Suffix www.hzgrow.com...
  • Page 23: All Types Of Bar Code Can Be Decoded

    8 All Types of Bar Code Can be Decoded 8.1 UPC-A *Allow Forbid 8.2 UPC-E *Allow Forbid 8.3 EAN-8 *Allow Forbid 8.4 EAN-13 *Allow Forbid www.hzgrow.com...
  • Page 24: Bookland Ean

    8.5 Bookland EAN Allow *Forbid 8.6 UPC/EAN Extracode *Don’t read Extracode UPC/EAN Can Read Extracode UPC/EAN Only Read Extracode UPC/EAN 8.7 CODE 128 *Allow Forbid 8.8 GS1-128 *Allow Forbid www.hzgrow.com...
  • Page 25: Isbt-128

    8.9 ISBT-128 *Allow Forbid 8.10 Interleaved 2 of 5 8.10.1 I 2 of 5 *Allow Forbid 8.10.2 Interleaved 2 of 5 Identify Length Users can set to decode Interleaved 2 of 5 within a certain length range. Example:Set to decode only Interleaved 2 of 5 within 4-20 bit length range. First scan the bar code below, and then scan 0,4,2,0 bar code in Appendix 1 in sequence.
  • Page 26: Matrix 2 Of 5

    8.11 Matrix 2 of 5 8.11.1 Matrix 2 of 5 Allow *Forbid 8.11.2 Matrix 2 of 5 Identify Length Users can set to decode Matrix 2 of 5 within a certain length range. Example:Set to decode only Matrix 2 of 5 within 4-20 bit length range. First scan the bar code below, and then scan 0,4,2,0 bar code in Appendix 1 in sequence.
  • Page 27: Industrial 2 Of 5

    8.12 Industrial 2 of 5 8.12.1 Industrial 2 of 5 Allow *Forbid 8.12.2 Industrial 2 of 5 Identify Length Users can set to decode Industrial 2 of 5 within a certain length range. Example:Set to decode only Industrial 2 of 5 within 4-20 bit length range. First scan the bar code below, and then scan 0,4,2,0 bar code in Appendix 1 in sequence.
  • Page 28: Standard 2 Of 5 Identify Length

    8.13.2 Standard 2 of 5 Identify Length Users can set to decode Standard 2 of 5 within a certain length range. Example:Set to decode only Standard 2 of 5 within 4-20 bit length range. First scan the bar code below, and then scan 0,4,2,0 bar code in Appendix 1 in sequence. Change the selection or cancel an incorrect input setting, scan the bar code in Appendix 2.
  • Page 29: Code 39 Check Bit

    8.14.3 Code 39 Check Bit Transmission Check Bit No check bits are transmitted 8.14.4 Code39 Transmit Start Character and Stop Character Allow *Forbid 8.15 Code 39 Full ASCII Allow *Forbid 8.16 Code 93 Allow *Forbid 8.17 Code 11 8.17.1 Code 11 www.hzgrow.com...
  • Page 30: Check Bit Transmission

    Allow *Forbid 8.17.2 Check Bit Transmission Allow *Forbid 8.18 Codabar Allow *Forbid 8.19 PLESSEY Allow *Forbid 8.20 MSI Allow *Forbid www.hzgrow.com...
  • Page 31: Gs1-Databar

    8.21 GS1-Databar Allow *Forbid 8.22 QR Code 8.22.1 QR Code Allow *Forbid 8.22.2 Read More Yards Only Read Single Code Only read Dicode Single and Dicode can be recognized 8.23 Data Matrix 8.23.1 Data Matrix *Allow Forbid www.hzgrow.com...
  • Page 32: Data Matrix Read More Yards

    8.23.2 Data Matrix Read More Yards Only Read Single Code Only read Dicode Single and Dicode can be recognized 8.24 PDF 417 *Allow Forbid 8.25 Aztec Code Allow *Forbid 8.26 Maxi Code Allow *Forbid www.hzgrow.com...
  • Page 33: Serial Port Instruction

    9 Serial Port Instruction When the scanner is not working, it is in sleep mode.Under the sleep mode, need to wake up first, then send the effective instruction (send wake up instruction : 0x00, then send effective instruction after 50ms). To start decoding and stop decoding the serial port command needs to be valid in host mode.
  • Page 34 CR LF CR LF 08 C6 04 08 00 F2 05 05 FE 2A Turn on only 08 C6 04 08 00 F2 02 00 FE 32 8.Lamp read(Default) Control Always on 08 C6 04 08 00 F2 02 01 FE 31 Always off 08 C6 04 08 00 F2 02 02 FE 30 Turn on only...
  • Page 35 08 C6 04 08 00 F3 02 00 FE 31 Stable 08 C6 04 08 00 F3 02 01 FE 30 Inductio 08 C6 04 08 00 F3 02 03 FE 2E n time 08 C6 04 08 00 F3 02 05 FE 2C (n*100m s)...
  • Page 36: Appendix 1:Digital Setting Code

    10 Appendix 1:Digital Setting Code www.hzgrow.com...
  • Page 37: Appendix 2:Cancel Barcode

    11 Appendix 2:Cancel Barcode Change the selection or cancel an incorrect input, scan the bar code below. Cancel www.hzgrow.com...
  • Page 38: Appendix 3: Code Id

    12 Appendix 3: Code ID Code Bar code Type Characters UPC-A, UPC-E, EAN-8, EAN-13 Code 39, Code 32 Codabar Code 128, ISBT 128 Code 93 Interleaved 2 of 5 Discrete 2 of 5 CODE11 MSI, MSI/Plessey GS1-DataBar, /UCC/EAN-128 Bookland EAN, Bookland EAN/ISBN Trioptic Code 39 Coupon Code GS1 DataBar-14, GS1 DataBar...
  • Page 39: Appendix 4: Character Comparison Table

    13 Appendix 4: Character Comparison Table Scanning Keyboard Scanning Keyboard Scanning Keyboard Value Value Value Value Value Value 1000 Null 1043 1086 1001 Keypad Enter 1044 1087 1002 Caps lock 1045 1088 1003 Right Arrow 1046 1089 1004 Up Arrow 1047 1090 1005...
  • Page 40 1028 1071 1114 1029 1072 1115 1030 1073 1116 1031 1074 1117 1032 Space 1075 1118 1033 1076 1119 1034 “ 1077 1120 1035 1078 1121 1036 1079 1122 1037 1080 1123 1038 & 1081 1124 1039 ‘ 1082 1125 1040 1083 1126...

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