ZFM-70 SeriesFingerprint Identification Module User Manual
www.zhiantec.com Hangzhou Zhian Technologies Co.,Ltd
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Content
Revisions ....................................................................................................................................... 4
Content ................................................................................................................................................. 5
I Introduction........................................................................................................................................ 7
1.1 characteristics .............................................................................................................................................. 7
1.2 New features ................................................................................................................................................ 7
1.3 Operation Principle ...................................................................................................................................... 8
1.4 Order Information ........................................................................................................................................ 8
II Main Parameters ............................................................................................................................. 10
III Hardware Interface ........................................................................................................................ 11
3.1 Serial Communication ................................................................................................................................11
3.1.1 Hardware connection ....................................................................................................................11
3.1.2 Serial communication protocol ................................................................................................ 12
3.1.3 Reset time ................................................................................................................................ 12
3.1.4 Electrical paramenter (All electrical level takes GND as reference) ....................................... 12
3.2 USB communication .................................................................................................................................. 13
IV System Resources ......................................................................................................................... 15
4.1 Buffer ................................................................................................................................................... 15
4.1.1 Image buffer ............................................................................................................................. 15
4.1.2 Character file buffer ........................................................................................................................ 15
4.2 Fingerprint Library .............................................................................................................................. 15
4.3 System Confiuration Parameter ........................................................................................................... 15
4.3.1 Baud rate control (Parameter Number: 4) ....................................................................................... 15
4.3.2 Security Level (Parameter Number: 5) ........................................................................................... 15
4.3.3 Data package length (Parameter Number: 6) .................................................................................. 16
4.4 System status register .......................................................................................................................... 16
4.5 Module password ................................................................................................................................. 16
4.6 Module address .................................................................................................................................... 16
4.7 Notepad ................................................................................................................................................ 16
V Communication Protocol ............................................................................................................... 18
5.1 Data package format ............................................................................................................................ 18
Instruction set summary ................................................................................................................................... 19
3.1.5 Classified by functions ............................................................................................................. 19
3.1.6 Classified by instruction order ................................................................................................. 20
5.2 Check and acknowledgement of data package .................................................................................... 20
5.3 Brief Work flow ................................................................................................................................... 21
VI Module Instruction System ........................................................................................................... 23
6.1 System-related instructions .................................................................................................................. 23
6.1.1 Verify passwoard...................................................................................................................... 23
6.1.2 Set password ............................................................................................................................ 23
6.1.3 Set Module address .................................................................................................................. 24
6.1.4 Set system parameter ............................................................................................................... 24