Fingerprint recognition technology is one of a variety of biomechanical identification techniques, and fingerprint recognition is to classify the fingerprint of the identification object to determine. Fingerprint recognition technology is gradually maturing in the new century in the new century, and enters the field of production and life in the new century. 8 fingerprint identification protocols bring you simple understanding of your fingerprint recognition.
1,51 single-chip AS608 fingerprint recognition solution
This design is based on the fingerprint recognition design of the STC89C52 single-chip microcomputer, which uses the AS608 fingerprint module as a sensor, the LCD1602 display information. With fingerprint add, fingerprint recognition, delete fingerprint function. It is a simple fingerprint identification graduation design design, circuit schematic and PCB and procedures complete. Add a simple circuit to expand as other design.
https://www.cirmall.com/circuit/8793
2. Fingerprint recognition password lock design based on single chip microcomputer
Based on the password lock of the 51 single-chip microcomputer, fingerprint identification access control system, fingerprint password lock system based on 51 microcomputer password lock, 51 single-chip fingerprint identification access control system fingerprint password lock system, function: Time display, you can query access record, you can implement fingerprint unlock Emergency unlocking (can enter the administrator mode emergency unlock in the case of fingerprint unlocking or urgent), can enter the fingerprint in the administrator mode, delete the specified fingerprint, change the password. If the fingerprint is placed, the fingerprint does not identify the success screen prompt information relay does not move, the LED light is not lit, and the buzzer will not be unlocked, the person cannot enter, press any key to return to the initial interface to continue scanning the fingerprint. If the fingerprint is placed, the fingerprint identification Success screen prompt information is shown in the following figure, the relay operation, the LED is bright and the door is blocked, and the person can enter, press any key to return the initial interface, waiting for the next person to scan the fingerprint, etc..
https://www.cirmall.com/circuit/16360
3, STM32 single-chip intelligent fingerprint recognition management door banned electronic password lock (PCB + source code + circuit diagram + paper)
The system consists of STM32F103C8T6 microcontroller, fingerprint module, relay control, LCD1602 liquid crystal, buttons.
1. The system is powered on, there are two modes to select "Fingerprint Management", "Relay Control". Fingerprint management mode Enter Search, Add, and Delete the fingerprint interface. Relay control mode, direct comparison of fingerprints to normal usage patterns. Mode switching must be reset or re-power system, theoretically, the fingerprint management mode is only managed.
2. Detect the fingerprint through the fingerprint sensor.
3. You can increase the fingerprint by pressing the button, delete the fingerprint, with power-down does not lose the fingerprint data function.
4. If the fingerprint of the fingerprint and the entry of the fingerprint library are consistent, the relay 1 is closed, otherwise the relay 1 does not operate (the relay 1 is disconnected by default).
5. After the relay is closed, it can be disconnected by pressing the button.
https://www.cirmall.com/circuit/17713
4, [Graduation Design] Fingerprint Identification Infrared Password Electronic Lock Based on MCU
Boot: Press the power supply, the power indicator lights up, the liquid crystal display: "Please press the button to refresh" Function. If the fingerprint recognition is successful, the relay action, the LED indicator is on, the unlock is successful, the person can enter, the liquid crystal display: "Fingerprint has been found, please enter"; if the fingerprint identification is unsuccessful, the relay does not move, the LED indicator is not bright, will not be able to Unlock, personnel can't enter, LCD display: "No search fingerprint, please press any key" ...
https://www.cirmall.com/circuit/12982
5, fingerprint identification electronic password lock design based on single chip microcomputer
Fingerprint detection can be well judged and defined a person's true biological identity, thereby reducing the trust costs in social activities. Fundamentally change economy and social interaction mode, and improve efficiency. In the future, social use of biological identification technology will be more and more, fingerprint recognition technology is getting more and more, fingerprint detection become more important. This design fingerprint recognition electronic password lock is based on the ZAZ-010 fingerprint module produced by Shenzhen Guo Technology Co., Ltd., which can be implemented according to the serial communication protocol, which is implemented.
Entry, storage, comparison, and display of the process and comparison of the fingerprint acquisition storage by HS12864-15C LCD. Fingerprint electronic password lock is safe and reliable, easy to use.
Https://www.cirmall.com/circuit/11185
6, DIY production, fingerprint recognition switch control panel schematic + PCB source file + program firmware
The fingerprints use Sweden's FPC1011, which is the kind of public security bureau, and the bank is used, very expensive. The master is N32901 or N32903 of the New Tang. Many people want to ask, what about your fingerprint recognition? I can only say that I get the form of library function, I have no ability to complete the identification algorithm. As for the algorithm, I only see the foreign big cattle open source on GitHub. I just tested the lower PC side, the embedded end has not been used, it is important to do it, very laborious. I only made an identification of the QT interface, I was put on my github.
https://www.cirmall.com/circuit/4063
7, fingerprint identification and keyboard password lock, you can refer to
This is a fingerprint identification and keyboard password lock based on STC89C52. Open source includes the schematic, source, PCB map, and components list, I hope to give small white references, you can use it to be used and curriculum design.
https://www.cirmall.com/circuit/9427
8, Arduino optical fingerprint recognition module
We use the fingerprint sensor module Flash memory for storing fingerprints and can be used with any microcontroller or system of the TTL serial interface. These modules can be added to security systems, door locks, attendance systems, and more.
Working power supply: DC 3.6 to 6.0V
Current: <120ma
Backlight Color: green
Interface: UART
Porture rate: 9600
Safety Level: 5 (from low to height: 1, 2, 3, 4, 5)
Error Acceptance (FAR): 1881.0.001% (Safety Level 3)
Error Refusal Rate (FRR): 1881.1.0% (Safety Level 3)
Can store 127 different fingerprints
https://www.cirmall.com/circuit/15138
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