Is it always worried about every time I go out? I often spend the Kung Fu and go home to see, otherwise I will be hard, greatly reduce the work efficiency? With a wisdom lock, no matter whether it is on the road or in the company, as long as the mobile phone App will view the door to the house at any time, anywhere; for young small white-collar workers, concise and extremely technical design, and the most attractive mobile phone Bluetooth induction in the middle. As long as the door lock sensation can be automatically opened to the Bluetooth signal of the certified mobile phone, it also solves the worry of the two hands to make the heavy object. You can realize the switch of the door lock, how cool and convenient! A variety of life scenes means that the smart lock industry will inevitably grow, and the Bluetooth smart lock is a relatively common.
1, [Graduation Design] Based on SMS Fingerprint Identification Infrared Password Electronic Lock
Be
Features:
1) Press: Press the power supply, the power indicator lights up, the liquid crystal display: "Please press the button to refresh", press the button, LCD display: "Please press the fingerprint", and the fingerprint module green light is on, you can finish Identify the unlocking 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".
2) Administrator mode: Press the button to enter the administrator mode First, you want to enter 6-digit password. The password can enter the administrator mode. If the password error cannot enter the administrator mode, you can complete the entry fingerprint, remove the fingerprint, emergency Unlock and modify the password function. After entering the fingerprint mode, the fingerprint module green light is on, put the finger on the fingerprint, entry the same finger twice, at this time, the liquid crystal display "fingerprint collection is successful". In delete fingerprint mode, the liquid crystal display "Enter the Deleted Founder". After entering the confirmation button, the deletion function of the specified fingerprint can be completed, and the liquid crystal display "Delete the texture". In abnormal cases, emergency unlocking functions can be used if the fingerprint module is not easy to use or in an emergency. Password modification features that you can modify and save 6-digit passwords entering the administrator.
Scenario: https://www.cirmall.com/circuit/12982
2. Electronic password lock based on STM32F407
Function review:
This design is mainly based on STM32F407 as a master chip, which consists of a STM32-based electronic password lock by mounting a 3.2-inch LCD screen, relay and an electromagnet lock. This design can be used on power-on, and you need to click on the screen to calibrate the calibration of the screen coordinate. Screen calibration Success screen will display blue English word of Adjust success. Then the screen will appear on a dial-up keyboard in the mobile phone. This design supports the function of entering the password and modifying the password. The default unlock password is "123456", using the modified password function to enter the administrator password "0000". The administrator password cannot be modified in the electronic lock, requiring modifications, need to be reburn the program.
Scenario: https://www.cirmall.com/circuit/16338
3, DIY makes electronic password lock, OLED display time and password
Hardware parts:
When the R7F0C809 development board core board and each module portion such as the AD button, the EEPROM, RTC clock, and the OLED display module and buzzer connection, display real-time time, wait for the password, or the doorbell button is pressed. Equivalence
Software section:
The ADC acquisition, interval timer wakeup MCU, IIC and EEPROM and RTC clock communication are implemented, and the hardware SPI's display control and buzzer output control on the passive buzzer, called sound control, etc. Function.
Electronic password lock main function:
1. Implement the button interrupt function, the interruption is given to alert prompt;
2. Realize communication, storage password, and power-down no loss;
3. Implement the control of the PCF8563 is the RTC clock, providing the system to the system accurate time;
4. Implement the detection of the AD button, wake up through the channel 0 of the timer 0, so that the button reaches a good experience;
5. Implement the control of the OLED, display real-time time, and prompts after password input.
Scenario: https://www.cirmall.com/circuit/5193
4, based on Ti CC2640 low-power Bluetooth smart lock scheme
Core technology advantage
1. Users can unlock or lock the smart lock via mobile phone app or mobile phone WeChat
2. This app is equipped with GPS, GSM and other parts. It has been widely used in shared bicycle products.
Program specifications
1. Use 4 AA batteries to supply power, can be used for up to 5 years
a. 24 locks or unlock events per day
b. Radio connection cycle
2. Motor driver DRV8833 integrates FET and current detection comparators, simplifies design, reduced the overall size of the scheme, less peripheral discrete components
3. Adopting the double-level ultra low IQ buck converter for low-power wireless applications TPS62745 as power conversion devices
4. Use third-party iOS and Android applications to perform BLE communication test, and the advertising interval can be configured to 4 seconds.
Scenario: https://www.cirmall.com/circuit/16107
5, iris access control system design
First, product overview
The working principle of SW-IRCTL iris access is: use iris recognition, 13.56M card identification technology intelligently controls the door. After reading the iris information acquisition or the internal information of the M1 card, the information compared with the internal storage, see if it is a valid information, the alignment, open the door, otherwise it will not open the door.
You can add, modify, delete, etc., modify, delete, etc., by the host computer client software.
Time to open the electronic lock can be adjusted manually.
The main application direction of the product: the place with strict requirements of entering personnel, adopting iris biological identification technology, or using the M1 card or ID card identification, according to the requirements of the verification method according to yourself.
The product is rechargeable battery. When an unexpected power outage, the battery can supply power to the system, maintain the normal operation of the access control system, and use the door switch to open the door. You need to use the mobile phone mobile power to connect to the iris equipment to supply it to it. When you come back, the board will automatically charge the rechargeable lithium battery.
Main function of the product: the switch of the intelligent control door.
Communication Function: Support TCP \ IP Communication.
Second, technical parameters
l Power supply: AC220V ± 10%, 50Hz ± 10%
LRFID: 13.56M complies with ISO14443A protocol
l Maximum working current: 1000mA
l Static working current: 200mA
l Working environment: temperature -10 ~ + 55 ° C
l Humidity 10 ~ 80% RH
l Save temperature: -25oC to 80oC
l load current: 200-1000mA
l Load power: maximum 8W
l iris information capacity: 30,000
l Read the card effective distance: <5cm
l iris levy rate. 1881.0.0001%
l iris film rejection rate. 1881.0.0001%
L iris contrast time. 1881.0.1s
l Working current: changes according to the working current of the load lock. General case
Mount electrical interrupt work static operating current is 200mA, unlocking current is 1000mA (transient) 250mA (normal);
Map of electromagnetic locks The static operating current is 780mA, and the unlocking current is 200mA (the lock has been powered off);
The static operating current of the cathode lock is 200mA, the unlocking current is 480mA;
The static operating current of the electric control lock is 200mA, the unlocking current is. 1881.400mA;
The static operating current of the motor lock is 200mA, the unlocking current is. 1881.400mA;
Third, pay attention
n The access control equipment requires a separate 220 ~ V power supply, do not use the same circuit with the power control class node, AC motor or large relay control.
n The installation environment is tried to ventilate and dry.
n Electric lock is not too far from the access control.
n It is recommended to avoid installing wet places.
N Do not install where children have easily encountered.
n The distance from the access control is not too far from the iris equipment.
Scenario: https://www.cirmall.com/circuit/15943
6, single-chip RFID IC card access control system (circuit + simulation + program)
Function status description:
1. Single-chip + button + IC read-write module + DS1302 + LCD1602 LCD design
2. The liquid crystal can display the current time in real time, so that the user is used, with the power-off time function.
3. You can add or delete the memory function of the IC card, so that users are more flexible.
4. With the dual prompt function of the indicator and buzzer, the green light indicates that the red light indicates that it is prohibited.
5. Relay simulates electronic lock, closed state is an unlocking state, and it is indiscriminate.
Scenario: https://www.cirmall.com/circuit/9491
7. Fingerprint identification 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..
Scenario: https://www.cirmall.com/circuit/16360
8, based on 51 single-chip electronics password lock (graduation design)
Electronic password lock function description:
Suitable for graduation design, the electronic cryptographic lock main control board based on the 51 kernel development version, can be powered, modify the password, password error 3 alarm and lock the keyboard, have a doorbell function, etc.
At P2 ^ 0 port, a low level drive relay (free Taobao price is about 5 yuan), relay pick a electronically controlled lock (Taobao price 18 yuan), the last connection is unclear or we will help us.
Attachment contents include:
The entire circuit design schematic and PCB source file, open with AD software;
C language source program (with detailed Chinese comment);
PROTEUS circuit simulation;
Scenario: https://www.cirmall.com/circuit/1611
Be
Source: Circuit City
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