معرفی
این ماژول با میکروکنترلر های 8051، MSP430 ، AVR، PIC ،ARM ، FPGA، STM32 و آردوینو قابل راه اندازی می باشد. ماژول اثر انگشت از طریق پورت سریال قابل کنترل است، بنابراین شما می توانید از پورت سریال کامپیوترتان برای کنترل این ماژول استفاده کنید. این ماژول دارای یک سنسور نوری اثر انگشت، پردازنده ی DSP سرعت بالا، الگوریتم های تطبیق اثر انگشت با عملکرد بالا، چیپ های فلش ظرفیت بالا و ترکیبی از دیگر سخت افزارها است.
مشخصات
ولتاژ تغذیه: 3.3 ولت
جریان تغذیه: حداکثر 60 میلی‌آمپر
رزولوشن: 500 dpi
حداکثر زمان ثبت تصویر اثرانگشت: 1 ثانیه
پایه ها
V+: تغذیه ماژول – 3.3 ولت
GND: زمین
TX: فرستنده سریال
RX: گیرنده سریال
Introduction
Secure your project with biometrics – this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. It’s easy to use and more affordable than ever!
These modules are typically used in safes – there’s a high powered DSP chip that does the image rendering, calculation, feature-finding, and searching. Connect to any microcontroller or system with TTL serial, and send packets of data to take photos, detect prints, hash, and search. It comes with an 8-pin 1mm pitch connector with 0.1″ header sockets for plug-and-play.
You can also easily cut off and solder directly to the wires. The cable is color-coded so it’s easy to wire up:
Red is 3.3V powe
Black is TTL Serial T
Yellow is TTL Serial RX
Green is Ground
Description
The fingerprint algorithm extracts features from the acquired fingerprint image and represents the fingerprint information. The storage, comparison, and search of fingerprints are all done by operating fingerprint features.
Fingerprint processing includes two processes: fingerprint registration process and fingerprint matching process (in which fingerprint matching is divided into fingerprint comparison (1:1) and fingerprint search (1:N) two ways).
When the fingerprint is registered, two fingerprints are entered for each fingerprint, and the input image is processed twice. The synthesis module is stored in the module.
When the fingerprint is matched, the fingerprint sensor is used to input the fingerprint image to be verified and processed, and then it is compared with the fingerprint module in the module (if it is matched with a module specified in the module, it is called fingerprint comparison mode, ie, 1:1 mode. If matching with multiple modules is called fingerprint search, ie 1:N mode, the module gives the matching result (pass or fail).
Specification
Supply voltage: DC 3.3V-6v
Supply Current: Current: 120mA
Peak current: 140mA
Fingerprint image time: 1.0 seconds
Window size: 14 x 18 mm
Signature File: 256 bytes
Template files: 512 bytes
Storage capacity: 1,000
Safety level: five (from low to high: 1,2,3,4,5)
False Accept Rate (FAR): 0.001% (security level 3)
False Reject Rate (FRR): 1.0% (security level 3)
Search time: 1.0 seconds (1:500, the mean)
PC Interface: UART (TTL logic level) or USB2.0 / USB1.1
Communication baud rate (UART): (9600 x N) bps where N = 1 ~ 12 (default value N = 6, ie 57600bps)
Working environment
Temperature: -20 ° – +50 °
Relative Humidity: 40% RH-85% RH (non-condensing)
Storage environment:
Temperature: -40 ° – +85 °
Relative humidity: 85% H (non-condensing)
Dimensions (L x W x H): 56 x 20 x 21.5mm