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Grow R303S FPC1020 USB UART Interface Capacitive Fingerprint Module with Free Sdk

Basic Information

Place of Origin:	China
Certification:	CE

Minimum Order Quantity:	1
Packaging Details:	Carton
Delivery Time:	Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays
Payment Terms:	T/T,PayPal
Supply Ability:	5000

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Detail Information

Model NO.:	R303S	Screen:	As Picture
Communication Interface:	RS232, USB	Fingerprint Capacity:	1000
Voltage:	DC 4.2-6.0V	Effective Collection Area:	11 * 15 (mm)
Fingerprint Module Size:	20.4 * 33.4 (mm)	Sensing Array:	208*288 Pixel
Resolution:	508 Dpi	Fingerprint Chip:	FPC1020
Work Current:	<55mA	Security Level:	1-5, Default Is 3
Transport Package:	Standard Export Carton Package	Specification:	Fingerprint Module Size: 20.4 * 33.4 (mm)
Trademark:	GROW	Origin:	China
HS Code:	8471609000	Supply Ability:	5000
Package Size:	13.00cm * 8.00cm * 9.00cm	Package Gross Weight:	0.100kg
Voice Service:	Without Voice Service	Clock:	Without Clock
Color:	As Picture	Customization:	Available \| Customized Request
Shipping Cost:	About Shipping Cost And Estimated Delivery Time.	Payment Method:	Initial Payment Full Payment
Currency:	US$	Return&refunds:	You Can Apply For A Refund Up To 30 Days After Receipt Of The Products.
Highlight:	Optical Fingerprint Sensor Module , Optical biometric sensor for arduino , 508 Dpi Fingerprint Sensor Module

Product Description

Description

·Communication interface : USB and UART
·1:N Identification (One-to-Many)
·1:1 Verification (One-to-One)
·High speed fingerprint identification algorithm engine
·Self study function
·Fingerprint feature data read/write functions
·Get Feature Data of Captured fingerprint and Verify/Identify Downloaded Feature with Captured
·Fingerprint Identify Downloaded Feature with Captured fingerprint
·Security Level setting
·Able to set BaudRate/ Device ID/Device Password
·Operating system:Windows 98, Me, NT4.0, 2000, XP,WIN 7 or Android

Specifications

·Interface:USB 2.0 and UART(3.3V-TTL logic)
·Resolution:508 DPI
·Work Current: <55mA
·Voltage: DC 4.2-6.0V
·Fingerprint capacity:1000
·Security Level: 1-5, default is 3
·Sensor Array: 208*288 pixel
·Fingerprint reader module size: 20.4 * 33.4 (mm)
·Effective collection area: 11 * 15 (mm)
·ScanningSpeed: < 0.2 second
·Verification Speed: < 0.3 second
·Matching Method: 1:1; 1:N
·FRR (False Rejection Ratio): ≤0.01%
·FAR (False Acceptance Ratio): ≤0.00001%
·Work environment: -20°C ---55°C
·Work Humidity: 20-80%
·Communications baud rate (UART): (9600 × N) bps where N = 1 ~ 12(default N = 6, ie 57600bps)

Files

·All fingerprint module support with Arduino, Android, Windows, Linux, .Net and so on.
·Provide Free SDK Files
·Provide User Manual

Why do fingerprint modules fail in cold weather?

In cold weather conditions, the recognition performance of fingerprint modules is often affected, resulting in recognition failure or slower recognition speed. Behind this phenomenon, there are multiple complex reasons hidden.

Firstly, cold weather causes the skin on the fingers to become dry. As the temperature decreases, the humidity in the air also decreases, which accelerates the evaporation of moisture on the surface of the finger skin, making it dry and rough. Dry skin not only makes it difficult to form clear fingerprint images, but also affects the sensor of the fingerprint scanner in capturing fingerprint information. Especially for capacitive fingerprint modules, their working principle relies on the tiny capacitance changes on the surface of the finger skin, and dry skin can significantly affect these capacitance changes, leading to recognition failure.

Secondly, cold weather can also affect the blood circulation of fingers. In order to maintain body temperature, the body's protective mechanism reduces blood circulation in the limbs to minimize heat loss. This change will cause a decrease in the temperature of the finger skin, slow down blood circulation, and thus affect the conductivity of the skin. Capacitive fingerprint scanners rely on changes in the conductivity of the skin surface to capture fingerprint information when recognizing fingerprints. Therefore, the decrease in conductivity will directly affect the recognition performance of fingerprint modules.

In addition, cold weather may also cause cracking or peeling of finger skin. Under the dual effects of dryness and cold, the skin of fingers is prone to cracking or peeling. These minor damages on the surface of the skin can interfere with the recognition process of the fingerprint scanner, making the fingerprint information blurry or difficult to recognize.

In summary, the negative impact of cold weather on the recognition performance of fingerprint modules is mainly due to dry finger skin, slow blood circulation, and skin cracking or peeling. These factors work together to make it more difficult to use fingerprint modules for identity verification in cold weather.

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Grow R303S FPC1020 USB UART Interface Capacitive Fingerprint Module with Free Sdk

Optical Fingerprint Sensor Module

Optical biometric sensor for arduino

508 Dpi Fingerprint Sensor Module

Description

Specifications

Files

Why do fingerprint modules fail in cold weather?

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