Introduction
Security is the one thing that needs a permanent solution. Either the security of your home, offices, the industry where you work, or the devices, or gadgets you use daily. Thus, to address those security issues, there are different sensors available. The fingerprint sensor module is used to verify identity. We widely used it for door locks, computers, cell phones, access control systems, security safes, etc
An Overview of GTM-5210F52 Sensor
The GT-521FX2 is a high-performance fingerprint module that can be wakened by a finger touching the metal frame of the sensor. It is one chip fingerprint module designed for integration into products with a UART interface. It configures as a USB mass storage device so it does not need additional effort to handle the driver. The active area allows stable imaging and the ability to cope with mass-market applications in need of both security and convenience.
Features and Specifications of GTM-5210F52
Features
- Simple UART & USB communication protocol
- Complies with USB 2.0 full-speed (12Mbps) specification
- Ultra-thin optical sensor
- Resolution 450 DPI
- GT-521F52 3000 fingerprints storage,GT-521F32 200 fingerprintsstorage
- Wake up on Finger Function
- Works well with dry, moist, or rough fingerprints
- Anti-Scratch with surface high hardness≧ 5H
- 1:1 verification, 1:N identification
- Reading & writing fingerprint template(s) from/to the device
- High-accuracy and high-speed fingerprint identification technology
- Downloading fingerprint image from the device
- Convenient & Safe & Facilitation—Just one touch and easy to enroll
- Capable of 360° recognition, fingers can press the sensor from any direction
- Capable of 1:N identification (identify the ID of the pressed finger from the enrolled fingerprint database)
- Security Level: 1-5, default is 3. The higher the value, the higher the security level and the module adopts more stringent conditions when identifying the fingerprint.
Specifications
- Supply Voltage: DC 3.3V ~ 6V for the fingerprint sensor module, 3.3V for the touch IC
- Operating current: < 130mA
- Microcontroller: HT32F22366, 32-bit ARM® Cortex®-M3 core
- Number of fingerprints: 3000 (storage ID is from 0 to 2999)
- UART interface (3.3V level, TTL)
- Baud Rate: 9600, 19200, 38400, 57600, 115200 (default is 9600)
- The effective area of the fingerprint sensor: is 14mm x 12.5mm
- Fingerprint image size: 258 x 202 pixels
- Resolution: 450 dpi
- Fingerprint template file: 498 bytes
- Enrollment time: < 3 seconds (3 fingerprints)
- Identification time: < 1.5 seconds (3000 fingerprints)
- False Acceptance Rate(FAR): <0.001% (security level 3)
- False Reject Rate(FRR): <0.1% (security level 3)
Pinouts
| Name | Description |
| VDD | Power voltage that range is 3.3V |
| GND | Ground |
| ICPDA | Program mode： In-circuit programming data/address pin. VIL = 0.66V, VIH = 2.64V |
| ICPCK | In-circuit programming clock pin Normal mode： It could be a wake-up function from touch IC to VIL = 0.66V, VIH = 2.64V |
| TX | Transmitting serial da |
| RX | Receiving serial data |
| GND | Ground |
| VCC | Power voltage that range is from 3.3~6V |
Applications
Fingerprint lock
With the help of the microcontroller and this module, we can utilize this in different fingerprint door lock systems for various places and devices.
Access Control System
One can control different appliances using this sensor. And, for this, we don’t have to provide force to press a button like the regular switch. This may be the reason that ouch sensing technology is growing day by day.
