Details
Round-Shaped All-In-One Capacitive Fingerprint Sensor (D), Cortex processor, 360° verification
UART Fingerprint Sensor (D)
Capacitive 360° Verification
nail plate-sized, UART commands operation
Product Features
Based on a high performance Cortex processor, combined with high-security commercial fingerprinting algorithm, the UART Fingerprint Sensor (D) features functionalities like fingerprint enrolling, image acquisition, feature finding, template generating and storing, fingerprint matching, and so on. Without any knowledge about the complicate fingerprinting algorithm, all you need to do is just sending some UART commands, to quickly integrate it into fingerprint verification applications which require small size and high precision.
- Easy to use by some simple commands, you don't have to know any fingerprint technology, or the module inter structure
- Commercial fingerprinting algorithm, supports functions like fingerprint enrolling, fingerprint matching, fingerprint image acquisition, and fingerprint feature uploading, stable performance, fast identification
- Capacitive sensitive detection, just touch the collecting window lightly for fast verification
- Highly integrated hardware, processor and sensor in one small chip, suitable for small size applications
- Narrow stainless steel rim, supports 360° omni-directional verification
- Embedded human sensor, the processor will enter sleep automatically, and wake up when touching, lower power consumption
- Onboard UART connector, easy to connect with hardware platforms like STM32 and Raspberry Pi
Specifications
parameter | value |
---|---|
Sensor | capacitive touch sensor |
Resolution | 508 DPI |
Image pixels | 160×160 |
Image greyscale | 8 |
Sensor dimension | R15.5 mm |
Fingerprint capacity | 150 |
Matching time | <500ms (1:N, and N≤100) |
False acceptance rate | < 0.001% |
False rejection rate | < 0.1% |
Operating voltage | 2.7~3.3V |
Operating current | < 50mA |
Sleep current | < 16uA |
ESD | contact discharge 8KV / aerial discharge 15KV |
Communication port | UART |
Baudrate | 19200 bps |
Operating environment | Temperature: -20°C~70°C; Humidity: 40%RH~85%RH (no condensation) |
Storage environment | Temperature: -40°C~85°C; Humidity: <85%RH (no condensation) |
Pinout definition
Outline dimensions
Resources & Services
Selection Guide
Product | Optical | Capacitive | |||||
---|---|---|---|---|---|---|---|
A | A | B | C | D | E | R | |
Pros | Durable, excellent anti-electrostatic | Small form factor, low power consumption | |||||
High precision, good detection/verification | Small collecting area, high precision, good detection/verification | High precision, good detection/verification | |||||
Cons | Large dimension, low precision, interfered by lighting | High environmental requirement (temperature, humidity, dust, alkaline air) | |||||
Features | Separated structure | Round-shaped, all-in-one | Rectangle-shaped, all-in-one | ||||
Fingerprint capacity | 4000 | 3000 | 500 | 150 | 3000 | ||
Image pixels | 248*296 | 192*192 | 208*288 | 192*192 | 160*160 | 192*192 | |
Interface | UART | UART, USB | UART | ||||
False acceptance rate | <0.001% | 0.0001% | <0.001% | <0.001% | |||
False rejection rate | <0.1% | 0.01% | 0.1% | <0.1% | |||
Sensor life time | 10 years | about 200K times | about 5M times | about 1M times | |||
Use condition | More sensitive for wet fingers | More sensitive for dry fingers | |||||
Applicable products | Used frequently, like access control system | Require high precision, like fingerprinting lock | |||||
Generally, optical modules are used in low-end products, while capacitive module are suitable for high-end products |