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AS608 Optical Fingerprint Sensor Module

SKU: 8ZT5YGZHQ7
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4.1 (112 reviews)
The AS608 Optical Fingerprint Sensor Module is a compact biometric identification module designed for fingerprint enrollment, recognition, verification, and user authentication applications. The module combines an optical fingerprint sensor, image-processing circuitry, fingerprint feature extraction, template storage, and matching functions in a single integrated unit. The sensor captures a fingerprint image through its optical sensing window and processes the image internally...
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The AS608 Optical Fingerprint Sensor Module is a compact biometric identification module designed for fingerprint enrollment, recognition, verification, and user authentication applications. The module combines an optical fingerprint sensor, image-processing circuitry, fingerprint feature extraction, template storage, and matching functions in a single integrated unit.

The sensor captures a fingerprint image through its optical sensing window and processes the image internally to extract unique fingerprint characteristics. These features are converted into digital fingerprint templates that can be stored directly in the module's internal memory. During verification, a newly scanned fingerprint can be compared with a specific stored template or searched against the complete fingerprint database.

The AS608 communicates with a host controller through a TTL UART serial interface, allowing commands for fingerprint enrollment, deletion, searching, matching, and database management. Common documentation specifies a configurable baud rate from 9600 to 57600 bps, with 57600 bps commonly used as the default.

The module provides fast fingerprint imaging and matching, with commonly documented versions supporting up to 162 fingerprint templates, a 500 DPI optical resolution, and fingerprint imaging in less than one second. Since image processing and template matching are handled inside the module, the connected microcontroller does not need to perform complex biometric image processing.

The AS608 is suitable for electronic door locks, attendance systems, security devices, smart cabinets, access-control systems, biometric safes, and microcontroller-based authentication projects.

Key Features

  • Optical fingerprint sensing technology
  • Integrated fingerprint image acquisition
  • Built-in fingerprint image processing
  • Supports fingerprint enrollment and registration
  • Supports 1:1 fingerprint verification
  • Supports 1:N fingerprint database searching
  • Internal fingerprint template storage
  • Stores up to 162 fingerprint templates on commonly documented versions
  • 500 DPI optical resolution on common module variants
  • Fast fingerprint imaging in less than 1 second
  • TTL UART serial communication interface
  • Configurable communication baud rate
  • Default baud rate commonly set to 57600 bps
  • Adjustable security levels from 1 to 5
  • Low False Acceptance Rate
  • Compact enclosed sensor construction
  • Integrated optical sensing window
  • Onboard fingerprint feature extraction
  • Onboard template matching and searching
  • Reduces processing requirements of the host microcontroller
  • Suitable for embedded biometric security systems
  • Easy interfacing with popular development boards

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Optical Fingerprint Recognition Sensor Module
Model: AS608
Sensing Technology: Optical Fingerprint Imaging
Measurement Function: Fingerprint Capture, Enrollment, Storage, Search and Matching
Image Resolution: 500 DPI on Common Versions
Operating Voltage: 3.3V to 5V DC on Commonly Documented Versions
Communication Interface: TTL UART Serial
Baud Rate Range: 9600 to 57600 bps
Default Baud Rate: 57600 bps
Fingerprint Imaging Time: Less Than 1 Second
Fingerprint Storage Capacity: Up to 162 Templates on Commonly Documented Versions
Template File Size: 512 Bytes
Matching Modes: 1:1 Verification and 1:N Search
Security Levels: 1 to 5
False Acceptance Rate: Less Than 0.001% at Security Level 3
False Rejection Rate: Less Than 1% at Security Level 3
Rated Current: Approximately 120mA on Commonly Documented Versions
Operating Temperature: Approximately -20°C to +50°C
Sensing Window Size: Approximately 16mm × 18mm
Typical Module Dimensions: Approximately 56mm × 20mm × 21mm, Depending on Module Variant
Host Processing Requirement: Low, Due to Internal Image Processing and Matching
Compatibility: Arduino UNO, Nano, Mega, ESP32, ESP8266, STM32, Raspberry Pi, Raspberry Pi Pico, RP2040, PIC, AVR and Other UART-Compatible Controllers.

Additional Resources

Fingerprint Sensor.PDF

FAQ

1. What is the AS608 Optical Fingerprint Sensor Module used for?

The AS608 is used for fingerprint-based identification and authentication. It is commonly used in biometric door locks, attendance systems, access-control devices, electronic safes, smart cabinets, and security projects.

2. How many fingerprints can the AS608 sensor store?

Commonly documented AS608 module versions can store up to 162 fingerprint templates in internal memory. Storage capacity can vary between module variants.

3. Can the AS608 be used with Arduino and ESP32?

Yes. The AS608 uses TTL UART serial communication and can be interfaced with Arduino, ESP32, ESP8266, STM32, Raspberry Pi Pico, RP2040, PIC, AVR, and other UART-capable controllers.

4. Does the microcontroller need to process the fingerprint image?

No. The AS608 performs fingerprint image capture, feature extraction, template generation, storage, searching, and matching internally. The microcontroller mainly sends commands and receives result codes through the UART interface.

5. How fast is fingerprint recognition with the AS608 module?

Common specifications indicate fingerprint imaging in less than one second, making the module suitable for quick user authentication in access-control and attendance applications.