AS608 Optical Fingerprint Sensor Module
The AS608 Optical Fingerprint Sensor Module is a highly reliable and advanced biometric identification system widely used in smart locks, attendance systems, safes, door access, Arduino IoT projects, and embedded security devices. Equipped with a powerful DSP chip, the AS608 converts captured fingerprint images into digital templates stored in its internal flash memory.
This module features rapid scanning, high recognition accuracy, and anti-fake fingerprint capability, making it ideal for professional security applications. Thanks to its UART serial communication, it integrates smoothly with Arduino, NodeMCU, ESP8266, ESP32, and Raspberry Pi systems.
Explore more sensors here:
🔗 Electronics Components — https://electroway.org/product-category/electronics-components/
Compatible microcontroller categories:
🔗 Arduino Boards — https://electroway.org/product-category/arduino-and-accessories/arduino-boards/
🔗 NodeMcu Modules — https://electroway.org/product-category/iot-and-smart-solutions/iot-modules/nodemcu/
🔗 Raspberry Pi Accessories — https://electroway.org/product-category/electronic-accessories/mounts-and-cases/raspberry-pi-mounts-and-cases/
⭐ Technical Specifications
| Feature | Details |
|---|---|
| Model | AS608 |
| Type | Optical Fingerprint Recognition Sensor |
| Supply Voltage | 3.3V – 5V |
| Communication | UART Serial (TTL) |
| Fingerprint Storage | Up to 120–200 templates |
| Recognition Time | < 1 second |
| Security Level | Adjustable (1–5) |
| Image Resolution | 500 dpi |
| Working Current | < 120 mA |
| Interface Pins | VCC, GND, TX, RX |
The AS608 uses optical imaging to capture high-quality fingerprint images with enhanced matching algorithms.
⭐ Applications
🔐 Security & Access Control
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Smart fingerprint locks
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Biometric door access
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Fingerprint-protected safes
🧑💼 Office & School Systems
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Attendance systems
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Employee time tracking
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Secure login terminals
🤖 Arduino, IoT, and Embedded Projects
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Biometric-based authentication
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IoT security systems
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Custom home automation
⭐ Precautions
⚠ Keep the optical surface clean and dust-free for best performance.
⚠ Avoid scratching or pressing the fingerprint window with sharp objects.
⚠ Ensure stable 5V/3.3V power via regulated source.
⚠ Do not expose to direct sunlight for prolonged periods.
⚠ Store fingerprint templates securely in firmware for maximum security.
Need power accessories?
🔗 Power Supplies — https://electroway.org/product-category/raspberry-pi-and-accessories/accessories-raspberry-pi-and-accessories/power-supplies-accessories-raspberry-pi-and-accessories/
⭐ YouTube Tutorial (AS608 with Arduino)
📺Watch Video:https://www.youtube.com/shorts/wMwbx85R4KM
📌 Product Summary
The AS608 Optical Fingerprint Sensor is a reliable, fast, and secure biometric authentication module ideal for smart locks, attendance systems, and IoT security devices. With UART compatibility, high accuracy, and onboard template storage, it is perfect for both hobby and industrial applications.
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