JM-101 Fingerprint Sensor

JM-101 Fingerprint Sensor Module

Optical Biometric Fingerprint Recognition Sensor

The JM-101 Fingerprint Sensor is a compact and reliable optical biometric identification module designed for secure fingerprint authentication. It integrates fingerprint image acquisition, processing, feature extraction, and matching within a single unit, making it ideal for Arduino, Raspberry Pi, ESP32/ESP8266, and embedded security projects.

With its robust optical scanner and fast response time, the JM-101 provides accurate fingerprint recognition for access control and identity verification systems.

Key Features

• Optical Fingerprint Scanning Technology

• High Recognition Accuracy

• Fast Fingerprint Matching Speed

• UART Serial Communication Interface

• Low Power Consumption

• Compact, Durable Housing

• Supports Fingerprint Enrollment & Verification

Working Principle

The JM-101 uses an optical imaging system to capture fingerprint patterns.
Captured images are processed internally to extract unique fingerprint features, which are stored as templates.
During verification, the scanned fingerprint is compared with stored templates to confirm identity.

Technical Specifications (Typical)

• Sensor Type: Optical Fingerprint Sensor

• Model: JM-101

• Operating Voltage: 3.3V – 5V DC

• Operating Current: ≤ 120 mA

• Communication Protocol: UART (TTL)

• Baud Rate: 9600 bps (default)

• Recognition Time: < 1 second

• Image Resolution: High-resolution optical scan

• False Acceptance Rate (FAR): < 0.001%

• False Rejection Rate (FRR): < 1%

Memory & Capacity

• Fingerprint Template Storage: Up to 1,000 fingerprints (model dependent)

• Internal Flash Memory: Yes

• Template Type: Optical feature-based

Pin Configuration

• VCC: Power Supply

• GND: Ground

• TX: UART Transmit

• RX: UART Receive

Module Construction

• Optical Scanner Window:

  • Scratch-resistant transparent surface

  • Optimized angle for finger placement

• Protective Housing:

  • Durable black enclosure

  • Designed for repeated use

• Multi-Color Connecting Wires:

  • Easy integration with microcontrollers

Applications

• Biometric access control systems

• Attendance and time-tracking systems

• Smart door locks

• Secure authentication devices

• Home and office security

• IoT-based identification systems

• Educational and research projects

Advantages

• Eliminates passwords and keycards

• High reliability and long service life

• Easy integration with embedded platforms

• Secure and user-friendly authentication