Little Bird
Finger Print Unit (FPC1020A)
$41.55
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The FINGER Unit (FPC1020A) is an all-in-one capacitive fingerprint sensor with built-in fingerprint registration, verification, and management. It communicat...
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The FINGER Unit (FPC1020A) is an all-in-one capacitive fingerprint sensor with built-in fingerprint registration, verification, and management. It communicates via UART and connects to M5Stack devices through the Grove C port. Configurable security levels and fast matching make it suitable for biometric access control projects.
Key Features
- All-in-One Sensor – Integrated fingerprint collection, processing, and matching
- UART Communication – Connects via Grove C port on M5Stack
- Configurable Security – 5 security levels (default: level 3)
- Fast Processing – Fingerprint matching in < 0.45 seconds
- Compact and Low Power – Suitable for portable projects
Specifications
- Fingerprint Capacity – 1000 / 1700 / 2000 / 3000 (default: 1700)
- False Acceptance Rate – < 0.001% (security level 3)
- False Rejection Rate – < 0.1% (security level 3)
- Security Levels – 1–5 (default: 3)
- Interface – UART
- Baud Rate – 9600–115200 (default: 19200)
- UART Settings – 8N1 (8 data bits, no parity, 1 stop bit)
- Characteristic Size – 193 bytes
- Processing Time – < 0.45 seconds
- Operating Temperature – -10°C to 60°C
- Operating Humidity – 20%–80%
Pin Mapping (Grove C)
- M5Core U2RXD → FINGER TXD
- M5Core U2TXD → FINGER RXD
- 5V → 5V
- GND → GND
Ideal For
- Fingerprint attendance systems
- Biometric locks and access control
- Identity verification projects
Package Contents
- 1× FINGER Unit
- 1× Grove Cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- Grove
- Grove is a standardised 4-pin plug-in connector system for sensors and modules that avoids soldering and jumper wires, with different cable types carrying I2C, UART, analogue or digital signals. When a product is Grove-compatible it can be quicker to connect supported modules, provided the connector type, signal and voltage all match.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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