UART Fingerprint Sensor (G)
| SKU | Product |
|---|---|
| 35671 | UART Fingerprint Sensor (G) |
Features
This product uses a high-performance Cortex-core main controller and integrates a highly secure commercial fingerprint algorithm, supporting functions such as fingerprint enrollment, image capture, template extraction, and fingerprint comparison. Users do not need to deeply understand complex fingerprint recognition algorithms; they can carry out secondary development simply by sending commands over the serial port, making it suitable for fingerprint recognition application scenarios with high requirements for size and accuracy.
- Simple to operate, with no need to understand the fingerprint algorithm or internal structure; the corresponding operations can be completed with simple commands
- Built-in commercial algorithm, supporting fingerprint enrollment, fingerprint comparison, fingerprint image extraction, and template upload, with stable performance and fast recognition speed
- Uses capacitive fingerprint recognition with sensitive response; a light touch on the capture window is enough to complete recognition quickly
- High hardware integration, with the main controller and fingerprint sensor integrated into one unit, making it easy to embed into small-size application scenarios
- Built-in human body sensing device, supporting power-down sleep and touch wake-up functions to effectively reduce power consumption
- Capture window equipped with an LED indicator, indicating fingerprint capture status in real time
- Onboard UART serial communication interface
- Can be easily connected to a PC for use with the host software, and also supports embedded hardware platforms such as STM32 and Raspberry Pi
Application Scenarios
- Fingerprint locks
- Fingerprint safes
- Fingerprint access control
- Fingerprint time and attendance
Specifications
| Parameter | Specification |
|---|---|
| Model | UART Fingerprint Sensor (G) |
| Sensor Type | Capacitive touch sensor |
| Resolution | 508 DPI |
| Image Pixel Array | 192 × 192 |
| Fingerprint Template Size | 448 bytes |
| Sensor Dimensions | 9.6 × 9.6 (mm) |
| Fingerprint Capacity | 1000 fingerprints |
| Comparison Time | < 0.5 s (1 : N, and N ≤ 500) |
| False Acceptance Rate | < 0.001% (security level 3) |
| False Rejection Rate | < 2% (security level 3) |
| Operating Voltage | 3.3 V |
| Operating Current | < 60 mA |
| ESD Test | ESD IEC 61000-4-2 LEVEL 4 ±15 kV air discharge |
| Communication Interface | UART (TTL) |
| Communication Baud Rate | 115200 bps (supports 9600 bps to 115200 bps) |
| Operating Environment | Temperature: -10 ℃ to 60 ℃; Humidity: 0 %RH to 90 %RH (non-condensing) |
Interface Description
| No. | Signal Definition | Description |
|---|---|---|
| 1 | VCC | Sensor chip constant power (3.3 V) |
| 2 | IRQ/WAKEUP | Finger touch wake-up signal output, high level output; a high level is output whenever a finger touches it |
| 3 | VIN | Power (+3.3 V); when ultra-low standby power consumption is required, this pin must be connected to a controllable power supply |
| 4 | UART_TX | UART transmit |
| 5 | UART_RX | UART receive |
| 6 | GND | Common ground |
Dimensions
For the module outline and mounting dimensions, see the dimension drawing below.
