Hangzhou Grow Technology Co., Ltd

Address: Room 310, Building B, Building 1, No. 279, Shiqiao Road, Xiacheng District, Hangzhou


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R300 capacitive fingerprint module
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R300 capacitive fingerprint module

Effective Collection Area
Sensor Array
Fingerprint Capacity

Model: R300 Brand: GROW Material: Mixture Origin: China Output Model Category: Digital Sensor Working Principle: Biosensor Sensor Category: Biometric Sensor Operating Voltage: 5V

The R300 capacitive fingerprint module integrates a fingerprint algorithm chip with functions such as fingerprint entry, image processing, feature extraction, template generation, template storage, fingerprint comparison (1:1) or fingerprint search (1:N).

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The product includes: 1 piece of R300 fingerprint module, 1 piece of 6-core connection short line

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Technical parameters: 

Supply voltage: DC 4.2--6.0V

Supply current:

Working current: 30mA (typical)

Peak current: 40mA

Fingerprint image entry time: <0.3 seconds

Acquisition window area: 12*12 mm

Image pixel: 160*160 pixel

Image resolution: 508dpi

Board size: 33.4*20.4  Board thickness 1.0mm

Matching method:

Comparison method (1:1)

Search method (1:N)

Storage capacity: 200 pieces 

Security level: five levels (low to high: 1, 2, 3, 4, 5)

Fake rate (FAR): <0.0001%

Rejection rate (FRR): <1.0%

Search time: <0.3 seconds (1:1000 hours, average)

Host computer interface: RS232 (TTL logic level, 3.3V), USB

Communication baud rate: (9600╳N)bps where N=1~12 (default value N=6, ie 57600bps)

Working environment:

Temperature: -20°C-+45°C

Relative humidity: 10% RH-85% RH (no condensation)

The circuit diagram is as follows:

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In addition: 5,6 feet are used in battery-powered applications, the touch-sensing power supply is DC3.3V-5V, the current is about 5uA, it must be always powered, and when there is a finger, the sensor outputs a high level, wake-up the microcontroller to the fingerprint module. Electricity, so as to achieve the purpose of power saving.

To install the bracket you can click on the following link:


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To access the shell you can click on the following link:




1. The price does not include tax, please do not bargain for a small amount of purchase. More than 10 sets of prices are negotiable.

2. Packaging: Industrial packaging for parts

3. Because this product is a component, you need to have a certain professional foundation during development, and do not provide basic technical support; there are quality problems that can be exchanged and cannot be returned. For the application of this product on a large scale, technical support is provided directly by the manufacturer. .

4. Since the fingerprint module is a component, its interface has no protection circuit. Don't make mistakes when wiring and power supply. Otherwise, burning the main chip is not guaranteed. Pay special attention to student friends.

5. The surface of the acquisition chip is scratched, and the traces and wear are not guaranteed. Please do not scratch or hit the hard object when using it.

6. I am unable to provide teaching services because I don't know the technology. Students and friends should be careful to purchase. Please contact the buyers who have high requirements for service.

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