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SparkFun Produkt

Varenr. SEN-19513

Fingerprint Sensor with Two-Color LED Ring


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The Fingerprint Sensor with Two-Color LED Ring (GROW R503) is a capacitive fingerprint sensor module scanner with a two-color ring indicator from Hangzhou Grow Technology Co., Ltd. designed with the intention to be used as an extension of development boards and placed remotely on Fingerprint 3 Click. The module is designed in a circular shape with a diameter of 28mm. It's important to mention that this module represents an integrated image collecting and algorithm chip together.

GROW R503 module has an image buffer and six feature file buffers. Important note for users is that all buffer contents are not saved after power failure. A fingerprint pattern template can be composed of 2-6 feature files. If the composite template has more characteristic files, the fingerprint pattern template has the better the quality. The enclosure of the module is dust resistant but not waterproof with ring indicator LED light controlled by command, and it has a high recognition rate and the flexibility to adapt on different conditions of human finger whether it’s dry, wet, a person of different ages.

This module can be connected to existing Fingerprint 3 Click board™ or to any other product that has 1.0mm pitch vertical type wire to board connector as this module and the appropriate type of communication.


  • Connector: MX1.0--6P
  • Thread: M25
  • Product external diameter: 28mm
  • Inner diameter: 23.5mm
  • Height: 19mm
  • Supply Voltage: 3.3V
  • Image Acquiring Time: <0.2 sec
  • Image Resolution: 508 dpi
  • Template Size: 768 bytes
  • Operating Temperature Range: Min. -20°C, Max. +60°C


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