The R307 is an optical fingerprint reader module that captures, stores and matches fingerprints on its own.
The R307 is an optical fingerprint reader module that captures, stores and matches fingerprints on its own. It talks to Arduino, ESP32 or Raspberry Pi over a simple UART (serial) connection and can store up to 1000 fingerprints internally, so building a fingerprint door lock or attendance system becomes easy.
| Sensor | Optical fingerprint |
|---|---|
| Storage capacity | 1000 fingerprints |
| Interface | UART (TTL), default 57600 baud |
| Supply voltage | 4.2V – 6V DC |
| Matching | 1:1 and 1:N |
| Image resolution | 500 DPI |
| FAR / FRR | < 0.001% / < 1% |
| Search time | < 1 second |
What is the operating voltage?
4.2V – 6V DC.
Which library works with R307?
The Adafruit Fingerprint Sensor library for Arduino and ESP32.
How many fingerprints can it store?
Up to 1000.
Can I buy the R307 Optical Fingerprint Reader Sensor Module in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
