Zum Inhalt springen

8552 – UART Fingerprint Reader/en

Aus JW Tech Wiki
Version vom 6. September 2026, 00:43 Uhr von JWTechPublisher (Diskussion | Beiträge) (Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex)
(Unterschied) ← Nächstältere Version | Aktuelle Version (Unterschied) | Nächstjüngere Version → (Unterschied)

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The Waveshare UART Fingerprint Reader uses an STM32F205 processor with an optical sensor and a commercial fingerprinting algorithm. Communication is via the UART interface at a default baud rate of 19200.

Related products at JW Tech

Technical overview

  • Processor used: STM32F205, dedicated to running the commercial algorithm and not available for secondary development.
  • Sensor type: Optical fingerprint sensor.
  • Interface: UART; default baud rate 19200.
  • Serial communication requires a common-ground connection between the module and the PC.
  • The MINI USB port is only for firmware updates and must remain disconnected during normal operation.
  • The BL pin controls the backlight; the module can manage it automatically, so the pin usually stays unconnected.
  • When capturing images on a host computer, set the baud rate to 9600.
  • Power consumption: dynamic approx. 18 mA, static 0 mA.

Notes and version constraints

  • No specific commands or protocol values are provided in the source; a command list must be derived separately from the user manual.
  • Exact firmware version and related compatibility limits are not specified.
  • For connecting to a PC, using a matching Waveshare USB-to-UART module is recommended; selection depends on your setup.
  • For errors such as 'mscom32.ocx', files must be copied to specific Windows folders depending on OS architecture and registered as administrator – each step requires manual verification.
  • If new fingerprints are not recognized, the 'upload eigenvalue' option must be disabled, otherwise the values are stored only on the PC and not written into the module.

Source and revision record

Abgerufen von „https://wiki.jw-tech.eu/index.php?title=8552_–_UART_Fingerprint_Reader/en&oldid=2118“