• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Rob Spoor
  • Tim Cooke
  • Junilu Lacar
Sheriffs:
  • Henry Wong
  • Liutauras Vilda
  • Jeanne Boyarsky
Saloon Keepers:
  • Jesse Silverman
  • Tim Holloway
  • Stephan van Hulst
  • Tim Moores
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Mikalai Zaikin
  • Piet Souris

Connecting to RFID Readers

 
Greenhorn
Posts: 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
how to connect raspberry pi 3 module with uhf rfid reader
 
Marshal
Posts: 74042
332
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Welcome to the Ranch

That question should be a thread of its own, so I have created a new thread for it.
 
Saloon Keeper
Posts: 24314
167
Android Eclipse IDE Tomcat Server Redhat Java Linux
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
There are a number of ways to connect RFID readers to Raspberry Pi (and Arduino-style) devices, but it all boils down to interfaces.

The simplest interface for most of us is an RS-232 serial interface, and most of the pre-packaged readers use this, I think. The Pi doesn't have old-time PC serial and parallel ports, but a USB/RS-232 adapter is relatively inexpensive.

There are other types of interfaces as well, that can connect to the Pi's GPIO pins, but unless you do that sort of stuff for a living like me or you got a good deal on a surplus unit and want to save money, stick to the serial port option.

The actual output of RFID readers is usually just plain ASCII text, often nothing more than a verbatim copy of the data that is stored on the RFID tag or card.
 
reply
    Bookmark Topic Watch Topic
  • New Topic