Our new friend @erfritts asked about uses of RFID and HMIs and what others had come up with in this topic. But alas, since he’d locked the topic by marking it solved (no worries, been there, still there! ), I thought it appropriate to start a new thread here to continue on.
So, like Arnold Horshack, I’ll start: “Ooh! Ooh!”
This didn’t go to the HMI directly, it went to PLC. I designed a dual-head reader system for fixture ID on an assembly line. At the time, it would have cost us $1500-$1800 to integrate one in from Pepperl+Fuchs or Omron. Being thrifty (read ‘cheap’) I put this together for under $150. Written to output a binary representation of the fixture ID, but a serial port is there to expand into sending the actual Tag ID over RS232.
My board layout:
Reader head assembly:
Heck, I’ll toss in the program and documentation. Done under MIT license.
Dual.RFID.Reader.zip (154 KB)