Shop OBEX P1 Docs P2 Docs Learn Events
RFID Time Clock — Parallax Forums

RFID Time Clock

Computer Geek 101Computer Geek 101 Posts: 179
edited 2007-12-07 15:25 in Robotics
Here is the first version of my RFID Time Clock.· It uses a PINK to send the data via UDP to the server.· It also can use the Emic to speak what is on the LCD Display(as soon as the Emic is back).· I put a 1w amplifier to make the speech loud enough.· There is an EEPROM for storing display messages on the clock(is cycles between the date/time and the message).
IMG_0317.JPG
713 x 513 - 80K
IMG_0321.JPG
768 x 552 - 66K
IMG_0323.JPG
926 x 1045 - 206K
IMG_0347.JPG
614 x 461 - 64K
IMG_0348.JPG
614 x 461 - 82K

Comments

  • BergamotoffBergamotoff Posts: 20
    edited 2007-12-05 14:28
    Professional, excelent work [noparse]:)[/noparse] Praud of you [noparse]:)[/noparse]
  • Computer Geek 101Computer Geek 101 Posts: 179
    edited 2007-12-05 14:46
    thanks. Im hoping to get a better looking case for it. As you can see I'm not real good at cases!
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2007-12-05 17:46
    Computer Geek,

    Very nice project! Can you post your code? About the only thing I see that may give you trouble is the RTC. I cannot tell from your pictures what chip you’re using, but many, like the DS1302 have mounting guidelines for the crystal since they’re sensitive to many things. One is heat and your regulator is almost touching it. Other than that everything looks great! And by the way, I am no master at milling cases myself. =)

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
  • Computer Geek 101Computer Geek 101 Posts: 179
    edited 2007-12-05 20:24
    I think I can post some. I'll check to make sure no password or other specific data is in it. Thanks for the info about the crystal. I'll work to modify its position. BTW any chance Parallax will have an EMIC before Feb?
  • Computer Geek 101Computer Geek 101 Posts: 179
    edited 2007-12-06 15:45
    Chris,
    I did have one question about the PINK. When sending UDP, does the register that tells you an incomming UDP message has arrived get set before the actual message gets set? I have had a little problem with that and it seems a pause after reading the "got message" and actually reading the message has fixed it.
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2007-12-06 16:30
    Hello,

    There is no issue that I am aware of. The most likely thing I can think of is that if your SERIN times out before the message was sent perhaps you’re seeing your own previous data? I can certainly retest the routine. In my tests I sent out a message and then waited for the receive bit to be set, immediately retrieving the return message and displaying it. So there should be no issues there. Are you pausing before sending the command to retrieve the message or after (before your SERIN)?

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
  • Computer Geek 101Computer Geek 101 Posts: 179
    edited 2007-12-06 18:02
    OK I'm an idiot i saw a something stupid that probably caused it.


    Post Edited (Computer Geek 101) : 12/6/2007 6:19:26 PM GMT
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2007-12-07 15:25
    CG,

    Can you post what it was? I may help someone else avoid the same issue in the future. Take care.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
Sign In or Register to comment.