Shop OBEX P1 Docs P2 Docs Learn Events
Need help. Trouble connecting to the RFID RW board #28440 — Parallax Forums

Need help. Trouble connecting to the RFID RW board #28440

karramakarrama Posts: 3
edited 2012-12-31 09:07 in General Discussion
Hi

I am using a USB to Serial converter TTL-232RG5V to connect from my laptop to the the RFID RW module. TXD is connected to SIN & RXD is connected to SOUT. The VCC is 5V. The serial connector shows up as COM3 on my laptop but when I try to run the identify command from the STAMP interpreter, it does not look like the RW module is detected. So I am unable to download the BASIC stamp2 program also.

What am I doing wrong. I have looked at the signals on a scope also and when I send the refresh command in the identify program, I can see the SIN pulled down low for 100mS and then I see a 8 bit data transmitted (250us/databit). But nothing on the SOUT line.

Please help.

Comments

  • FranklinFranklin Posts: 4,747
    edited 2012-12-30 18:16
    Do you have a ground connection?
  • karramakarrama Posts: 3
    edited 2012-12-30 22:23
    Yes. It is through the USB Cable
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2012-12-31 09:07
    You cannot detect the RFID R/W Module using the BASIC Stamp Editor software. That can only detect and download a program to a BASIC Stamp Module. Do you have a BASIC Stamp Module connected to the RFID R/W Module?
Sign In or Register to comment.