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Parallax Servo Controller (PSC), RS-232, DB-9 — Parallax Forums

Parallax Servo Controller (PSC), RS-232, DB-9

devynidevyni Posts: 3
edited 2006-05-10 21:22 in Robotics
Hello,

PSC (Serial) manual says that it supports RS-232. The manual also shows an example with a BOE. I would like to connect PSC to COM port of my PC via DB9 cable. Is that possible? How do I connect DB9 pins to +5, GND, Serial I/O pins on the PSC?

Thank You.

Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-05-10 14:20
    Hello,

    ·· Actually we will have to update that.· It supports the serial protocol but not the RS-232 Specification.· It states right after that it supports TTL Level (0-5V).· COM Ports on computers are ~-12/+12V.· We do have a circuit which would allow you to connect it in this manner, however.· Please see the attachment.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
    PSC 2 PC conns.jpg
    744 x 356 - 44K
  • CJCJ Posts: 470
    edited 2006-05-10 21:22
    I have used that ciurcut and it works quite nice, I decided to add a +5v regulator and 9v battery lead to it on a bit of pcb, makes it very accessible from my pc

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    Who says you have to have knowledge to use it?

    I've killed a fly with my bare mind.
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