Re: Choosing RC Servo Controller

On Jul 15, 8:24 am, rgagarr...@xxxxxxxxx wrote:
Hi,
I hope this is the correct group for my enquiry.

I need to integrate an RC servo motor into my project and I'm trying
to find the best way to control it. I'm unable to generate the PWM
control signal myself so I'm need to buy a servo controller. I don't
have any serial comms available, however, only digital IO lines. The
only servo controllers I've found so far are controlled via 232 (or
USB) - does anyone know of any controllers that I could control with
digital IO? For example, one pin to turn movement on/off, one pin to
set direction. Something simple like that. I've got sensors that
provide position feedback so I know when to stop the movement (but I
don't necessarily know exactly where that position will be).

Any help would be much appreciated!

Thanks,
Rob

It's pretty easy to generate PPM (not PWM) signals to control a hobby
servo with just a 555 & a couple of resistors & capacitors. A
potentiometer can be used to vary the pulse width. It's also pretty
easy to do with any microcontroller. What kind of "digital IO" do you
have in mind?

Google "serial", "servo", & "controller" for a huge selection of OTS
products.

JM
.

Relevant Pages

  • Re: Piper Altimatic II autopilots - some can be made to work!
    ... Both the pitch and roll servo motors have a bevel gear which ... The control cables push / pull the servo motors much like a throttle ... I flew an ILS using only the autopilot controls for ...
    (rec.aviation.owning)
  • Re: Piper Altimatic II autopilots - some can be made to work!
    ... Both the pitch and roll servo motors have a bevel gear which ... force applied to the yoke in either pitch or roll, ... The control cables push / pull the servo motors much like a throttle ...
    (rec.aviation.owning)
  • Re: What to do with a Dead Camcorder?
    ... servo motors, audio circuitry etc... ... I canabilize old camcorders often. ... I find the zoom switch priceless for building homemade security camera ... camcorder housing wired to the zoom and iris gain control you can have ...
    (sci.electronics.repair)
  • Re: Servo Control - C#?
    ... USB-to-serial dongles appear to your PC (or laptop) as a serial port. ... A serial servo controller ... Read up on servo control. ...
    (comp.robotics.misc)
  • Re: What to do with a Dead Camcorder?
    ... servo motors, audio circuitry etc... ... the audio preamp circuit is usually a separate circuit board so the ... I find the zoom switch priceless for building homemade security camera ... camcorder housing wired to the zoom and iris gain control you can have ...
    (sci.electronics.repair)