control 4 servo motor

[z3ngew]

Hello everyone,
I'm designing the software of project that will let me control a robotic arm,
the robotic arm actuators are servo motors, the robotic arm consists of 4 servo motors, My question is
How can i control all of the 4 motors at once?

Thanks in advance,
z3ngew

[temtronic]

You should specify what type of 'servo' motor you're planning to use.
While some consider the Radio Controlled (RC) style servos to be 'servo motors', there are lots of 'servo motors'.

Also please tell us which PIC you're using. Depending on the PIC and overall program you can use internal timers instead of hard coded delays.
As well, do you need access via 'RS-232' to a PC, perhaps an LCD, keypad,etc?

A simple 12F683 8 pin PIC will handle the 'control 4 servos' but something bigger 16F887, 18F46K22 is probably better suited. It all depends on what you reallly need to do.

The more information you supply, the better we can help you.

hth
jay

[z3ngew]

i am using RC servo (both analog and digital),
I'm using PIC18F452, an RS232 is already implemented.

Note: I need to control these servos at the same time(if possible) they will be have according to an inverse kinematics algorithm

Thanks in advance

[asmboy]

ok cheap pulse position servos - got it.
now....
whats the hardware schematic?

and what have you coded to start the ball rolling ?

[z3ngew]

Well, the circuit is a bit complicated, but, about the servo motor part, the 4 servo are connected to b0 => b3, i know i am not using ccp module for pwm, i am willing to drive the servos using software pwm.

Thanks in advance,

[Gabriel]

Just to get it out of the way, and make sure you are not just fishing for code, which by the way, there are several examples on the library, i have to ask:

(i'm paraphrasing the internet)

[PCM programmer]

Use the forum's search page:
http://www.ccsinfo.com/forum/search.php

Do two searches:

1. Search for:

[asmboy]