Before You Begin; Getting Started - Parallax 28823 User Manual

Features

Each Servo is individually controllable: Position, rate, offset, and post delay.
 Speed Control. Each servo may have any of 63 run-time changeable rates.
 128 Frames supported though most sequences require far fewer frames.

Before You Begin

The processor used on the PSCusb requires 5 VDC which is supplied by the USB port. Servos
require far more power than the USB port can supply. Therefore you must use a separate
power supply for your servos. In general, servos require 4-7.5 VDC. Be sure that the servo
power source can supply ample current at the proper voltage and will not damage the
servos.

Getting Started

Locate and remove the PSCusb from its protective anti-static bag. It should closely resemble the image
shown in Figure 1.
Mount the PSCusb using 4-40 screws (or equivalent). Ensure that none of the connections on the pcb
bottom are inadvertently shorted.
2
Figure 1: PSCusb – Rev B and mounting-hole detail
Parallax, Inc. • Parallax Servo Controller – USB Rev B ver 3.4 (#28823) • 8/2006