User`s manual

ROBOT . HEAD to TOE

Product User’s Manual – SC08A

1. INTRODUCTION AND OVERVIEW

SC08A offers reliable yet user friendly RC Servo motor controller to hobbyist and students.

Different with SC16A, SC08A is designed to control 8 independent standard RC (Remote

Control) servo motors simultaneously in a single board. Each servo signal pin is able to

generate servo pulses from 0.5 ms to 2.5 ms, which is greater than the range of most servos,

further allows for servos to operate 180 degrees. SC08A comes with small size and different

protocol compare to SC16A.Through serial communication, SC08A can be daisy chain in 2

boards to offer independent control over 16 RC servo motors simultaneously. The host of

SC08A can either be a PC desktop/Laptop with USB to serial(UART) converter, or

microcontroller with UART interface. UART interface present a flexible, fast and easy to use

feature.

It is designed with capabilities and features of:

• 8 channels: Servo driven independently

• Extendable to 16 Channels: Two controller linked together to drive 16 servos

• Optional Position Reporting: User may request position of an individual servo.

• Servo Activation for each channel: User may deactivate or activate any channel of

servo.

• Independent Starting Position Command for each channel: User may set the

initial position of any channel at the next start-up.

• Optional Servo Ramping: Choose one of 100 ramp rate for each servo.

• Resolution: 8000 steps = 0.25us.

• UART: 9600 baud rate

• Servo pulse range: 0.5ms to 2.5ms.

This document explains the method to use SC08A.