Data Sheet

53 : circuit 3a
PROJECT 3
Tired of your cat walking all over the
kitchen counter? How about the dog
getting into the garbage? Need a way to
stop your younger sibling from sneaking
into your bedroom? Learn how to protect
against all of these annoyances as you
build a multipurpose motion alarm. The
alarm detects distance and motion using
an ultrasonic distance sensor, and
creates motion using a servo motor.
NEW COMPONENTS INTRODUCED
IN THIS PROJECT
• SERVO MOTOR
• ULTRASONIC DISTANCE SENSOR
NEW CONCEPTS INTRODUCED
IN THIS PROJECT
• PWM DUTY CYCLE
• ARDUINO LIBRARIES
• OBJECTS AND METHODS
• DIGITAL SENSORS
• DATASHEETS
• SERVO MECHANISMS
YOU WILL LEARN
• HOW TO CONTROL A SERVO MOTOR
• HOW TO USE AN ULTRASONIC
DISTANCE SENSOR
• HOW TO MOVE OBJECTS USING
SERVO MECHANISMS
A B C
SERVO MOTORS
DISTANCE SENSOR MOTION ALARM
SIK v4 Book Oct 13.indb 53 10/18/17 10:00 AM