The Complete Beginners Guide to Arduino - 2021 - SOS Morse Code Signaler

The video tutorial explains how to create an SOS Morse code signal using an Arduino, LED, and Pizzo sounder. It covers the basics of Morse code, setting up the circuit, and programming the Arduino to send the SOS signal. The tutorial also demonstrates the circuit in action and discusses potential applications and scalability of the project.

What is the primary purpose of the SOS signal in Morse code?

• To indicate a friendly greeting

• To request urgent assistance

• To signal the end of a message

• To mark the beginning of a transmission

Which component is used to produce sound in the Morse code circuit?

• Resistor

• Transistor

• Piezo sounder

• LED

Which digital pin is used for the LED in the Morse code circuit?

• Pin 1

• Pin 2

• Pin 3

• Pin 4

What is the frequency of the tone used for the Morse code signal?

• 500 Hertz

• 400 Hertz

• 600 Hertz

• 700 Hertz

Why is a delay necessary between the dots in Morse code?

• To allow the tone to stop

• To prevent overheating

• To save power

• To synchronize with other devices

How long is the delay between each dot in the Morse code signal?

• 100 milliseconds

• 50 milliseconds

• 200 milliseconds

• 150 milliseconds

What change is made to create a dash instead of a dot in the Morse code?

• Increase the frequency

• Decrease the frequency

• Halve the duration

• Double the duration

What is one potential application of the scaled-up SOS device?

• To charge a battery

• To play music

• To light up a room

• To signal aircraft in distress

What could be used to make the SOS signal visible from far away?

• A colored bulb

• A bright LED torch

• A small LED

• A dim flashlight

What is the advantage of using a larger speaker in the SOS device?

• It is more durable

• It is easier to carry

• It consumes less power

• It produces a louder sound