Keyestudio ARDUINO maker learning kit, Manual

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17
Project 18: Tilt switch
Project 19: Magical Light Cup
Project 20: Vibration switch
Project 21: Sound-control light
Project 22: Voltmeter
Project 23: 74HC595
Project 24: 1-digit LED segment display
Project 25: 4-digit LED segment display
Project 26: 8*8 LED matrix
Project 27: 1602 LCD
Project 28: 9g servo control
Project 29: Rotary encoder
Project 30: 5V Relay
Project 31: DS1302 clock
Project 32: Mos tube driving motor
Project 33: 4N35
Project 34: NE555 timer
4. Project details
Project 1: Hello World
Introduction
As for starters, we will begin with something simple. In this project, you only need an Arduino
and a USB cable to start the "Hello World!" experiment. This is a communication test of your
Arduino and PC, also a primer project for you to have your first try of the Arduino world!
Hardware required
Arduino board *1
USB cable *1
Sample program
After installing driver for Arduino, let's open Arduino software and compile code that enables
Arduino to print "Hello World!" under your instruction. Of course, you can compile code for
Arduino to continuously echo "Hello World!" without instruction. A simple If () statement will do
the instruction trick. With the onboard LED connected to pin 13, we can instruct the LED to blink
first when Arduino gets an instruction and then print "Hello World!”.