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ARDUINO TUTORIAL - 3 | FOR STATEMENT - Duration: 3:40.
HELLO FRIENDS
ITS NAMAN TANWAR HERE AND YOU ARE WATCHING THE ELECTRIC GUY
AND THIS IS OUR THIRD VIDEO OF ARDUINO TUTORIALS
AND IN THIS VIDEO WE WILL MOVE ONE MORE STEP FURTHER
AND LEARN WHAT IS 'FOR' STATEMENT
BEFORE UNDERSTANDING HOW TO USE 'FOR' STATEMENT
LETS FIRST UNDERSTAND WHEN TO USE FOR STATMENT
THIS CAN BE MORE EASILY UNDERSTOOD BY AN EXAMPLE
IF YOU WANT TO CONTROL A SERVO
IN A WAY BY WHICH
WHEN SERVO REACHES TO 180 DEGREE
IT AUTOMATICALLY CHANGES ITS POSITION TO 0 DEGREE
AND THEN AGAIN TO 180 DEGREE
FOR THIS TO HAPPEN WE HAVE TO GENERATE A PWM SIGNAL
OF 180 DEGREE FOR SOME TIME
AND THEN AGAIN PWM SIGNAL FOR 0 DEGREE
FOR SOME TIME
NOW YOU WILL THINK
TO PUT THE CODE OF BOTH 180 DEGREE
AND 0 DEGREE POSITION
IN SAME void loop()
BUT IN THAT CASE
PIN WILL BE HIGH FOR 3000 MICROSECONDS
AND THEN LOW FOR 6 MILISECONDS
AND THEN AGAIN HIGH FOR
A DIFFERENT MICROSECONDS
AND LOW FOR 6 MILISECONDS
THIS DIFFERENCE OF MICROSECONDS IN BOTH THE HIGH STATE
CAN CONFUSE THE SERVO
SO WE HAVE TO CREATE A PWM SIGNAL
OF SAME TYPE
FOR THE TIME TILL THE SERVO REACHES TO ITS POSITION
NOW LETS TAKE A LOOK AT CORRECT ARDUINO CODE
IN THE FIRST LINE OF CODE
I HAVE DECLARED ANGLE AS INTEGER
AND THEN IN void loop() SECTION
I HAVE USED FOR STATMENT
IN THE FIRST FOR STATEMENT I HAVE ASSIGNED
INTEGER ANGLE A VALUE OF 0
AND ALSO SPECIFIED TO RUN THE CODE IN THE CURLY BRACKET
TILL ANGLE IS SMALLER THAN OR EQUAL TO 180 DEGREE
EVERY TIME IT RUNS THE CODE IN THE BRACKET
IT WILL INCREMENT THE ANGLE BY ONE
I HAVE USED THE VALUE 180 DEGREE BECAUSE
TO MOVE THE SERVO 180 DEGREE 180 CYCLES OF PWM SIGNAL IS REQUIRED
NOW IN THE 2ND FOR STATMENT
TO MOVE THE SERVO TO 0 DEGREE
REVERSE OF 1ST STATEMENT IS WRITTEN
WHICH MEANS INTEGER angle = 180 degree
AND THIS CODE IN CURLY BRACKETS WILL RUN
TILL THE ANGLE IS GREATER THAN OR EQUAL TO 0
EVERY TIME IT WILL RUN IT WILL DEDUCT 1 FROM ANGLE
I HAVE ALREADY TALKED ABOUT THE CODE WHICH IS WRITTEN IN BRACKETS
IN MY PREVIOUS VIDEO
THE LINK IS IN THE DESCRIPTION
AFTER UPLOADING THE CODE
YOU CAN SEE THAT
WHEN THE SERVO REACHES 180 DEGREE
IT WILL AUTOMATICALLY CHANGES ITS POSITION TO 0 DEGREE
YOU CAN ALSO IMPLEMENT THIS FOR
STATEMENT TO CHANGE THE BRIGHTNESS OF LED
I HOPE THAT YOU LEARNED SOMETHING NEW FROM THIS VIDEO
PLEASE LIKE, COMMENT AND SHARE THIS VIDEO
AND IF YOU WANT TO STAY TUNED WITH MY UPCOMMING VIDEOS
PLEASE SUBSCRIBE
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