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Let’s Get Started..
Blinky is the “Hello World” of Physical Computing
How do we implement this?
Digital Output
Three functions to know…
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pinMode(pin, INPUT/OUTPUT);
ex: pinMode(13, OUTPUT);
// NOTE: -> functions are CASE-sensitive
digitalWrite(pin, HIGH/LOW);
ex: digitalWrite(13, HIGH);
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Note: The block above corresponds to digitalWrite(pin, HIGH); inserted into loop(). pinMode(pin, OUTPUT); will be inserted into setup() automatically. |
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delay(time_ms);
ex: delay(2500); // delay of 2.5 sec. |
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https://www.arduino.cc/en/Reference
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Type (instead of copy-pasting, if you are new to C/C++)
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this
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code,
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click “Upload” and observe the built-in
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LED.
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You have
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just
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completed
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your
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first
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Arduino
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program!
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// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
} |
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|  Image Added
Instead of using  Image Addedit is fine to use  Image Addedfor pin 13. |