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lines changed Original file line number Diff line number Diff line change 1+ /*
2+ Blink
3+
4+ Turns an LED on for one second, then off for one second, repeatedly.
5+
6+ Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO
7+ it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
8+ the correct LED pin independent of which board is used.
9+ If you want to know what pin the on-board LED is connected to on your Arduino
10+ model, check the Technical Specs of your board at:
11+ https://www.arduino.cc/en/Main/Products
12+
13+ modified 8 May 2014
14+ by Scott Fitzgerald
15+ modified 2 Sep 2016
16+ by Arturo Guadalupi
17+ modified 8 Sep 2016
18+ by Colby Newman
19+
20+ This example code is in the public domain.
21+
22+ http://www.arduino.cc/en/Tutorial/Blink
23+ */
24+
25+ // the setup function runs once when you press reset or power the board
26+ void setup () {
27+ // initialize digital pin LED_BUILTIN as an output.
28+ pinMode (LED_BUILTIN, OUTPUT);
29+ }
30+
31+ // the loop function runs over and over again forever
32+ void loop () {
33+ digitalWrite (LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
34+ delay (1000 ); // wait for a second
35+ digitalWrite (LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
36+ delay (1000 ); // wait for a second
37+ }
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