#include "Arduino.h" | |
#define LED_BUILTIN 2 | |
void setup() { | |
pinMode(LED_BUILTIN, OUTPUT); | |
} | |
void loop() { | |
digitalWrite(LED_BUILTIN, HIGH); | |
delay(1000); | |
digitalWrite(LED_BUILTIN, LOW); | |
delay(1000); | |
} | |
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