#include void setup() { // initialize digital pin LED_BUILTIN as an output. pinMode(8, OUTPUT); pinMode(12, OUTPUT); pinMode(7, OUTPUT); Serial.begin(9600); } // the loop function runs over and over again forever void loop() { // turn the LED on (HIGH is the voltage level) digitalWrite(12, HIGH); // turn the LED on (HIGH is the voltage level) delay(5000); // wait for a second // turn the LED off by making the voltage LOW digitalWrite(12, LOW); delay(5000); // wait for a second digitalWrite(8, HIGH); // turn the LED on (HIGH is the voltage level) delay(5000); // wait for a second // turn the LED off by making the voltage LOW digitalWrite(8, LOW); delay(10000); // wait for a second digitalWrite(7, HIGH); // turn the LED on (HIGH is the voltage level) delay(5000); // wait for a second // turn the LED off by making the voltage LOW digitalWrite(7, LOW); delay(15000); // wai for a second // turns on all the LED in the circuit digitalWrite(12, HIGH); digitalWrite(8, HIGH); digitalWrite(7, HIGH); delay(5000); digitalWrite(12, LOW); digitalWrite(8, LOW); digitalWrite(7, LOW); delay(20000);tt }