int LED1 = 2; int LED2 = 3; int LED3 = 4; int LED4 = 5; int LED5 = 6; int LED6 = 7; int LED7 = 8; int LED8 = 9; int LED9 = 10; int LED10 = 11; int LED11 = 12; int LED12 = 13; int t=30; void setup() { pinMode(LED1, OUTPUT); pinMode(LED2, OUTPUT); pinMode(LED3, OUTPUT); pinMode(LED4, OUTPUT); pinMode(LED5, OUTPUT); pinMode(LED6, OUTPUT); pinMode(LED7, OUTPUT); pinMode(LED8, OUTPUT); pinMode(LED9, OUTPUT); pinMode(LED10, OUTPUT); pinMode(LED11, OUTPUT); pinMode(LED12, OUTPUT); } void loop(){ digitalWrite(LED12, HIGH); delay(t); digitalWrite(LED11, HIGH); delay(t); digitalWrite(LED10, HIGH); delay(t); ...