byte Speed = 0; // Intialize Varaible for the speed of the motor (0-255); int IN1 = 9; // 왼쪽 줄이기 int IN2 = 8; // 왼쪽 늘리기 int IN3 = 7; //오른쪽 줄이기 int IN4 = 6; //오른쪽 늘리기 void setup() { pinMode(IN1, OUTPUT); pinMode(IN2, OUTPUT); pinMode(IN3, OUTPUT); pinMode(IN4, OUTPUT); } void loop() { // Extend Actuator at Full Speed Speed = 255; analogWrite(IN1, 0); analogWrite(IN2, Speed); analogWrite(IN3, 0); ..