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- int IN3=5; //Entrada 3 conectada al pin 5
- int IN4=4; //Entrada 4 conectada al pin 4
- int ENB=9; //SALIDA DE PWM
- void setup() {
- pinMode(ENB,OUTPUT);
- pinMode(IN3,OUTPUT);
- pinMode(IN4,OUTPUT);
- Serial.begin(9600);
- }
- void loop() {
- if (Serial.available() ){
- int dir = Serial.read();
- analogWrite(ENB,255);
- delay(10);
- if (dir=='1'){
- digitalWrite (IN3, HIGH);
- digitalWrite (IN4, LOW);
- dir=0;
- }
- if (dir=='2'){
- digitalWrite (IN3, LOW);
- digitalWrite (IN4, HIGH);
- dir=0;
- }
- }
- }
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