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« on: October 13, 2012, 08:30:51 pm » |
hice este programa que les pegare al ultimo del post. mi problema es que a la hora de correrlo solo me funciona un sensor y el otro no, y cheque que los sensores funcionaran por separado y si lo hacen, pero con este programa que hice nadamas sirve uno, me podrian ayudar en identificar la solucion, o que le puedo modificar a mi programa para que me funcionen los dos sensores ultrasonicos a la vez. Estoy casi seguro que el problema esta en el programa, ojala y me puedan ayudar,gracia este es el programa: int led1=13; int led2=8; int pingPin = 7; int pingPin2 = 6; int value = 0; // Valor del pulsador int value2 =0;
void setup() { // initialize serial communication: Serial.begin(9600); }
void loop() { // establish variables for duration of the ping, // and the distance result in inches and centimeters: long duration,duration2, cm,cm2;
// The PING))) is triggered by a HIGH pulse of 2 or more microseconds. // Give a short LOW pulse beforehand to ensure a clean HIGH pulse: pinMode(pingPin, OUTPUT); digitalWrite(pingPin, LOW); delayMicroseconds(2); digitalWrite(pingPin, HIGH); delayMicroseconds(5); digitalWrite(pingPin, LOW); // The same pin is used to read the signal from the PING))): a HIGH // pulse whose duration is the time (in microseconds) from the sending // of the ping to the reception of its echo off of an object. pinMode(pingPin, INPUT); duration = pulseIn(pingPin, HIGH);
pinMode(pingPin2, OUTPUT); digitalWrite(pingPin2, LOW); delayMicroseconds(2); digitalWrite(pingPin2, HIGH); delayMicroseconds(5); digitalWrite(pingPin2, LOW); // The same pin is used to read the signal from the PING))): a HIGH // pulse whose duration is the time (in microseconds) from the sending // of the ping to the reception of its echo off of an object. pinMode(pingPin2, INPUT); duration2 = pulseIn(pingPin2, HIGH);
// convert the time into a distance
cm = microsecondsToCentimeters(duration); cm2 = microsecondsToCentimeters(duration2); value = duration / 29 / 2; value2 = duration2 / 29 / 2; pinMode(led1, OUTPUT); pinMode(led2, OUTPUT);
Serial.print(cm); Serial.print("cm"); Serial.println(); delay(100);
Serial.print(cm2); Serial.print("cm2"); Serial.println(); delay(100);
if ( cm <=20 ) {digitalWrite (led1,HIGH);} else {digitalWrite (led2,LOW);}
if ( value2 <= 20) {digitalWrite (led2,HIGH); } else {digitalWrite (led2,LOW);}
}
long microsecondsToCentimeters(long microseconds) { // The speed of sound is 340 m/s or 29 microseconds per centimeter. // The ping travels out and back, so to find the distance of the // object we take half of the distance travelled. return microseconds / 29 / 2; }
les agradeceria mucho sus respuestas.
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