servomotor (arduino)

You only mention one sensor but you have it monitoring for someone within 50cm and also monitoring the servos, are you using 2 sensors ?

or is the sensor monitoring for people close to it, If detected it starts the servos (4 with their own actions), but if the person / object moves out of range of the sensor the servos will stop what ever there doing and wait for a new presence to be detected by the sensor

the ultrasonic sensor (and servos) are attached to the wall. when a person approaches 50 cm or less, servos start in march.

Yes, the sensor is monitoring for people close to it, If detected it starts the servos (4 with their own actions), but if the person moves out of range of the sensor the servos will stop what ever there doing and wait for a new presence to be detected by the sensor.

Le 6 oct. 2014 à 20:54, peteroakes <messages@element14.com> a écrit :

You only mention one sensor but you have it monitoring for someone within 50cm and also monitoring the servos, are you using 2 sensors ?

 

or is the sensor monitoring for people close to it, If detected it starts the servos (4 with their own actions), but if the person / object moves out of range of the sensor the servos will stop what ever there doing and wait for a new presence to be detected by the sensor

#define echoPin 12

#define trigPin 13

void setup() {

  Serial.begin (9600);

  pinMode(trigPin, OUTPUT);

  pinMode(echoPin, INPUT);

}

void loop() {

start:

  long duration, distance;

  digitalWrite(trigPin, LOW);  // Added this line

  delayMicroseconds(2); // Added this line

  digitalWrite(trigPin, HIGH);

//  delayMicroseconds(1000); - Removed this line

  delayMicroseconds(10); // Added this line

  digitalWrite(trigPin, LOW);

  duration = pulseIn(echoPin, HIGH);

  distance = (duration/2) / 29.1;

  if (distance < 4) {  // Change value 4 to change trigger distance

    goto start;

}

  if (distance >= 200 || distance <= 0){

    Serial.println("Out of range");

  }

  else {

    Serial.print(distance);

    Serial.println(" cm");

  }

  delay(100);

// Put your code from the void loop here

}

The above code might work for you. It is an adapted version of something I found on an instruct able. Read the comments for where to change the distance (I left it at default). There is also a place for you to put your code. Here you can put the contents of the void loop section of your code. Please bear in mind that it will check for a person every time it loops and in doing so way interrupt either part way through your programming or after the person leaves. It will also create a short delay after each check, but this can be removed by commenting out the delay line at the bottom of the code. The code will also send data down a serial connection at 9600 baud as to the distance being measured for debugging. Finally the wiring is as follows: echo to pin 12 trig to pin 13 gnd to gnd and vcc to 5v. If you need more help then post.

Thousand thank you Kidiccurus.

But where the lines which controls the movement servo for each?

Le 7 oct. 2014 à 20:55, kidiccurus <messages@element14.com> a écrit :

 

element14

servomotor (arduino)

réponse de Samuel Doye dans Arduino - Afficher la discussion complète

The above code might work for you. It is an adapted version of something I found on an instruct able. Read the comments for where to change the distance (I left it at default). There is also a place for you to put your code. Here you can put the contents of the void loop section of your code. Please bear in mind that it will check for a person every time it loops and in doing so way interrupt either part way through your programming or after the person leaves. It will also create a short delay after each check, but this can be removed by commenting out the delay line at the bottom of the code. The code will also send data down a serial connection at 9600 baud as to the distance being measured for debugging. Finally the wiring is as follows: echo to pin 12 trig to pin 13 gnd to gnd and vcc to 5v. If you need more help then post.

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Thousand thank you Kidiccurus.

But where the lines which controls the movement servo for each?

Le 7 oct. 2014 à 20:55, kidiccurus <messages@element14.com> a écrit :

 

element14

servomotor (arduino)

réponse de Samuel Doye dans Arduino - Afficher la discussion complète

The above code might work for you. It is an adapted version of something I found on an instruct able. Read the comments for where to change the distance (I left it at default). There is also a place for you to put your code. Here you can put the contents of the void loop section of your code. Please bear in mind that it will check for a person every time it loops and in doing so way interrupt either part way through your programming or after the person leaves. It will also create a short delay after each check, but this can be removed by commenting out the delay line at the bottom of the code. The code will also send data down a serial connection at 9600 baud as to the distance being measured for debugging. Finally the wiring is as follows: echo to pin 12 trig to pin 13 gnd to gnd and vcc to 5v. If you need more help then post.

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Premier Farnell plc

150 Armley Road

Leeds

LS12 2QQ

Telephone +44 (0) 870 129 8608

Fax +44 (0) 870 129 8610

Registered in England

Company Number 876412

Registered Office: Farnell House, Forge Lane, Leeds LS12 2NE

 

I did not know where and when you wanted the servos to move. If you give me a list of positions in degrees and times for each servo then I will code it in for you, or if you have existing code I can modify it for you. The only thing to note is that it should start and end in the same place. Also what servos are you using, in case I need to look up a data sheet.

Thank you for your attention.

Servo movement may be random but different:

eg 20-160 °, 30-150 °, 40-140 ° continuous return at different speeds.

As long as the person is at least 50 cm from the wall, servos operate and stop when the person leaves the wall.

If necessary, I will modify the value of angles.

For now that I have the servos are Futaba S3003 and Tower Pro MG995

Le 8 oct. 2014 à 21:35, kidiccurus <messages@element14.com> a écrit :

 

element14

servomotor (arduino)

réponse de Samuel Doye dans Arduino - Afficher la discussion complète

I did not know where and when you wanted the servos to move. If you give me a list of positions in degrees and times for each servo then I will code it in for you, or if you have existing code I can modify it for you. The only thing to note is that it should start and end in the same place. Also what servos are you using, in case I need to look up a data sheet.

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Commencer une nouvelle conversation dans Arduino sur element14

**************************Disclaimer**************************

The contents of this e-mail and any file transmitted with it are confidential and intended solely for the individual or entity to whom they are addressed.  The content may also contain legal, professional or other privileged information. If you received this e-mail in error, please destroy it immediately.  You should not copy or use it for any purpose nor disclose its contents to any other person. The views stated herein do not necessarily represent the view of the Company.

Please ensure you have adequate virus protection before you open or detach any documents from this transmission. The Company does not accept any liability for  viruses.

Premier Farnell plc

150 Armley Road

Leeds

LS12 2QQ

Telephone +44 (0) 870 129 8608

Fax +44 (0) 870 129 8610

Registered in England

Company Number 876412

Registered Office: Farnell House, Forge Lane, Leeds LS12 2NE

 

#define echoPin 12
#define trigPin 13
#include <Servo.h> 
Servo towerpro;
Servo futaba;
void setup() {
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  
  towerpro.attach(9);
  futaba.attach(10);
  towerpro.write(90);
  futaba.write(30);
  randomSeed(analogRead(0));
}
 
void loop() {
start:
  long duration, distance;
  digitalWrite(trigPin, LOW);  // Added this line
  delayMicroseconds(2); // Added this line
  digitalWrite(trigPin, HIGH);
//  delayMicroseconds(1000); - Removed this line
  delayMicroseconds(10); // Added this line
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  if (distance < 4) {  // Change value 4 to change trigger distance
    goto start;
}
 
  if (distance >= 200 || distance <= 0){
    Serial.println("Out of range");
  }
  else {
    Serial.print(distance);
    Serial.println(" cm");
  }
  delay(100);
  towerpro.write(random(0,180));
  futaba.write(random(0,60));
  delay(random(250,2000));
}

#define echoPin 12
#define trigPin 13
#include <Servo.h> 
Servo towerpro;
Servo futaba;
void setup() {
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  
  towerpro.attach(9);
  futaba.attach(10);
  towerpro.write(90);
  futaba.write(30);
  randomSeed(analogRead(0));
}

void loop() {
start:
  long duration, distance;
  digitalWrite(trigPin, LOW);  // Added this line
  delayMicroseconds(2); // Added this line
  digitalWrite(trigPin, HIGH);
//  delayMicroseconds(1000); - Removed this line
  delayMicroseconds(10); // Added this line
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  if (distance < 4) {  // Change value 4 to change trigger distance
    goto start;
}

  if (distance >= 200 || distance <= 0){
    Serial.println("Out of range");
  }
  else {
    Serial.print(distance);
    Serial.println(" cm");
  }
  delay(100);
  towerpro.write(random(0,180));
  futaba.write(random(0,60));
  delay(random(250,2000));
}

Try this, attach the futaba servo to pin 10 and the tower pro to pin 9. Make sure analogue pin 0 is NOT connected to anything, it is required to set up the random number generator. If you need the code modifying or it doesn't work, please post.

Wonderful !

For the other two servo I place on pin 7 and 8 or 11 and 12 ?

For supply of servos I plug how?

Again thank you.

I Would suggest you use a separate 5v for the servo power, the arduino regulator will not be happy driving 4 servos

Connect the servo +v pins to the power supply

connect the ground (0v) of the servo supply to the gnd pin on the arduino,

connect the 0v of the servo supply to all the servos

the pwm pins are connected as indicated above

THat at should get you running nice and reliably

Oh, sorry, I made a mistake, I thought you only had 2 servos. Please just tell me how many of each type of servo you have so I can alter the progran accordingly. I agree that you should be using an external PSU for that many servos. Also, a quick request, when we get this working could you please post a video, I really want to see this cool piece of art that you have made.

Thank You.

I have either a battery of 4 x 1.5 V or an AC / DC power adapter, model TSL-0901, output 9V DC 1000mA.
Which is best ?

For now I have 2 Tower Pro servos and 2 Futaba servos (Do you know larger models at a reasonable price?).
For now I'm trying to solve the practical and technical problem. I attack the artistic part in January. Once the installation is finished I will post a photo or video (how?).

#define echoPin 12 
#define trigPin 13 
#include <Servo.h>  
Servo towerpro; 
Servo futaba;
Servo towerpro2; 
Servo futaba2; 
void setup() { 
  Serial.begin (9600); 
  pinMode(trigPin, OUTPUT); 
  pinMode(echoPin, INPUT); 
   
  towerpro.attach(9); 
  futaba.attach(11);
  towerpro2.attach(10); 
  futaba2.attach(12);  
  towerpro.write(90); 
  futaba.write(30);
  towerpro2.write(90); 
  futaba2.write(30);  
  randomSeed(analogRead(0)); 
} 
 
void loop() { 
start: 
  long duration, distance; 
  digitalWrite(trigPin, LOW);  // Added this line 
  delayMicroseconds(2); // Added this line 
  digitalWrite(trigPin, HIGH); 
//  delayMicroseconds(1000); - Removed this line 
  delayMicroseconds(10); // Added this line 
  digitalWrite(trigPin, LOW); 
  duration = pulseIn(echoPin, HIGH); 
  distance = (duration/2) / 29.1; 
  if (distance < 20) {  // Change value 20 to change trigger distance 
    goto start; 
} 
 
  if (distance >= 200 || distance <= 0){ 
    Serial.println("Out of range"); 
  } 
  else { 
    Serial.print(distance); 
    Serial.println(" cm"); 
  } 
  delay(100); 
  towerpro.write(random(0,180)); 
  futaba.write(random(0,60));
  towerpro2.write(random(0,180)); 
  futaba2.write(random(0,60));  
  delay(random(250,2000)); 
}