hey i modified the code in it now works just fine ..thnks . now we have expand the code to control 4 servo motors independently help me out.. thanks for responding.cheers
hey i modified the code
That's supposed to be followed by "and now it looks like:" (where you post your code...).
//here is the code for transmitter :
int potPin = 0;
void setup()
{
//Create Serial Object (9600 Baud)
Serial.begin(9600);
}
void loop()
{
int val = map(analogRead(potPin), 0, 1023, 0, 180);
Serial.write(val);
delay(50);
}
//**************************************
//code for the receiver:
//Include Servo Library
#include <Servo.h>
//Define Pins
int servoPin = 9;
//Create Servo Object
Servo servo;
void setup()
{
//Start Serial
Serial.begin(9600);
//Attaches the Servo to our object
servo.attach(servoPin);
}
void loop()
{
while(Serial.available() == 0);
int data = Serial.read();
int pos = data;
pos = constrain(pos, 0, 180);
servo.write(pos);
}
int val = map(analogRead(potPin), 0, 1023, 0, 9);
Serial.write(val);
Why are you mapping to 0 to 9? The servo is capable of moving more than 10 degrees, isn't it?
Where is the data for the other servos to come from? Are you planning to add more potentiometers?
i just forgot to change while writing the comment ...it was actually from 0 to 180 ..sorry my mistake ..
now how can we send multiple data over serial to control upto 4 servo independently ???..
ashh:
i just forgot to change while writing the comment ...it was actually from 0 to 180 ..sorry my mistake ..
now how can we send multiple data over serial to control upto 4 servo independently ???..
#7 below will help you with your code. Bottom is some multi servo code.
http://arduino.cc/forum/index.php/topic,148850.0.html
//zoomkat 11-22-12 simple delimited ',' string parse
//from serial port input (via serial monitor)
//and print result out serial port
//multi servos added
String readString;
#include <Servo.h>
Servo myservoa, myservob, myservoc, myservod; // create servo object to control a servo
void setup() {
Serial.begin(9600);
//myservoa.writeMicroseconds(1500); //set initial servo position if desired
myservoa.attach(6); //the pin for the servoa control
myservob.attach(7); //the pin for the servob control
myservoc.attach(8); //the pin for the servoc control
myservod.attach(9); //the pin for the servod control
Serial.println("multi-servo-delimit-test-dual-input-11-22-12"); // so I can keep track of what is loaded
}
void loop() {
//expect single strings like 700a, or 1500c, or 2000d,
//or like 30c, or 90a, or 180d,
//or combined like 30c,180b,70a,120d,
if (Serial.available()) {
char c = Serial.read(); //gets one byte from serial buffer
if (c == ',') {
if (readString.length() >1) {
Serial.println(readString); //prints string to serial port out
int n = readString.toInt(); //convert readString into a number
// auto select appropriate value, copied from someone elses code.
if(n >= 500)
{
Serial.print("writing Microseconds: ");
Serial.println(n);
if(readString.indexOf('a') >0) myservoa.writeMicroseconds(n);
if(readString.indexOf('b') >0) myservob.writeMicroseconds(n);
if(readString.indexOf('c') >0) myservoc.writeMicroseconds(n);
if(readString.indexOf('d') >0) myservod.writeMicroseconds(n);
}
else
{
Serial.print("writing Angle: ");
Serial.println(n);
if(readString.indexOf('a') >0) myservoa.write(n);
if(readString.indexOf('b') >0) myservob.write(n);
if(readString.indexOf('c') >0) myservoc.write(n);
if(readString.indexOf('d') >0) myservod.write(n);
}
readString=""; //clears variable for new input
}
}
else {
readString += c; //makes the string readString
}
}
}
hi friend .thanks for posting your code but does not work properly as expected..the servo freaks out and does not know what it's doing!..am posting the code for transmitter please check if it has any issues ..thanks for respond .
//Define Pins
int potPin = 0;
int potPin1 = 1;
int potPin2 = 2;
int potPin3 = 3;
void setup()
{
//Create Serial Object (9600 Baud)
Serial.begin(9600);
}
void loop()
{
int val = map(analogRead(potPin), 0, 1023, 0, 180);
int val1 = map(analogRead(potPin1), 0, 1023, 0,180);
int val2 = map(analogRead(potPin2), 0, 1023, 0,180);
int val3 = map(analogRead(potPin3), 0, 1023, 0,180);
Serial.print(val);
Serial.print("a ,");
Serial.print(val1);
Serial.print("b ,");
Serial.print(val2);
Serial.print("c ,");
Serial.print(val3);
Serial.print("d ,");
delay(50);
}
Please read #7 below and learn how to properly post code using the # in the tool bar. You can go back and edit your previous post.
Interesting note: The single servo code looks almost exactly like that posted by Jeremy Blum in 2011. Tutorial 9 for Arduino: Wireless Communication – JeremyBlum.com
If you took his and cut-n-pasted it would be the right thing to note that used his directions to get your single servo to work. Even using the same components.