Re: Arduino Mega Kit source example (Program Cod)

hello,ive just buyed Arduino Mega Kit,but ive never worked with it and i want to ask if someone could give me an example program to visualize some data on PC through USB interface...it doesn`t matter what data would be power,current or voltage

thank you !!!

Hi Dimitar.

If you start the arduino IDE, open file->examples->communication->Graph and read the text in that sketch. The sketch also gives code for processing (http://processing.org/) and Max/MSP as programs for on your computer.

Jeroen

Thank you for the previous info. I saw the materials witch you point me but because I'm a beginner I couldn't handle myself.If this doesn't bother you could you give me the program ( code) and its algorithm with witch to visualize the value of Power.

I (we) will help you with problems as they arise but i will not write your code.

...witch to visualize the value of Power.

Power of what? Can you explain what it is that you want to accomplish?

Jeroen

i want to visualize on my pc connected to the board with usb interface voltage from some analog input

Ok. If you try what i explained in reply 1 what is the first problem you have?

Jeroen

i can`t find the source code(program) to visualize voltage

It’s between

/* Processing code for this example

and

xPos++;
}
}
}

*/

In the arduino sketch i pointed you to.

You should copy/paste that to the processing program on the pc and remove what is highlighted below.

/* Processing code for this example




// increment the horizontal position:
xPos++;
}
}
}

*/

Probably a better advice would be to experiment with some (all) of the examples (like digital->blink) before you do a ‘full project’ to learn some programming/syntax. While it seems that that doesn’t help you with your goal it is actually vitally important.

Jeroen

is this the program(cod) I need to visiolize the voltage

/* Processing code for this example

// Graphing sketch

// This program takes ASCII-encoded strings
// from the serial port at 9600 baud and graphs them. It expects values in the
// range 0 to 1023, followed by a newline, or newline and carriage return

// Created 20 Apr 2005
// Updated 18 Jan 2008
// by Tom Igoe

import processing.serial.*;

Serial myPort; // The serial port
int xPos = 1; // horizontal position of the graph

void setup () {
// set the window size:
size(400, 300);

// List all the available serial ports
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my Arduino, so I open Serial.list()[0].
// Open whatever port is the one you’re using.
myPort = new Serial(this, Serial.list()[0], 9600);
// don’t generate a serialEvent() unless you get a newline character:
myPort.bufferUntil(’\n’);
// set inital background:
background(0);
}
void draw () {
// everything happens in the serialEvent()
}

void serialEvent (Serial myPort) {
// get the ASCII string:
String inString = myPort.readStringUntil(’\n’);

if (inString != null) {
// trim off any whitespace:
inString = trim(inString);
// convert to an int and map to the screen height:
float inByte = float(inString);
inByte = map(inByte, 0, 1023, 0, height);

// draw the line:
stroke(127,34,255);
line(xPos, height, xPos, height - inByte);

// at the edge of the screen, go back to the beginning:
if (xPos >= width) {
xPos = 0;
background(0);
}
else {
// increment the horizontal position:
xPos++;
}
}
}

*/

Yep. That's the code to paste in processing on your pc. Remember to remove the lines that are highlighted in reply 7.

Jeroen

edit: If you post code please use the #-button.

is this the program(cod) ?

// Graphing sketch

// This program takes ASCII-encoded strings // from the serial port at 9600 baud and graphs them. It expects values in the // range 0 to 1023, followed by a newline, or newline and carriage return

// Created 20 Apr 2005 // Updated 18 Jan 2008 // by Tom Igoe

import processing.serial.*;

Serial myPort; // The serial port int xPos = 1; // horizontal position of the graph

void setup () { // set the window size: size(400, 300);

// List all the available serial ports println(Serial.list()); // I know that the first port in the serial list on my mac // is always my Arduino, so I open Serial.list()[0]. // Open whatever port is the one you're using. myPort = new Serial(this, Serial.list()[0], 9600); // don't generate a serialEvent() unless you get a newline character: myPort.bufferUntil('\n'); // set inital background: background(0); } void draw () { // everything happens in the serialEvent() }

void serialEvent (Serial myPort) { // get the ASCII string: String inString = myPort.readStringUntil('\n');

if (inString != null) { // trim off any whitespace: inString = trim(inString); // convert to an int and map to the screen height: float inByte = float(inString); inByte = map(inByte, 0, 1023, 0, height);

// draw the line: stroke(127,34,255); line(xPos, height, xPos, height - inByte);

// at the edge of the screen, go back to the beginning: if (xPos >= width) { xPos = 0; background(0); } else { // increment the horizontal position: xPos++; } } }

Have you tried? What did it do? You actually have to do something yourself.

Jeroen

I haven't got any knowledge of this program but I've been assign a task to visualize the voltage. Can I use a ready code from somewhere, coz I can't write it by myself.

If you spend a couple of hours reading the examples in the arduino IDE and processing IDE you will have the knowledge to do what you want by copy/pasting.

If you don’t want to do that then the simplest way of ‘visualize the voltage’ will probably a multimeter.

Jeroen