ArduinoUno Osiloskop Nasıl Yapılır? ~ İsmet TEKİN

İnternette gezinirken bulduğum basit bir osilaskop yöntemi...

1- "processing-3.3.5-windows32" Bu programı indiriyoruz. Arduino İDE gibi çalışan ufak bir program.

2- Aşağıdaki programı ARDUİNO İDE ile ARDUİNO muza yüklüyoruz.

3- Aşağıdaki diğer kodu ise indirdiğimiz programa kopyalayarak çalıştırıyoruz.

" Arduino yüklenecek
#define ANALOG_IN 0

void setup() {
Serial.begin(9600);
//Serial.begin(115200);
}

void loop() {
int val = analogRead(ANALOG_IN);
Serial.write( 0xff );
Serial.write( (val >> 8) & 0xff );
Serial.write( val & 0xff );
}

---------------------------------------

" İndirdiğimiz programa yüklenecek

/*
	* Oscilloscope
	* Gives a visual rendering of analog pin 0 in realtime.
	*
	* This project is part of Accrochages
	* See http://accrochages.drone.ws
	*
	* (c) 2008 Sofian Audry (info@sofianaudry.com)
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/
	import processing.serial.*;

	Serial port; // Create object from Serial class
	int val; // Data received from the serial port
	int[] values;
	float zoom;

	void setup()
	{
	size(1280, 480);
	// Open the port that the board is connected to and use the same speed (9600 bps)
	port = new Serial(this, Serial.list()[0], 9600);
	values = new int[width];
	zoom = 1.0f;
	smooth();
	}

	int getY(int val) {
	return (int)(height - val / 1023.0f * (height - 1));
	}

	int getValue() {
	int value = -1;
	while (port.available() >= 3) {
	if (port.read() == 0xff) {
	value = (port.read() << 8) \| (port.read());
	}
	}
	return value;
	}

	void pushValue(int value) {
	for (int i=0; i<width-1; i++)
	values[i] = values[i+1];
	values[width-1] = value;
	}

	void drawLines() {
	stroke(255);

	int displayWidth = (int) (width / zoom);

	int k = values.length - displayWidth;

	int x0 = 0;
	int y0 = getY(values[k]);
	for (int i=1; i<displayWidth; i++) {
	k++;
	int x1 = (int) (i * (width-1) / (displayWidth-1));
	int y1 = getY(values[k]);
	line(x0, y0, x1, y1);
	x0 = x1;
	y0 = y1;
	}
	}

	void drawGrid() {
	stroke(255, 0, 0);
	line(0, height/2, width, height/2);
	}

	void keyReleased() {
	switch (key) {
	case '+':
	zoom *= 2.0f;
	println(zoom);
	if ( (int) (width / zoom) <= 1 )
	zoom /= 2.0f;
	break;
	case '-':
	zoom /= 2.0f;
	if (zoom < 1.0f)
	zoom *= 2.0f;
	break;
	}
	}

	void draw()
	{
	background(0);
	drawGrid();
	val = getValue();
	if (val != -1) {
	pushValue(val);
	}
	drawLines();
	}