Wind Tunnel Experiments - Part 2 - Aerodynamics

[@marouaneessahraoui6817]

From morocco this is great bro, thank you so much

[@fyndssdev]

haha same, love from morocco!

[@electronology4665]

Watch how I made the Wind Tunnel !
In Part 1: ua-cam.com/video/GrsXV_zD_Do/v-deo.html

[@sikkandar]

hello, your video is very helpful! can you tell me how you got the graph on the processing software. did you code in the arduino program?

[@paulabadie5897]

Fine job !

[@mipoar7771]

Great content! What motor and type of blade did you use?? Thanks

[@AnshAtulVirani]

Can you send the code of the graph you were plotting and also the list of electronics used for the same?

[@abdulrahmanmostafa5186]

You are amazing. keep going

[@paulhueber6718]

Whao very interesting 😳

[@electronology4665]

Ah yes indeed !

[@marouaneessahraoui6817]

please can u give me the name of that software u use in simulation?

[@electronology4665]

If you are talking about the software showing the graph, it is called Processing which you can download here:
processing.org/download/
Here is the code I used: (you need to connect the arduino to the computer and Processing will collect that data)
//Modified for a wind tunnel by Electronology
// 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 24 Nov 2015
// by Tom Igoe
// This example code is in the public domain.
import processing.serial.*;
Serial myPort; // The serial port
int xPos = 1; // horizontal position of the graph
float inByte = 0;
void setup () {
// set the window size:
size(1400, 800);
// List all the available serial ports
println(Serial.list());
// 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('
');
// set initial background:
background(0);
}
void draw () {
// 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++;
}
}
void serialEvent (Serial myPort) {
// get the ASCII string:
String inString = myPort.readStringUntil('
');
if (inString != null) {
// trim off any whitespace:
inString = trim(inString);
// convert to an int and map to the screen height:
inByte = float(inString);
println(inByte);
inByte = map(inByte, 0, 60, 0, height);
}
}

[@marouaneessahraoui6817]

@@electronology4665 Thank youu Sooo much broo, Merciiii

[@alideniz3608]

@@electronology4665 Thank you so much for the video. I had some problems with graphics and I need your help. When I run the software I get the following error and a blank non-working black graphical screen appears: "map(NaN, 0, 60, 800) called, which returns NaN (not a number)". Can you help me to overcome this problem? Thank you.

[@electronology4665]

That probably means the arduino isn't sending the correct data, for exemple, if it's sending text.
Try printing the data from the arduino IDE and making sure it's numbers

[@alideniz3608]

@@electronology4665 Thank you.