14 Starter Kit: Tweak the Logo

Use serial communication and a graphical interface called Processing to tweak the Arduino logo.
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[@jeffbowyer4576]

On the Arduino side, with delay(1), readings from the potentiometer on A0 never changed.
With delay(100), this project worked properly.

[@prvashisht]

Thank you. They need to update their tutorials and links. I also struggled with finding the capacitive sensor library.

[@logester731]

You just saved me hours of pain, thanks.

[@mr.billbradley4510]

I could listen to her voice for hours.

[@shalmai5311]

Nice

[@interactivist]

When I try this projects I get random characters in the serial monitor, instead of numbers. I understand it has something to do with baud, but I don't understand how to fix it.

[@NepetaHouse]

I'm not 100% sure how this works, but here's what I found: If you have a Serial.write, it is writing in binary data so will show unexpected characters. If you replace it with the Serial.println, then you will get the value of your potentiometer.
Note that, if you do this, it appears that the port will be "busy", so Processing will throw an error stating "Error opening serial port [YOUR PORT]: Port busy". Seems you can do write OR print, but not both.

[@filippoisotta8562]

This is because the Arduino's serial monitor expects only ASCII while you're using Serial.write() wich sends bytes from 0 to 255. So Processing understands it but the serial monitor tries to intepret it showing random characters. Try Serial.println() to see it.

[@jaswinsarts5889]

Where do I get the kit from?

[@NepetaHouse]

You can get it from the Arduino store: store.arduino.cc/genuino-starter-kit Many retailers (online and off) also sell it.

[@mrcsx1]

@Arduino Hi, thanks for this video. I'm having some problems with this project. I did the setup exactly as mentioned in the video (after trying on my own with the textbook). I have copied the code from Arduino IDE to the processing IDE. But I'm having an error and the logo won't show up.
This is the error:
Error opening serial port /dev/cu.AvenzoAV624-BluetoothSe: Port busy
I don't know why is asking for that port, don't know what the Bluetooth port has to do with all this. Could you please help me solving this.
Thank in advance, and thanks for the tutorial.

[@mrcsx1]

FIXED:
In Processing IDE: In the line "myPort = new Serial(this, Serial.list()[0], 9600);" I've changed the [0] from Serial.list() to [2] Why? don't really know... just tried different numbers...
In Arduino IDE: Changed the delay to 100 milliseconds... apparently 1 is extremely fast for Processing. Got the answer from the Arduino forum here: forum.arduino.cc/index.php?topic=142311.0

[@NepetaHouse]

@@mrcsx1 Thanks! I had a similar issue. I checked the Console in Processing (tab on the bottom of the window) and found I actually have 8 ports. This is out-putted by the println(Serial.list()); line in your Processing sketch. I checked which one matches the port in the Arduino IDE (in the top menu, "Tools > Port") and then found that in the list of ports in processing.
Note that the list of ports starts with 0, so while my matching port was number 8, it is number 7 in the port list array.

[@skyno08]

hey why are u using 1.8.12 arduino IDE while there is 1.8.13 version

[@StuffWithKirby]

It doesn’t matter. That version likely wasn’t out when they recorded this.

[@raffyvalky4527]

3:32 did you seriously skip over the explanation on what you got wrong in the code!?
The one part that everyone copies from your book that is guaranteed to have an error message?

[@romaingranai2335]

She did!

[@dhritimittal3337]

When will your next video hack buttons will come iam waiting.....😀😀😀🙁🙁😶😶😶

[@dhritimittal3337]

Can we use android for this project

[@replaceitem]

There is a porocessing ide on adroid called APDE, as well as a arduino ide called ArduinoDroid, not sure if processing for android supports serial though

[@vibhamittal1628]

😊

[@romaingranai2335]

Did you move Arduino logo from the URL? Why? WHY? WHYYYYYYYYYY?
For those who might struggle :
1. Change the delay in the Arduino IDE, delay(1) to delay(100), it's gonna be way more responsive, maybe a little bit less smooth, but more responsive, otherwise you have the feeling nothing is happening.
2. If the processing sketch is displaying (that little window with the logo), and you want to tweak the Arduino sketch, and upload it to your Arduino, it won't work, cause (I guess), the port is used by Processing to communicate with your board, so just close the Processing (logo) window, change your code in the Arduino IDE, upload it to your board AND THEN you can click on the play button in Processing to start the sketch and see the changes you made in Arduino.
3. Serial.write(analogRead(A0) / 4); will write weird character in the Arduino console, if you want to see numeral value do a Serial.print(analogRead(A0) / 4), Serial.write(analogRead(A0) / 4) is there to communicate through the serial port with your Processing sketch, it will read through myPort = new Serial(this, Serial.list()[3], 9600);
It's only me, or with Arduino you only have half of the informations or documentation, you never find all the informations necessary to complete something?