Pure Data to Arduino

You can control Arduino values from in PureData


01| CONNECTING THE LED TO THE PWM PORT ON THE ARDUINO

1. Place a LED on the breadboard ( you can choose where )

2. Connect a line from the PWM port (9 in this case) to the IN of the LED ( the longest end ) we will also define this in Arduino

3. from the OUT of the LED connect a line to the GND ( ground ) of the arduino board

Thats it for the Arduino connection part.

02| MAKING THE ARUIDNO SKETCH
I made a very understandable sketch.

this is the code ( the code is self-explanatory but if u don't understand something you can always leave a comment with your problem.)

int incomingByte = 0; // for incoming serial data
int led = 9;

void setup() {
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
pinMode(led, OUTPUT);
}

void loop() {

// send data only when you receive data:
if (Serial.available() > 0) {
// read the incoming byte:
incomingByte = Serial.read();

// say what you got:
analogWrite(led, incomingByte);
}
}

03| MAKING THE PURE DATA PATCH

4. start by making a "comport 9600" object. comport is the communication port. you will select wich port in the next step. 9600 is the data transfer speed, we will also define this in Arduino

5. Add a message button with "devices", this will list all available devices in the print window (console). You should know wich device it is because you selected this in the arduino toolbar.

6. When you see in the console wich device it is you use for arduino, you can add a "Open #DeviceNumber" in my case "Open 3".

7. Now it's time to make the controlslider for the PWM value of the LED in arduino.
add a "vslider" object. stands for Vertical Slider

8. we need to change the value of the slider so it matches the PWM output values for the LED. the values for a PWM go from "0 - 255". with 255 being Full bright LED.
so we Right click the slider and go to properties and change the value

That's it for the PureData Part.