I cant connect together arduino 2560 amd SimTools

I cant receive data on my arduino board! i just receive only 255, 255,255..

Hi, @MagicMike. How do you think is anybody can help you based on your information?

There are a lot of reasons:
1 - your Arduino sketch is incorrect (wrong serial port initialization, wrong byte recognize, etc.)
2 - your SimTools setup is incorrect
3 - etc...

Please post your sketch and SimTools Interface Setting...

PS: How you detected that Arduino receive 255,255,255?

Regards

const int ledPin = 2;

void setup()
{
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
}

void loop() {
byte brightness;

if (Serial.available()) {
brightness = Serial.read();
analogWrite(ledPin, brightness);
}
}

All i want is to grab the values from the sim tool and dim one simple led! Thank you

Sorry!

your COM port baud rates are different. 9600 in sketch and 115200 in SimTools.

Ok i have fix this error . Also this is another snapshot of Simtools

You should assign some DOFs for each Axis ... Look "Quick Start Guide" here
http://www.xsimulator.net/simtools-quickstart/

Ok i fix that all ready! But the problem still here. I think the problem is about how i read the data from the SimTools

Try to change sketch like this (add "Serial.write(brightness);") and try to connect with Arduino by Serial Port Monitor in Arduino IDE
You should receive correct data...

Code:

const int ledPin = 2;

void setup()
{
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
}

void loop() {
byte brightness;

if (Serial.available()) {
brightness = Serial.read();
analogWrite(ledPin, brightness);
Serial.write(brightness);
}
}