user45760: Serial.println("CLEARDATA"); //clears up any data left from previous projects
Serial.println("LABEL,time,load reading(gm),microwave output,CO sensor,sound data,magnetic sensor "); //always write LABEL, so excel knows the next things will be the names of the columns (instead of Acolumn you could write Time for instance)
Serial.println("RESETTIMER"); //resets timer to 0

//pinMode(AOUTpin, INPUT);//sets the pin as an input to the arduino 
// pinMode(ledPin, OUTPUT);//sets the pin as an output of the arduino 
Serial.println("HX711 calibration sketch");
Serial.println("Remove all weight from scale");
Serial.println("After readings begin, place known weight on scale");
Serial.println("Press + or a to increase calibration factor");
Serial.println("Press - or z to decrease calibration factor");


user42539: I don't see this before the print statements:
Serial.begin(9600); // or some other speed
That will prevent anything from printing.

user31105: There can be different reasons, among:

The speed of the serial port does not match with the serial 'monitor' 
The speed of the serial port is not set at all (can cause first problem)


45760: <pre><code>Serial.println("CLEARDATA"); //clears up any data left from previous projects
Serial.println("LABEL,time,load reading(gm),microwave output,CO sensor,sound data,magnetic sensor "); //always write LABEL, so excel knows the next things will be the names of the columns (instead of Acolumn you could write Time for instance)
Serial.println("RESETTIMER"); //resets timer to 0

//pinMode(AOUTpin, INPUT);//sets the pin as an input to the arduino 
// pinMode(ledPin, OUTPUT);//sets the pin as an output of the arduino 
Serial.println("HX711 calibration sketch");
Serial.println("Remove all weight from scale");
Serial.println("After readings begin, place known weight on scale");
Serial.println("Press + or a to increase calibration factor");
Serial.println("Press - or z to decrease calibration factor");
</code></pre>
 42539: <p>I don't see this before the print statements:
Serial.begin(9600); // or some other speed</p>

<p>That will prevent anything from printing.</p>
 31105: <p>There can be different reasons, among:</p>

<ul>
<li>The speed of the serial port does not match with the serial 'monitor' </li>
<li>The speed of the serial port is not set at all (can cause first problem)</li>
</ul>
