Arduino controll input command ON/OFF

Community General Discussion
1

My problem is that the laser can be turned on, but it can't be turned off. Sometimes it succeeds in ten attempts. I tried TFT display or serial control but still the same problem. Am I doing anything wrong? or is the hardware so busy that it can no longer accept further ID? Mega 2560, wemos mega wifi r3 atmega2560 esp8266.

void serialEvent3()
{
  while (Serial3.available())     
  {  
    char inChar = Serial3.read();      
 //   Serial.write(inChar);

    inString += inChar;  
    if (inChar == ']')
     {
        if (inString.indexOf("[ON]")>0)   { las_on = true;  }
       else 
        if (inString.indexOf("[OFF]")>0)  { las_on = false; }

       else

        if (inString.indexOf("[ON1]")>0)  {               }
       else 
        if (inString.indexOf("[OFF1]")>0) {               }
      
 // { Serial.println("Wrong command"); }
    
    //  inString = "";
    }
  }
}

void loop() 
{
  
if ( las_on == true  )
 { laser.setOffset(2048, 2048); laser.setScale(1); Drawing::drawObject(draw_point, sizeof(draw_point) /4); }

}
2

Welcome to the forum

What is sending the serial commands to the Arduino ?

We haven't seen the rest of your sketch, so who knows what it is doing when the laser is turned on ? Please post a complete sketch that illustrates the problem

Personally I have never seen the point the the SerialEvent functions. You might just as well use the available() function in loop() and do something if serial data arrives. I would also use strings rather than Strings, but that is another debate

3

Hello bigimot1
Take a view.

Have a nice day and enjoy coding in C++.

4

Here is the full code. My opinion is that the Controller is really very busy.

5

Which project on github is it supposed to be? LaserShow or LaserSpectrumAnalyzer? Neither of them seem to contain a function called serialEvent3().

There is no code to switch it off; may be an else needs to be added.

6

LaserShow.

I want to add that code. I want to control it through the application I make in Processing.

7

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