Leonardo only works after upload via IDE

Projects General Guidance
1

i have a simple mouse mover program that works fine after an upload.
i can then exit the IDE and it works fine.
but if i just plug it in without the ide, the leonardo doesnt do anything.

do i need to set up a port or something?

#include "Keyboard.h"
#include "Mouse.h"
#include "string.h"


int buttonstate;
int buttonPin=8;

String btn2str = "start";

char cc;
int len;
int onetime=0;
int jj=0;

void setup() { // initialize the buttons' inputs

  // initialize mouse control:
  delay(3000);
  Mouse.begin();
  Keyboard.begin();
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(buttonPin, INPUT);
  delay(200);
  flash5times(1000);

  flash5times(100); 
  Keyboard.println(btn2str);
  
}

void loop() {

  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  buttonstate = digitalRead(buttonPin);
  
  delay(100);

  // move mouse every 5 min
  
  if (jj>50) {
    flash5times(300);
    Mouse.move(100, 100);
    delay(50);
    Mouse.move(-99,-99);   

    delay(50); 
    Mouse.move(100, 100);
    delay(50);
    Mouse.move(-101,-101);
    jj=0;
  }
  
  delay(500);
  jj++;
 
}
2

Is that everything?
(I'm asking because - it seems there's stuff missing.)

3

Below simple sketch prints the start message to the active window 3 seconds after powering up the Leonardo.

Maybe move your delay(3000) to after the begin() calls.

#include "Keyboard.h"
#include "Mouse.h"

String btn2str = "start";

const uint8_t safetyPin = A0;


void setup()
{
  pinMode(safetyPin, INPUT_PULLUP);

  Mouse.begin();
  Keyboard.begin();
  delay(3000);

  while (digitalRead(safetyPin) == HIGH)
  {
  }

  Keyboard.println(btn2str);
}

void loop()
{
  // put your main code here, to run repeatedly:

}

You will need to short A0 to GND; this is just a safety measure that I recommend so mistakes in the code can be suppressed by removing the short.

4

If you replace above loop() by below, the mouse will also make 5 moves

void loop()
{

  static uint8_t counter;

  while (counter < 5)
  {
    Mouse.move(10, 10);
    counter++;
    delay(1000);
  }
}

Conclusion:
Nothing special needed.

5

thats it, it is just a simulated mouse move even X minutes to keep my screen from locking every time i walk away.
the security lockout is set to 5 minutes on my laptop so anytime I get up, i have to login again (even tho i work from home by myself)
the buttons previously actually typed my passwords but i have stripped that out for now.
i am brushing off an old program from 6 years ago which worked great but maybe there is something about the new board givng me problems.

6

i tried this code and grounded A0. i still have the same issue.
i upload from the IDE, it runs fine. the mouse moves.
but if i dont use the IDE and just plug in or restart the leonardo, it does nothing.
just the blue light, no yellow and no mouse moves.

7

I copied and tried to Compile (Post No.3) → Fail:
'flash5times' was not declared in this scope

I won't ask any more questions.

8

sorry, the fcn was missing from the bottom.

here is all the code.

#include "Keyboard.h"
#include "Mouse.h"
#include "string.h"


int buttonstate;
int buttonPin=8;

String btn2str = "start";

char cc;
int len;
int onetime=0;
int jj=0;

void setup() { // initialize the buttons' inputs

  // initialize mouse control:
  delay(1000);
  Mouse.begin();
  Keyboard.begin();

  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(buttonPin, INPUT);
  delay(200);
  flash5times(1000);

  flash5times(100); 
  Keyboard.println(btn2str);
  
}

void loop() {

  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  buttonstate = digitalRead(buttonPin);
  
  delay(1000);

  // move mouse every 3 min   
  
  if (jj>180) {
    flash5times(300);
    Mouse.move(100, 100);
    delay(50);
    Mouse.move(-99,-99);   
    flash5times(100);
    delay(50); 
    Mouse.move(100, 100);
    delay(50);
    Mouse.move(-101,-101);
    jj=0;
  }
  
  delay(10);
  jj++;
 
}


void flash5times(int delayms){
  int ii;

  for (ii=0; ii<5; ii++) {
        digitalWrite(LED_BUILTIN, HIGH);
        delay(delayms);
        digitalWrite(LED_BUILTIN, LOW);
        delay(delayms);
  }
      
}
9

that is the board i am using.

not sure if this is relevant but each time i start the IDE, have to select the board/port, usually shown as COM3 or COM7

image

10

I think you will find that keyboard.h waits for the serial connection to be available. So in fact you are testing that that function does, in fact, work that way.

11

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