Help with elapsedMillis!

Projects Programming
1

I am trying to program a timer that can be reset/retriggered by a digital input. I stumbled upon the "elapsedMillis" library which seems like it would do just what I need. However, I cannot get anywhere with it. When I use the example code given at Arduino Playground - elapsedMillis Library

#include <elapsedMillis.h>

elapsedMillis timeElapsed; //declare global if you don't want it reset every time loop runs

// Pin 13 has an LED connected on most Arduino boards.
int led = 13;

// delay in milliseconds between blinks of the LED
unsigned int interval = 1000;

// state of the LED = LOW is off, HIGH is on
boolean ledState = LOW;

void setup()
{
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
}

void loop()
{
if (timeElapsed > interval)
{
ledState = !ledState; // toggle the state from HIGH to LOW to HIGH to LOW ...
digitalWrite(led, ledState);
timeElapsed = 0; // reset the counter to 0 so the counting starts over...
}
}

I get the following error when I try to compile the above code (yes, I did install the libary and it does show up):

Arduino: 1.5.3 (Windows XP), Board: "Arduino Duemilanove or Diecimila, ATmega328"

sketch_mar13a:3: error: 'global' does not name a type
sketch_mar13a.ino: In function 'void loop()':
sketch_mar13a:22: error: 'timeElapsed' was not declared in this scope

This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.

Can anyone tell me what the problem may be?
Thanks...arniep

2

The code you posted compiles for me using 1.0.5 and a Uno.

3

Strange. I am using IDE 1.5.3. Could it be that my later IDE does not use the library properly?

4

Who knows ?
You could, of course, not use the library and do the timing yourself using millis()

5

I have not used it but maybe change:
#include <elapsedMillis.h>. TO #include "elapsedMillis.h"