Here’s a short Arduino sketch that will fade and flash an LED on pin 9. Works a treat on a Shrimp as well. Which is what mine runs on - my Breaded Shrimp which stared like on a tiny breadboard like the one at the end of the above link, but which is now permanently soldered onto a piece of copper “breadboard” as you can see in the image that’s around here somewhere.
What does it look like? Well, I can’t upload a video for security reason (or so WordPress tells me after I’ve uploaded the video!) Imagine, if you will, the LED in the image fading up from nothing to full brightness, flashing 3 times, then fading back down again where it flashes another three times before starting again.
Maybe it needs a little more work?
More LEDs?
What do you think?
I suppose I could call it minimalist? :-)
Maybe I’m just not cut out for this sort of work?
Happy Christmas, or whichever Winter Festival type celebration that you follow. Whatever it is, do have a nice one.
Anyway, here’s the code:
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| /*
* This code is a cross between the "Fade" and "Blink" examples
* Supplied with the Arduino IDE. Not much has changed, just the
* removal of a few "magic" numbers.
*
* This example code is in the public domain.
*/
int brightness = 0; // Brightness of the LED, right now.
int fadeAmount = 2; // Fade the LED up/down by this amount each time.
int led = 9; // The LED is attached to this pin.
int flashDelay = 200; // Pause between flashes of the LED.
int fadeDelay = 20; // Pause between fadeAmount changes.
void setup() {
// declare pin 9 to be an output:
pinMode(led, OUTPUT);
}
void loop() {
// set the brightness of pin 9:
analogWrite(led, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness <= 0 || brightness >= 255) {
// Flash the LED a few times at each end
// of the fading cycle
for (int x = 0; x < 4; x++) {
digitalWrite(led, HIGH);
delay(flashDelay);
digitalWrite(led, LOW);
delay (flashDelay);
}
// And now, reverse the fade.
fadeAmount = -fadeAmount ;
}
// Pause a little, to see the fading effect
delay(fadeDelay);
}
|
Simple stuff, and very Open Source too. Take it, use it, abuse it if you like. Just have fun.
Cheers.
