I have a pair of boards that I dug out of storage and was going to start coding for a series of lights, but I cant get a singular LED to turn on, same code, both boards. I have a standard blink uploaded to both.
the Uno just has the L light blink rapidly 3 - 5 times, not following the code pattern, and then just dying until I unplug it and plug it back in. I think the Uno might just be broken, but what is up with the mega?
Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'
Use code tags (the < CODE/ > icon above the compose window) to make it easier to read and copy for examination
Please post your full sketch, using code tags when you do
Posting your code using code tags prevents parts of it being interpreted as HTML coding and makes it easier to copy for examination
In my experience the easiest way to tidy up the code and add the code tags is as follows
Start by tidying up your code by using Tools/Auto Format in the IDE to make it easier to read. Then use Edit/Copy for Forum and paste what was copied in a new reply. Code tags will have been added to the code to make it easy to read in the forum thus making it easier to provide help.
It is also helpful to post full error messages in code tags as it makes it easier to scroll through them and copy them for examination
void setup() {
// put your setup code here, to run once:
pinMode(13, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
}
