Recently, I am working on the Peggy2.0 projects.
And I wanna turn on all the LEDs, then I wrote the codes like this:

#define FPS 80


#include <Peggy2.h>

Peggy2 displayArea; // Make a first frame buffer object, called displayArea
//Peggy2 displayArea1;
//Peggy2 displayArea2;
//Peggy2 displayArea3;

void setup() // run once, when the sketch starts
{
displayArea.HardwareInit(); // Call this once to init the hardware.
// (Only needed once, even if you've got lots of frames.)
// Manually write sample pattern to buffer: turn on a few pixels, one by one:
} // End void setup()


byte i = 0;
byte j = 0;

void loop() // run over and over again
{
if(j>24)
{
j = 0;
i++;
if (i > 24)
{
displayArea.Clear();
i = 0;
j = 0;
}
}
else
{
displayArea.SetPoint(i,j);
delayMicroseconds(1000);
j++;
}

}

But it only turns on 6 coloums, then stop and begin it again.
I am wandering if the problem comes from hardware or not. But I can run the example program correctly.

If the built-in and example programs run correctly, then the hardware is probably working correctly.

Look at the example program peggy2_minimal for an example of what you're trying to do.

Looks like your code does not actually tell the Peggy to draw anything on the screen.

Quote by: Windell

If the built-in and example programs run correctly, then the hardware is probably working correctly.

Look at the example program peggy2_minimal for an example of what you're trying to do.

Looks like your code does not actually tell the Peggy to draw anything on the screen.

It is supposed to turn on all the LEDs one by one by using function SetPoint(i,j) in the loop function.

Sometimes, if I touch the board, some random LEDs will be turned on and flash, and then disappear.
I am not sure that is normal or not.

Thanks a lot for answering my question.

>It is supposed to turn on all the LEDs one by one by using function SetPoint(i,j) in the loop function.

The SetPoint function writes to the buffer, it does not display to the screen. You need to use one of the refresh routines to do that. Again, please see the examples for a working model.

I tried the example "minimal". That doesn't work.

>I tried the example "minimal". That doesn't work.

Okay... You said earlier that you can "run the example program correctly." Which example program are you referring to?