NeoPixel (WS2812B) Demo

[Dave]

Where can I get the file NeoPixelDemo.ZIP as well as the INCLUDE file? I would like to try them.

[pedja089]

Scroll down code and you will find link, or click here
http://www.picbasic.co.uk/forum/atta...7&d=1417555928

[astanapane]

That is really nice piece of code, even if i cannot understand the include asm file.

Have anyone used it with a 16 or 24 led WS2812 ring? (not the B version)

I've tried with the pic currently have 18F26K22 at 64 Mhz. On a 16 ring or 24 ring, i cannot set up all the led's to be functioned.

when i set

NEO_NUM     CON 16  'Number of pixels in Cyrcle

Only 8 out of 16 LED are functioned.

In case i increase the number, to 29, only 14 LED's are working, then no matter what number i use.....30+, still 14 LED's are light.

The last two LED's are not working. Have been test it with 24 ring as well, and the last 2 LED's are not working.

If anyone have experienced the same, would be nice to share your comments.

[richard]

I've tried with the pic currently have 18F26K22 at 64 Mhz. On a 16 ring or 24 ring, i cannot set up all the led's to be functioned.

given that the include files expect a 20mhz clock what steps have you taken to compensate for running at more than 3 times the expected speed

[astanapane]

Ooops havent seen that. I might try a 20 Mhz crystal then. Should be easier.

[astanapane]

I used 4Mhz crystal to 4xPLL and it worked. I couldnt see in the datasheet of the PIC18F26K22 any 20Mhz configuration.

The code is really good. thanks the Author: Michel Jasmin

[astanapane]

May i ask something?

Could i use all this code as a secondary code?

I'm thinking to use it only as an effect when the PIC is powered up, the RGB led ring to do its pattern.

But the main program not to be affected by this code.

DT has given to us the interrupt function of a flashing LED without disturbing the main program.

But i really dont know how to import all this code or how to use this DT's interrupt method here.

Could anyone guide me? Thanks a lot.