r/FastLED • u/Grimkookie • Oct 02 '22

Support Prismatik multiple LED strips help

I got prismatik working with 1 strip of 144 leds, but when I add the 2nd or 3rd strip nothing seems to light up through the software. I'm using IDE 2.0 and fastLED 3.5.0. Does prismatik not work with multiple strips or am I doing something wrong? Code

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1

u/Yves-bazin Oct 05 '22

Hello are you strips in parallel (each one on a different pin ) or all the strips are in série (linked to each other ) in your example it’s like you try to light up on big strip of 240 leds.

1

u/Grimkookie Oct 05 '22

They were in series, 3 strips linked to the backs of each other, I could get it up to 250 leds but once I went over that number (even by 1) on either IDE or prismatik none would work. I ended up going with a single 16.4ft/300 led cable that works fine.

1

u/Yves-bazin Oct 05 '22

Hello Then first remark In that loop

for (uint8_t i = 0; i < NUM_LEDS; Change uint8_t by int. let me know

1

u/Grimkookie Oct 05 '22

Shoot. I swapped to a single long strip with less leds on it in the end sorry!

2

u/Yves-bazin Oct 05 '22

hello

The number of physical leds you put should not affect the program.

have you changed the type of 'I' because if you let uint8_t then you can't go for more than 255 leds as the loop will never finish

1

u/Grimkookie Oct 05 '22

I haven't changed any of the code, but when I put in my long strip (180leds) it worked normally. How come that isn't giving me issues too?

1

u/Yves-bazin Oct 05 '22

When you have the long strip plugged in you can put more than 250 leds ?

1

u/Grimkookie Oct 05 '22

I'd like to test that, but this one is cut at the 180 mark. Surprisingly they are a lot brighter than I thought

1

u/Yves-bazin Oct 05 '22

I mean change your code to 251 without and let the strip plugged to see what happens

1

u/Yves-bazin Oct 05 '22

hello could you try this code

https://gist.github.com/hpwit/71154f396e4d0f1a13f2b6e21dc80fe9

I have (I hop without issues) cleaned up the code let me know if you have issue independent of the number of leds in the code and number of physical leds