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Topic: Spliting data on RGB strip (Read 97 times) previous topic - next topic

IanStMartin

Jan 14, 2019, 08:35 pm Last Edit: Jan 14, 2019, 08:36 pm by IanStMartin
Hi all

Fairly sure this will be OK, but thought it worth checking first...  not in the mood for the puff of smoke moment tonight.

I have several strips of WS2812b controlled RGB leds. All fine there.

One of the strips has a few obstacles in the way, so I planned to simply cut out the sections where required, and link the data off the adjacent strip at the required aligned data point.

Any reason that won't work?

I don't have enough programming space to allocate a data stream to each individual strip.

Terrible image attached to help explain


larryd

#1
Jan 14, 2019, 08:39 pm Last Edit: Jan 14, 2019, 08:39 pm by larryd
Not sure what the fanout is for a pixel.



Looks like it would work.

You could experiment with some short strips.


No technical PMs.
The last thing you did is where you should start looking.

Grumpy_Mike

I would use a separate resistor for each strip not a common one.

MarkT

And run a ground wire alongside every data wire.
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

Deva_Rishi

And run a ground wire alongside every data wire.
I would pull GND and power from the spot where also the data is coming from (observing the maximum current-draw for the strip, eg the total length of the strips added) The logic output of the WS2812-chip is relative to it's Power/GND.
To 'Correct' you have to be Correct. (and not be condescending..)

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