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Topic: WS2803 versus WS2801 (Read 17 times) previous topic - next topic

Omnimusha

you can put a video tutorial?
Thanks.

KirAsh4

On what?  Pull-up resistors?  That's why I pointed you to the wiki page which talks about both pull-ups as well as pull-downs.

Grumpy_Mike

You still have the LED wired wrong. Is this a common cathode RGB LED?
If it is then it is likely only one colour will work.

A pull up resistor should be 4K7 and go from the pin to +5V, that is all. You do need them even with one chip.

xl97

I believe the RGB 5050 leds are common 'anything' that have 3 pads on each side: 3 x GND and 3 x V+

I usually bridge pads on the correct side to match my project(s)..



KirAsh4

On the 5050's that I have, they're common anode, and the WS2801/WS2803 sink.  So each cathode on the LED goes to a separate output pin on the chip and the anodes are tied together with VCC.  And the datasheet specifically says 50R, not 4K7 for pull-ups.

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