how to use WS2812 LED strip

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hellooo
Posts: 2
Joined: Wed Nov 25, 2020 3:45 pm

Wed Nov 25, 2020 4:02 pm

I have a lattepanda delta 432 and Official PD adapter that comes with the LattePanda Delta.

I want to use WS2812 LED strip.. about 30LEDs?

Can I use WS2812 without external power supply? I will use Arduino

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ccs_hello
Posts: 664
Joined: Sat Oct 13, 2018 9:16 pm

Thu Nov 26, 2020 4:17 pm

Each RGB LED draws approximately 50 mA when it is set to full brightness and powered at 5 V.
A 30-LED strip can draw up to 5V 1.5A.
If you must use OEM USB-C PD based power supply, there is no easy way to get 5V 1.5A out other than
combining several USB port's DC output (using 0.5A per port formula.)
<-- anyway, the OEM USB-C PD supply is designed to power LP Alpha/Delta itself, not intended to be a over-engineered general-purpose power supply

Use external power supply would be optimal, especially if yo plan to load more external devices/lights to LP Alpha/Delta.

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hellooo
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Joined: Wed Nov 25, 2020 3:45 pm

Sat Nov 28, 2020 5:37 pm

Thank you!! :)

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