undefined | Better HN

0 pointsscns5y ago0 comments

That sounds awesome, can you do a write-up about it please?

0 comments

For the software part, WLED [0] really does just about anything you’d want to do with those led strips.

I drive the wemos d1 and led’s from a 12V battery with a 12-5V stepdown converter. I attach the 5V to the esp and the led’s. The 3.3V logic level works on the first led and is repeated at 5V to all subsequent led’s.

[0] https://github.com/Aircoookie/WLED

fullstop5y ago

Apparently 3.3v doesn't always work with the strips, and newer ones are less likely to work, especially if you're working with a lot of lights.

andruby5y ago

My assumption was the each individual led chip will re-transmit the signal to the next led, which in effect will turn the 3.3v signal into a 5v signal between the 1st and subsequent leds.

The power lines do sustain voltage drop over longer sections, so you'll want to add extra power every few meters.

1 more reply

fullstop5y ago

I'll see what I can do.

j / k navigate · click thread line to collapse

0 comments

andruby5y ago

For the software part, WLED [0] really does just about anything you’d want to do with those led strips.

[0] https://github.com/Aircoookie/WLED

fullstop5y ago

Apparently 3.3v doesn't always work with the strips, and newer ones are less likely to work, especially if you're working with a lot of lights.

andruby5y ago

My assumption was the each individual led chip will re-transmit the signal to the next led, which in effect will turn the 3.3v signal into a 5v signal between the 1st and subsequent leds.

The power lines do sustain voltage drop over longer sections, so you'll want to add extra power every few meters.

1 more reply

fullstop5y ago

I'll see what I can do.

j / k navigate · click thread line to collapse