Beiträge von fr3sh

Zitat von penfold42

Have you looked at the wiki ?
https://hyperion-project.org/wiki/3-Wire-PWM
I have yet to document abusing the SPI bus yet.

My SPI to ws2812 stuff is here
https://github.com/penfold42/stuff/blob/master/README.md

I've never bothered with level shifters - I had some minor corruption on one strip that the level converter didn't fix - turns out my wemo controlled fluorescent lights were causing interference

how the hell I missed it. Thanks a lot.
One more question. I'm trying to do it on openelec. Does I need some change in the system to activate the GPIO.

Zitat von penfold42

I've done both with good success.

A 2812 can de used directly with either the ws281x or ws2812spi led drivers.

I've also written a small arduino avr program to take SPI data and resend it as 2812 data

Super can you share how you did it?

Without arduino:
How you connect leds to RPI
What config do you use on hyperion.
Do you use converter? What kind?

With Arduino pro mini:
I'm wondering is it realy necessarily to use some kind converter (5V - 3.3V) between arduino pro mini an RPI.
How you connect them?
What config you use in the hiperion?
Could you share the arduino project?

Zitat von TPmodding

use adalight on the arduino and connect it via usb to the pi, and then connect your leds to your arduino )

I'm aware of that. My question was different.

1. How to do it without arduino (on led ws2812b )? I have found the solution above but have never tried yet. Maybe someone does?
2. How to do it with arduino pro mini and connect to GPIO on RPI

Hi

Does anyone try to connect ws2812b leds direct to RPI3?
I have found this:
http://hackaday.com/2014/03/26…ight-clone-for-the-raspi/
I think it will be possible with level converter chip like the 74AHCT125.
You can read article:
https://learn.adafruit.com/neopixels-on-raspberry-pi/wiring

Maybe someone tried to connect arduino pro mini to the GPIO?