[DIY] Selfmade AmbiLight using LED Strings (2 Viewers)

[HomeY]

Indeed, FirstLight doesn't do anything either. Time to check the Data cable (which i had more Arduino stuff to simply do that)
Need something that fits in the tiny holes.

Btw: I'm using WS2812B LEDs.
Switching Data to other end doesn't seem to do anything either

 

[HomeY]

How hard can this be??
Just reconnected the LEDs a few times, and then the first LED went bright RED and stayed on. After reconnecting, only a tiny 'blink' and nothing.

@kenwonders

FastLED.addLeds<WS2812B_800, DATA_PIN, RGB>(leds, NUM_LEDS);

Not sure if that's correct for 800 kbps, but throws an error.

 

[kenwonders]

have you grounded to the arduino? that looks suspiciously like a grounding issue now. stick with FirstLight, as thats the LED proving ground, then you can move to the fun of AtmoLight once you know it *should* work

 

[HomeY]

have you grounded to the arduino? that looks suspiciously like a grounding issue now.

Yeps, i have the arduino grounded to the PSU. Somehow (after connecting the power several times in a row) the first LED started to light up (but this only happened once):


GND = black wire on top, connected to COM on PSU
DATA = PIN 2
Arduino power = USB

My output:


PSU connections:


My LED strip is 4 meters long (60 LEDs/m). Can it be that it's too long for this test?

 

[BassFan]

I've seen your index finger and will send a report to the NSA LOL
I hope that cheer you up something

greets

 

[HomeY]

Just noticed the following on the Datasheet:

Special note on the bottom to use a 'GRB' order to sent data, AND the high bit sent at first?!?

 

[Lightning303]

How do you power your arduino? Same psu or seperate one?
Also can you make a picture of the label for the connectors on the psu?

 

[HomeY]

How do you power your arduino? Same psu or seperate one?

Arduino is powered through USB

Also can you make a picture of the label for the connectors on the psu?

Check the last picture in my previous post
Terminal Pin Assignment in the middle corresponds with the RED block

But i think i know what might cause this: The RGB <> GRB order!
Gonna give it another try

 

[Lightning303]

Check the last picture in my previous post
Terminal Pin Assignment in the middle corresponds with the RED block

Im an idiot ;p.

But i think i know what might cause this: The RGB <> GRB order!
Gonna give it another try

Nah, sorry, but that not the problem . Its 24 bits no matter if rgb or grb or whatever. You still should see a result, a wrong one, but a result.
Have you checked if you connected to the right end of the arduino? Often there are Arrows showing the way the data can "flow".

 

[HomeY]

Have you checked if you connected to the right end of the arduino? Often there are Arrows showing the way the data can "flow".

Analog on 1 side, digital connections on the other. I'm using the Digital connections for data, and have tried both PIN2 & PIN6 without joy

After uploading the sketch, the LEDs should start automatically, right??