Ws2812b not working

Actually it's a YES

I'm not wrong, Not because i don't want to be wrong
but

  1. Because i'm not wrong on this one (Electronics basics says so)

So.....

  • Firstly... IT'S A DIODE mate i mean... this should be the only point needed to consider, right ?

  • The Manufacturer puts those arrows there for a reason
    Ohh right.. You're going to say "Martin you fool. it's because OF THE DATA"
    Ohh right, How stupid of me LOL
    Not because

  • The Strips being Addressable are an ACTIVE Device and as such, without Voltage
    THERE IS NO DATA

  • Another reason i'm right
    Because IT'S MY COMMENT and i know the context in which i was talking and you missed the context.
    See... this Objection....

it's incorrect for a few reasons but then also it's correct.
it's like this..

  • When i was talking i was referring to the O.P. Saying they couldn't get the strips TO
    WORK, So before any data WE TEST VOLTAGES
    Without Your voltage you are not going to have the data as the data needs voltage
    to achieve Highs and Lows in the signal for the data packets. not to mention the I.C.
    needs voltage to turn on and work.
    so your point about Data Flow direction is not incorrect, but until Voltage is established
    its' pointless.

  • it's also a fact that BOTH Data and Current Must flow in the direction of the Arrow.
    it's NOT a fact that only Data must flow in that direction and the voltage and current
    can flow in the reverse.

  • Also we are working with DC Here, Not AC (i trust you remembered that)

it's not that you're wrong, (at least not about the Data Part) it's that i'm also not wrong
but then you ARE wrong about me being wrong
so I am right and you are both right and wrong
But it doesn't even matter.

  • Another point, This has been tested and experimented to the point where
    IT'S A KNOWN ISSUE LOL
    Can't believe you're debating this with me

  • it's a known issue that if you hook up the voltage backwards (Specifically through the plastic connector) (if on the wrong side of the strip... Which it USUALLY is), You're not gonna get voltage, No Voltage... No Data. Current won't flow in the opposing direction.

  • But the main point was, I didn't even touch on the point of data
    and it is a fact that Voltage can only pass one way through a traditional Diode .
    This is Electronics Basics mate

so.. this

Is incorrect
But it also isn't even addressing what i actually said and to have this debate is rather pointless because we all know how you hook up LED Strips don't we

Red is +
Black is -
Green is Data
Colour to Colour and in the direction of the Arrows (should they be there)
I mean... LOL, Are you really going to go down this road ?

It has been brought to my attention that i missed that in this photo the negative is actually white and not black, I am however referring to the standard that is widely accepted, in any case... Colour to colour Still applies.

Also why does this matter and why couldn't you just understand THE CONTEXT in which i was talking within.
There is no victory to be gained by shooting me down over direction of Current flow.

again... Very common issue for beginners to hook it up backwards.
We've all done it, i've done it, its' been confirmed simple as that
so.. it's not wrong
Because Data and Current and voltage have to flow in that direction not just data.

in the Red corner the un defeated Karma with 2500+ consecutive Karma points to his career
who claims that Data must flow in the direction of the arrow but current doesn't

You're not seriously holding the position that the current flows in the opposing direction to the arrows are you ?

moderator edit: feeble attempt at removing copious ad hominem and other garbage

For Clarification i found this
Now it's not always a hard and fast rule
but look at these 2 connectors, now USUALLY on a roll you get only 1 connector, but..


if you get 2 it usually works like this

The connector on THE LEFT....
especially since you have the extra black and red for additional power, this is the front side connector (the Male) If you connect to this side it'll work

The Female connector on THE RIGHT is the one that was used,
this is at the end of the strip

the trap is... it's easier to crack out a few jumper wires and pop the pins into this one
and that's why it happens

@Samar2013
In summary, take special care to insure you connect the LED strip supply voltage to the correct connector pins. Also, be careful to observe the correct logic signal direction, denoted by the arrow on the strip.

It’s probably worth mentioning that you can connect power to either end of the strip and even at intermediate points in the strip as long as you observe the proper polarity. Data, on the other hand, can only be connected at the beginning of the chain. The arrows will give you a clue as to where the beginning is.

@Samar2013, have you gotten the help you need?

See post #26 for confirmation.

Oh and I am not your mate.

moderator edit: ad hominem removed

It seems like the slightest criticism of your believes on this matter offends forum guide lines. So I will have to add you to my ignore list when you come off your current ban, instead. Goodbye.

2 Likes

I'm not wrong, Not because i don't want to be wrong but
Because i'm not wrong on this one (Electronics basics says so)

I'm thinkin' it's because you dont want to be wrong but we'll let that
one lie.

So.....

You've told us in detail about arguments that start like that.

Firstly... IT'S A DIODE mate

Nope, it's not, it's a chain of LED modules containing an IC and multiple LEDS.

You're going to say "Martin you fool. it's because OF THE DATA" Ohh right, How
stupid of me LOL Not

Thanks, no need for us to say it.

Another reason i'm right Because IT'S MY COMMENT and i know the context
in which i was talking and you missed the context

I believe you missed the context of Grumpy_Mike's comment as well.

When i was talking i was referring to the O.P. Saying they couldn't get
the strips TO WORK, So before any data WE TEST VOLTAGES Without Your
voltage you are not going to have the data as the data needs voltage to
achieve Highs and Lows in the signal for the data packets.

And had we tested voltages we would have read the correct voltage as you can connect power to either end of the string as long as you observe the correct polarity.

Voltage can only pass one way through a traditional Diode. This is Electronics Basics mate

i don't think it's necessary to embarass you about your conception of what voltage is... mate.

The manufacturer put those arrows on the strip to indicate the direction of signal(data)flow. The manufacturer put 5V & GND on the strip to indicate how to hook up power. The manufacturer didnt see any point in even indicating which way current flows. It's irrelevant to the hookup procedure.

OP is correct to power their strip from whichever end they prefer. Their mistake was connecting the data signal to the wrong end because they overlooked the arrows.

1 Like

This is true, and can be verified by putting SIG in the right end (PIX lights) and again in the wrong end (no PIX light).

This is true and can be verified by a continuity test. The GND pad at PIX#0 buzzes to the GND pad at PIX#N, and the same with 5v pad (continuity). This allows "power injection" at any point to keep the lights from sagging.

Ok, I'm curious. Did the strip start working when connected properly? MAYBE the 330ohm resistor you had in there would have protected the "shorted" outputs from damage, and MAYBE even if it didn't you would have only burnt out that "end" Neopixel...

@Coding_Badly Yes

1 Like

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