Hi all well this is a bit embarrassing. Cleaning out the cupboard and found these lights I bought a few years back and have now decided to build a few more props with them. Problem being the wire colours are different to all of my other 5volt 2811 lights ie: black/ grey stripe is ground the yellow/green is data and blue is V+. I am presuming the white in this set is data the blue is the V+ and the red is the ground but would like to be sure incase it goes pear shaped. Thankyou
Colours confusing
- Thread starter Julie
- Start date
Usually it's printed on the green PCB - likely the opposite side to which you have up.
I'd almost say that you have polarity backwards -
Red = Positive, Blue = Ground and White = Data.
Flip over one of the pixels and look at the solder pads just where the wires connect in.
I'd almost say that you have polarity backwards -
Red = Positive, Blue = Ground and White = Data.
Flip over one of the pixels and look at the solder pads just where the wires connect in.
Managed to just make it out on one of the pixels
This one has a clear 5V where the red arrow is - being the red wire
A "DI" where the white arrow is, meaning Data in (and the big white arrow on the PCB shows the data direction)
And a "GND" where the blue arrow is (blue wire).
This one has a clear 5V where the red arrow is - being the red wire
A "DI" where the white arrow is, meaning Data in (and the big white arrow on the PCB shows the data direction)
And a "GND" where the blue arrow is (blue wire).
Martin Mueller
Light Addicted and proud of it.
General rules of thumb on this: There is NO color standard for the wires. Most vendors print the polarity on the PCB. Do NOT assume the power lines are on the outside and the data is in the center (I have seen V- in the center).
You can measure V+ and V- continuity end-to-end on the string, making it easy to identify the data wire (Data is regenerated at each pixel, power flows to all pixels on a common wire).
You can measure V+ and V- continuity end-to-end on the string, making it easy to identify the data wire (Data is regenerated at each pixel, power flows to all pixels on a common wire).