I have a 12V addressable RGB strip that I want to control with an Arduino, the chips are ws2811s, is there a way to do this as the Arduino is 5V and 3.3V?
Could i just connect the strip as 12v and connect the ground to the arduino and treat it as a 5v strip?
It always helps to look at the Datasheet of a chip if you are not sure.
Never worked with this but it looks like the supply usually is 12V but the datalines should work just fine at 5V, maybe even at 3.3V
Arduino is 5V and 3.3V?
No it isn't. It is either 5V or 3V3. The processor only takes one voltage.
The odds are that you have a 5V system with a 3V3 regulator on it. But it could be that other way round so what Arduino do you have?
To drive this strip you need a library, the FastLED library is suitable.
The actual chip seems to run on 5volt, so 5volt logic from the Arduino.
Not sure if you can use these chips with 3.3volt logic.
A 5volt LED strip has one drive chip per RGB LED, so every single LED can change colour.
The 12volt version uses three LEDs in series.
One chip per three LEDs, so colour change is per three LEDs only.
Leo..
DedeHai:
It always helps to look at the Datasheet of a chip if you are not sure.
Never worked with this but it looks like the supply usually is 12V but the datalines should work just fine at 5V, maybe even at 3.3V
It works on both 5V and 3.3V.