5v to power my Neopixel from Duet 2 wifi

[Karim]

@cosmowave Look at this photo .

[cosmowave]

@Karim If your LED's don't need to much current it is ok to wire them directly on the CONN_LCD.
Else you should use your external power supply.

[Karim]

@cosmowave it's just 3 neopixel for my tool head light.

[cosmowave]

@Karim said in 5v to power my led from Duet.:

@cosmowave it's just 3 neopixel for my tool head light.

Should be no problem...
Don't forget the level shifter!

[Karim]

@cosmowave this is where I am confuse, do I still need the level shifter. I am getting 5v +- and signal from the duet 2 Wi-Fi.

[cosmowave]

@Karim The signal port has only 3.3V!

[Karim]

@cosmowave Thank you . I am waiting for the part.

[Karim]

Got it working, you don't need a level shifter, 3.3v works for the signal, it's only 3 neopixel

M150 X4
M150 W255 P255

[elmoret]

@Karim

Minimum signal level for a Neopixel is 0.7xVdd, so while you might be getting lucky that it works (in this moment, at least), saying a level shifter is not needed is incorrect.

[dc42]

@Karim see https://learn.adafruit.com/neopixel-levelshifter for information on Neopixels and 3.3V logic levels.

There is a newer type of Neopixel LED called the WS2812B-V5 which is specified to accept 3.3V signal levels when using a 5V supply, but they are not easy to find yet.

[Karim]

@dc42 Thank You