5v to power my Neopixel from Duet 2 wifi

[cosmowave]

@Karim Yes, that should work.
Pin5 of CONN_LCD is only the signal. For the signal you should insert your level shifter.
Don't forget to connect the GND's of your Duet and external power supply, else they are not on the same "level".

[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