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Beginners • Re: Do I need a pull up R for the GPIO PIN that goes to the data of an addressable LED?

5V Addressable LED's with often work with 3.3V logic even if it isn't in tolerance.

3.3V logic is often in tolerance if the addressable LED is run from a 4.4V supply which can be achieved by using a diode in the 5V supply line to the LED.
Good to hear, I've read other people confirmed these specific 5v leds had worked with 3.3v signal.

You need to use a level translator, I often use an opto-isolator for low frequency work.
So no pull up resistor?

Statistics: Posted by danilux — Sun Jun 16, 2024 7:49 am



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