QT Py SAMD21 NeoPixel support?

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ZSchoen
 
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QT Py SAMD21 NeoPixel support?

Post by ZSchoen »

There's a guide (https://learn.adafruit.com/qt-py-and-ne ... s?view=all) which connects the data directly to an analog pin.
But the NeoPixel guide (https://learn.adafruit.com/adafruit-neo ... -practices) states, that the data signal has to be 5V and the analog pin has only a budget of 3.3V according to my measurements. I wasn't able to get the external NeoPixel working.
Do I have to get a level shifter?

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Re: QT Py SAMD21 NeoPixel support?

Post by adafruit_support_carter »

Which specific NeoPixel product are you using? Can you link to product page.

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ZSchoen
 
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Re: QT Py SAMD21 NeoPixel support?

Post by ZSchoen »

adafruit_support_carter wrote:Which specific NeoPixel product are you using?
I'm not sure as I bought it from BerryBase (a distributor) and I haven't found a product number.

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Re: QT Py SAMD21 NeoPixel support?

Post by adafruit_support_carter »

You may need a level shifter then. Using 3V for the data is not a guarantee and success can vary from product to product. There's more general information about using NeoPixels in this guide:
https://learn.adafruit.com/adafruit-neopixel-uberguide

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