Dotstar strip on a trinket M0 possible?

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martian
 
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Dotstar strip on a trinket M0 possible?

Post by martian »

I want to try and make the dotstar POV project for bicycle tires that adafruit has on their website.

https://learn.adafruit.com/bike-wheel-p ... y/overview

The project calls for a 5V pro trinket and I'm trying to figure out if I can get away with using a trinket M0. The M0 is 3.3V logic and the dotstar information states:
DotStars are 5V devices. While you might get them to respond to 3.3V signals, this is not a guaranteed thing and should not be counted on. For low-voltage microcontrollers and systems such as Raspberry Pi, a logic level shifter (e.g. 74AHCT125) is recommended for both the data and clock pins
.

I would rather avoid having to incorporate a logical level shifter into the design.

But the M0 board itself has a tiny dotstar rgb led right in it, so I'm thinking maybe this will work?

Does anyone have any insight or information?
Thank you :-)

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martian
 
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Re: Dotstar strip on a trinket M0 possible?

Post by martian »

Old post of mine, but if anyone finds this and wonders, I purchased and was able to get the dotstar strip working off the 3v out on the Trinket M0. Only running a short strip of about 36 pixels, but no problem.

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