Proper voltage for https://www.adafruit.com/product/3130

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cjnaz
 
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Proper voltage for https://www.adafruit.com/product/3130

Post by cjnaz »

The instructions at https://learn.adafruit.com/14-segment-a ... ng/pinouts says 3V or 3.3V, but the chip on board - HT16K33 - requires 4.5V to 5.5V.

What is the proper VDD to supply to this module? If ~5V is required, then please update the documentation.

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cjn

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dastels
 
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Re: Proper voltage for https://www.adafruit.com/product/3130

Post by dastels »

Are you having problems with it? Product 3130 is a FeatherWing so it just plugs onto a feather and should just work. I realize that the chip specs 4.5v-5.5v but it would seem that it runs at 3.3v as well.

Dave

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cjnaz
 
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Re: Proper voltage for https://www.adafruit.com/product/3130

Post by cjnaz »

I'll be running in on a custom board from a RPi. I think I'll breadboard it up and see how it does on 3.3V in my application. I may put it down with some level shifters on the I2C pins and run it on 5V.

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