I am thinking of chaining four AW9523 breakout boards to control a bunch of LEDs.
The duty cycle of LEDs is low enough that I don't expect all of the LEDs to be on at the same time, nonetheless
the total current could exceed the 3.3V regulator capability of a Feather.
I am also noticed that there is a concern in a forum posts about all of the AW9523 lines being turned on when
the board boots up. Is this really the way this board works?
To avoid a fried Feather, can a separate power supply be used for the Vin of these boards?
I'm assuming that the Feather and AW9523 grounds are connected.
Powering AW9523 LED Driver
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- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Powering AW9523 LED Driver
Running a separate power supply for the AW9523 boards Vin sounds like a good solution. I guess you would have to sever the i2c connectors Vcc line from the Feather and tie in your power supply if you are using the stemma connectors.
Please be positive and constructive with your questions and comments.