PCA9685 LED Flickering

AdrianWong · Rated PG Joined: 13 Aug 2017 Posts: 12

I am using a Raspberry Pi 3 with a PCA9685. I have 4 sets of LED lights hooked up and I am able to adjust the brightness of each set. The LEDs are 3-watt lights used for Aquarius lights.The issue I am having is when the light is turned very low 10-20% they flicker or strobe. Does any one know how to fix this issue? Can the hz be adjusted? Maybe I can change the hz using some python code but I'm not sure where to start. What does hz Cayenne use as a default?

byronpaul · Rated PG Joined: 31 Oct 2017 Posts: 12

I don't have any experience about python.

Yes, you can adjust the hz.

jennikim266 · Rated PG Joined: 19 Aug 2025 Posts: 1

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