The Planted Tank Forum - View Single Post - A Cheap, Simple, Compact DIY LED Controller/Driver COMBO.
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post #28 of (permalink) Old 02-26-2013, 06:00 PM
All your base
Planted Member
Join Date: Dec 2006
Location: NY
Posts: 228
Now, slap an I2C PWM chip on those boards instead of running directly off a PWM pin from the AVR and you've got enough bandwidth to add tons of channels! I doubt most hobbyists need that though so it would be a bit wasteful...

What were the failures on the integrated unit if you don't mind sharing? I'm curious to know if they line up with what I've seen over time. I stopped using the CAT4101 because it bakes itself so easily. I felt like I was spending more time testing and replacing CAT4101 drivers than playing with new projects, which was frustrating to say the least. So far I've not had any failures on LM3409s though I really don't like soldering something that fine. I'm thinking my next version might use the PDIP package.
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