So I finally figured out the best way to utilize the special modes of Anduril. So I thought I would share. Very warm 1800k and crisp 6500k both are 90 CRI. You are responsible for assembly and programming. It is made to the standard BLF driver layout with 7135s, sorry no FET.
FWIW, if you want to use 1800K and 6500K on the same board, the lantern branch supports tint mixing.
I haven’t added the dynamic / automatic tint mixing yet though, where it gets cooler when it’s brighter. That’s a task for later when I have actual hardware to test.
From one extreme to another. Two opposite builds announced at nearly the same time. We are a lucky bunch here. Also looking forward to your build staticx57.
Intriguing, I originally envisioned the 6500k as a “turbo” mode but now that you have made tint mixing easy, I might have to try it too. Perhaps there should be a second version of this with equal # of 7135 per channel.
I am looking forward to it as well. And of course all materials needed shared here in the hope someone else will build them as well with their own spin on it.
Looks great! Allthough your silkscreen does not match between the battery carrier (negative up) and the ATTiny side (positive up)
Maybe add huge silkscreen + and - inside the battery carrier too.10
Can you upload the full PCB without components?
Some points of concern:
I’m worried that the LEDs may not get enough cooling if the thermal pads are not connected to a big fat plane.
You could go ahead and have a thick plane connected to VCC on both sides. Include the termal pads to that plane and the LEDs will probably get enough cooling if driven by 3x7135.
Thanks, yea it isnt perfect and I could probably spend more time making it slightly better but I just wanted to put it out there. I think ill fix the via as you said and add a few more things to the silkscreen. It looks like you found the Osh link has a number of corrections than the 3D model. It should be 100% functional at this point though if not perfect.
That would be awesome. I don’t think ill make a ton of these, perhaps 6 at most but I am curious to see if anyone makes these and what they make around it. Me? Unfortunately I do not have a 3D printer so I would like to see what you come up with.
FWIW, if you want to make it add and remove LEDs vertically as it flickers, one way to do it would be to use as many power channels as there are pins for, in vertical order, and use a pretty short ramp (or tweak the candle parameters to increase the height of the waveforms). I guess this could only get you three or four vertical sets of LEDs due to how few pins there are, but it wouldn’t require much change in the code. Mostly just a change to the ramp tables and some other hardcoded numbers.
The overall effect would be to add and remove LEDs (or sets of LEDs) according to brightness, with the topmost active set changing in brightness to indicate in-between levels.
