Cereal_killer is asking about PB3 (MCU pin 2). The pad is a 0805 and itās there for the offtime cap. When used with the ontime firmware this is also called āStar 4ā.
EDIT: Clearly thatās exactly what comfychair said. I was confused about what he said, even though he said it quite plainly. He was correct and I just repeated what he said!
Huh? That's what I said... let me try it this way.
Resistor at pin 2 is for the off-time 1uF/10v capacitor.
Zener diode would go anywhere on the trace from the D1 pad (resistor instead of diode, on a zener-mod driver) and MCU pin 8. Most convenient would probably be to put it between one of the vias and to ground.
My mistake comfychair! You canāt correct someone whoās already right! You said it right, I read what you said wrong. Iāve really gotta slow down.
Ah shouldāa figured that one, Iām literally right in the middle of learning eagle (since this time yesterday) so my brain is pretty taxed right now, thanks guys.
If you're using firmware other than the STAR off-time you can use the pads as jumpers (same thing, they're just bigger)... or as the switch connection for the momentary version.
(I did call it 'resistor' when referencing the pads, that's probably what did it) :)
BLF15DD Version 1.0: https://oshpark.com/shared_projects/V4ua4iuK
I have removed ALL the old Direct Driver 15/17/20 drivers. I didn't even realize that I had been leaving old versions up. The only boards you will be able to get your hands on are the DD, DD-Z, and linear version 1.0 boards now.
Hey guys any of you US folks interested in getting in on a larger digikey order? I need to reup my own supply, Iām looking at ordering a few hundred resistors, 50 input capās and some 13Aās and AOD510ās, Iām probably going to place my order tomorrow, if anyone is interested in getting any of the standard 105c parts and/or FETās please let me know ASAP and we can get it setup to get better prices.
Also getting some neutral XP-E2ās but the first level price break doesnt start till 50pcs (but still only $2.57/pc)
It looks like Iāll need to do some editing on the op. Family reunion has kept me pretty well occupied this week and flying home tomorrow. Iāve been checking in when I could but it didnāt seem like the dust had quite settled on some of the newest ideas. Iāll be working on editing over the weekend but if I miss something please let me know either here or by pm so I can get it squared away.
It's a 'Medusa' replacement PCB for SRK lights. Fully integrated LED and driver. It was done more for shits 'n' giggles (will look 'mad wicked') than anything else but if it works then sweeeeet. Has a direct driven quad array with medium optic (hence why I asked for that quad optic), a single direct driven (albeit lower current) XP-E2 through an optic for throw (or whatever optic is chosen), and a single reflector with RGB XQ emitters for color mixing. If I ever revise the design I'll replace the direct driven XPE2 with an AMC7135 and a UV emitter probably.
I won't be able to fire it up until I get my MCU from tterev3 (on it's way) or my 4 nichia emitters...which I just realized I haven't ordered yet. Sh*t. I have everything else already so I'll start work on the host and beefing up the heat sink this weekend.
been watching mattās videos the last 2 days and Iāve got this, this is a 3ch RGB 22mm driver, itās far from being ready to order, I just wanted to see it in purple.
One important aspect of this driver was for it to allow any of the connections from either side, thats whats with all the viaās.
This will be driving red, blue and green SST-90ās in a light Iām building (Yes I know what they cost [$44/ea], go big or go home right!).