Okluma TinyDC

[nbp]

Sounds like a similar setup to what Mac was using. Does anyone know if it was the same board? I cannot remember anymore.

Beamshots look good. Nice big floody hotspot, just like I like it. Yay optics! Haha

 

[gunga]

They are all boards based off of amc7135 regulators, so very similar. I think Mac used the variant that maxed out at 2.8A.

 

[gunga]

Note that they both use 8 chips but Mac used older ones with less output.

I believe the controller chip is the ATtiny13 (brain chip). The 8x 7135 chips are linear regulators and control the max current (more chips = more current ).

You can get lots of funky programming in that ATtiny13 if you know how.

 

[Father Azmodius]

Don't say you'll do a copper version. I'm on a copper kick but shouldn't buy anything until I know whether or not we (The CWA) will have a new contract, be working under the old one, or be on strike. Sadly I'll have to put my flashlight purchase in the hands of the negotiating team with that phone company that starts with a V

 

[okluma]

Certainly ... FYI, "4th Star Modes" ( with moonlight - ML / L / M / H ) might be more a more popular setting around here

Alright, this light now comes with 4 modes with memory. ML / L / M / H. The current estimates on those modes are 50mA, 166mA, 475mA, and 2200mA respectively. I can update the firmware on the chip, so if you'd like to do something different just let know when you order the light. Within reason, most customization to the firmware will be free. I'll take new beamshots later tonight since I've added a new mode and dropped the output on high a bit.

 

[gunga]

Moonlight needs to be a lot lower. Think 10mA. Maybe less. Or just call it low.

 

[nbp]

Moonlight needs to be a lot lower. Think 10mA. Maybe less. Or just call it low.

I'll defer to Gunga's expertise, lol.

PP incoming for # 2.

 

[okluma]

Moonlight needs to be a lot lower. Think 10mA. Maybe less. Or just call it low.

Ok. I want moonlight, and it sounds like everyone else does too. Dropping it down should not be an issue. I'll see what I can do, and update the original post accordingly.

 

[gunga]

I'll try to post some numbers with approximate levels if I can.

 

[nbp]

Something like .2 lm, to me, is a nice moonlight, IMO. But I'm not super fussy. Then maybe 10, 75, 300. Just rough estimates. That's about where my Tri EDC is and it's nice.

Btw, is Okluma TinyDC the official name? Any significance to TinyDC? My brain is cooked this week so if it's obvious, forgive me. :duck:

 

[okluma]

Something like .2 lm, to me, is a nice moonlight, IMO. But I'm not super fussy. Then maybe 10, 75, 300. Just rough estimates. That's about where my Tri EDC is and it's nice.

Btw, is Okluma TinyDC the official name? Any significance to TinyDC? My brain is cooked this week so if it's obvious, forgive me. :duck:

I'll do my best to get the current levels right.

Okluma is the name of my company, and TinyDC is the name of the light. TinyDC is a play on words (or sounds?), with the y also making an E sound. So if you say with a slight emphasis on the y, it sounds like "TinyEDC". It's silly I know but when I thought of it, it made me chuckle a little.

 

[nbp]

Nah, it's not silly, it's just fine. I was simply curious.

You should see some of the stupid names people give to other flashlights! Especially those who do not give much thought to how they will sound to native language speakers. Not everything translates!

 

[gunga]

Some approximates with

1 LED
OTF, Nichia 219A

4 mA = 0.1 lumens
8 mA = 2-3
80 mA = 22
300 mA = 80
1200 mA = 240

These were my last levels for a haiku build.

 

[gunga]

My levels won't be too relevant so email sent with suggestion.

 

[KITROBASKIN]

Great to see your work. Your nomenclature is interesting. I'm just wondering if your name is pronounced O-K-Lumen, or something like Oak-Lumen?

 

[badtziscool]

Great to see your work. Your nomenclature is interesting. I'm just wondering if your name is pronounced O-K-Lumen, or something like Oak-Lumen?

Or maybe Oklahoma Lumen? Would make sense since he's located in OKC, OK. Or maybe it's pronounced Oh-kla-lu-ma.

 

[okluma]

Or maybe Oklahoma Lumen? Would make sense since he's located in OKC, OK. Or maybe it's pronounced Oh-kla-lu-ma.

Initially it was OKLumen. I wanted some combination of Oklahoma and lumen. One of my friends suggested Okluma. I liked that because it reminded me of Okuma, the company that makes lathes and mills. We think it's pronounced "Oh-klu-ma", but my wife likes "Oh-Kay-Luma". Who knows? Again, it makes me laugh a little.

The current for the different modes is fixed. We're going with 2mA / 30mA / 180mA / 1300mA. We've got a real moonlight mode now. I'll update the original post accordingly.

 

[gunga]

Is the memory on-time, off time?

 

[okluma]

Is the memory on-time, off time?

On-time memory.

 

[nbp]

Looks ok to me, I think. I'm getting mine w/o memory.