Emisar D4S review

DB Custom: what is the Hank’s FET? Maybe the Lexel’s one would be even better?

There are also 2 efficiency tricks that I haven’t seen tried (and measured):

  • glue TIR and glass together with optical adhesive to eliminate reflections on the boundary
  • paint the head, bezel, PCB white on the inside to turn some losses into flood.

Pretty sure Lexel recommended the FET Hank used. Infineon I believe it is. It’s not very much better than the 404 but it is slightly more output, only about 200 total lumens but hey, when you’re chasing em you chase ALL of em! :slight_smile:

Optical adhesive, tricky stuff that. How are you going to set it? The lens blocks UV, the optic material blocks UV, can’t get UV light deep enough between the two to set the adhesive…

Paint the interior of the head with what, oven paint? Mine gets HOT! :stuck_out_tongue: (got some 80 Watts going in this smallish light)

Each state gets an argument passed where you get the count how long (ticks) you are in this state.
I think you are free to add it with a new compiler switch and upload the changes for TK to merge into Anduril.

What options are there to increase storage capacity?

There are adhesives that don’t need UV curing.

This one is easy. Heater paint.

Use another microcontroller.

But there are a few problems with that:

- The Attiny85 is the biggest SOIC-8 ATtiny

- Small size

- Hand-solderable for DIY (so certainly no BGA and probably no QFN)

  • Need to port existing firmware too it

I did a short search for matching ARM processors, but I couldn’t find a good and cheap replacement. Biggest hurdle is the package as there are small MCUs but they are made for industrial soldering processes or just hard to do at home (QFN, BGA, WLCSP, …)

I’m not criticizing or even trying to imply I know more, just trying to suggest something from the way I see it… I have limited experience in C/C and I know what a finite state machine is because I’ve wanted to create one for ages. I am not a programmer, just a programmer admirer.

I just had this idea that the flashlight might be able to figure out if the user intends to turn it off or to change the brightness based on simply considering how long it’s been since the button has been pressed (>5 seconds kind of thing). I wasn’t trying to say that anything wasn’t good enough. Sorry if I offended anyone.

Short vid taken with my D4S in Anduril’s lightnimg mode.

It is also the same FET that’s used in the GT Mini BSC009NE2LS

https://www.digikey.com/product-detail/en/infineon-technologies/BSC009NE2LS5IATMA1/BSC009NE2LS5IATMA1CT-ND/6564426

I believe DEL actually found the Hyperon/Infineon MOSFET, according to the PM’s I got from TomE back in 9/1/17. At that time Lexel was using the (edit) SIR800.(not SIR404)

https://www.arrow.com/en/products/bsc009ne2ls5atma1/infineon-technologies-ag

I’m not sure how many people here are into photography, but with those settings you either have a very good camera or a very bright light. :smiley:

I have an Apple i8, with an app that lets me control the camera manually. :wink:

And I have a very bright light. Or two…

For comparison purposes,

i8 at f/1.8, 120th of a second exposure at ISO 32. 4 times faster shutter, for a light that’s in the 20,000 lumens category (triple XHP-70.2 pulling 48A at the tail)

That is how the initial activation works from off. It may turn on at the requested level immediately, but it doesn’t actually change state until the timeout happens, in case there are more button presses coming.

I considered doing an immediate off depending on what the user had been doing recently… but it didn’t work well. It’s common that I’ll have a light on for a while and then want to turn the brightness down, which is done with a click-release-hold action (ramp down) or a hold-release-hold (ramp up then down). And it’s common that I’ll be taking a walk with the light at a steady level, then want to go to turbo for a moment, without turning the light off first. So, simply being idle for a while does not signal intent to turn off at the next click.

Intents are more useful in more complex systems with more interconnected state graphs. Like, when it’s possible to reach any state from any other state, there will be some types of traffic patterns which are more common than others. Intents are like studying the dirt paths across a lawn to figure out where to build sidewalks. But Anduril doesn’t have an interconnected-enough graph for the concept to be very applicable.

Don’t be afraid to share ideas. That’s the whole point of this forum. :slight_smile:

Bigger MCU with more space and more pins and probably less hobbyist-friendly soldering requirements.

However, Lexel made a standardized 6-pin connector for flashing drivers without having to remove them, so bigger MCUs should be much more feasible in the near future. We’ll probably end up trying bigger AVR controllers like tiny841, tiny1634, tiny1617, etc.

The main reason a bigger MCU is needed is for more pins, like if a light has two switches and three indicator lights. Otherwise, the extra ROM is only somewhat useful. There’s still plenty of space in 8K for new hardware features, if I remove some of the extra modes and stuff I added for fun.

The other immediate use for a bigger MCU is to get USB and I2C connectivity, for talking to a computer or to an onboard powerbank circuit. With a portion of ROM dedicated to a special bootloader, reflashing could be done with no specialized hardware at all. Mix and match your favorite hardware with your favorite interface.

Question for the group since I haven’t been able to read the whole thread - are the anduril modes standard on the D4S or do I need to flash the firmware?

flash

I got my maukka calibrated lights. D4s xpl hi 5000k is 4700 lumen @ turn on. Just some info…

Got my grey D4S XP-L HI 1A and find it displays my sorta-white wall more true than my XP-L HI 3A to my old eyes.

After our flood in 2011 we had a lot of work done including painting. My wife picked a very pale light beige labeled “Peach Sorbet.”
Well, the lil bantam rooster contractor hired by our restoration company refused to use anything with that name.
My wife went back to the building supply company and had them relabel everything “Navajo White”….no problemo!

Definitely don’t look at the emitters in lightning mode, don’t ask how I know . . . . :person_facepalming:
fortunately it was only my D4 . . .

Even just thinking about that gives me the urge to rub my eyes.

after the first 10 days (and nights :blush: ) with my new babies I’m still in love !

Nichia 5000K, XPG 4885K, XPL 4000K, XPG 5700K