Fireflies ROT66 Flashlight

The MF01 219C v1 (6 wires) is more one the rosy side than the MF01 219C v2 (2 wires) that is more on the yellow/green side. If I remember well, charles lin’s MF01 is a v1, both of yours are probably v2.

If the aux led board was offered with more emitter color choices, it would be a certain hit. Many people didn’t like that Emisar only offered the cyan ones. This would have been a opportunity to set your stuff apart.

Yes please, amber secondary would be much more useful than blue.

Fireflies, can you post some photos of the board itself and installation procedure? Does the firmware of older lights support it properly?

I’m ocd and it kinda bugs me that the emitters on the side switch aren’t the same color of blue as the gitd strip. Aux LEDs could alleviate that I guess but I like the subtle glow and color of the gitd strip.

Talking about tiny amber smd leds, has anyone found a version yet that is a phosfor-converted amber? (so more efficient than direct amber leds) I have several PC-amber leds in powerled version but have not seen them in tiny format.

Good question. If not though, I should have Anduril working on the ROT66 soon, and it can run aux LEDs in four different modes if compiled with that option.

+1. I want amber and pink/purple aux lights to match the 219B 9080.

What modes are those?

Too bad I don’t know how to flash the driver. Sigh…

Would be good if Fireflies can include Anduril in the next batch. :wink:

Lexel doesn’t support Anduril so it’s not likely to happen.

The modes are the same as in the D4S:

The aux LEDs are only active when the light is off, or locked, and each of these two “off” modes can be configured to operate in four ways:

Off
Low (~0.03 mA)
High (~0.90 mA)
Beacon (high for 0.5s, then off for ~3.5s, then repeat) (avg ~0.11 mA)

I think there’s a good chance of Anduril or something Anduril-like on a Fireflies light, since they’re looking for something like NarsilM but simpler.

I’ve got it running on a ROT66, as of about an hour ago, but I’m not done calibrating things yet. Gotta get the ramp shape fixed and the voltage calibrated, etc.

However, with a 3-channel driver and a switch LED, Anduril compiles just a few bytes too big to fit when I have all the options enabled. So for now I turned off the option for a blinking switch LED. It’s a little awkward anyway, with the arrangement of two always-on LEDs and two which can turn off.

Long-term though, I hope I can reduce the base code size a little bit so it’ll fit.

Has anyone received an XP-L version that was intact and working as advertised?
I have one en-route and am a bit fidgety about accepting the delivery.

Yeah, they would need your help to do it because I don’t think Lexel wants to mess with a new UI.

I’m guessing all Firelies needs is a good working version of Anduril from you and they can send it to their people flashing the drivers.

On a side note, does the aux board wire into the same spot as the MCU controlled switch lights? So you set both sets of lights off, low or high?

I’m guessing yes? The pin layout is pretty full.

           ----
   Reset -|1  8|- VCC
 eswitch -|2  7|- switch LEDs
     FET -|3  6|- Nx7135
     GND -|4  5|- 1x7135
           ----

There is nowhere to attach it except pin 7, which is already driving the switch LEDs.

You aren’t guessing. Lol

Okay, I just wanted to make sure you didn’t add a special circuit to the D4S driver or something. I don’t follow that thread so I’m not sure. (It’s growing too fast)

Thanks.

The D4S has a different pin arrangement. It has aux LEDs and still has one pin free to do other things:

           ----
   Reset -|1  8|- VCC
 eswitch -|2  7|-
 AUX LED -|3  6|- PWM (FET)
     GND -|4  5|- PWM (1x7135)
           ----

I got ya. The D4S does not have switch lights so you ran it’s aux board to the “switch light” output. Then, the fact it’s 2 channel (instead of 3 channel on the ROT66) means you have one leftover pin free.

Cool, cool. :cowboy_hat_face:

Beam distance XPL?, Thanks!

As I do not have a ROT66 myself I can only post that I have first Aux board in my GEN3 tail setup finished and limited supply of LEDs and PCBs to make more as it was just first prototype of theese board design

basically the same as usual each LED has its own balance resistor so any combinations are possible

here just 2 rings in same color (ice blue and pink) that are dimable indipendantly with two trimmers,
the central 4 LEDs show low battery warning, the threshold voltage can be set as you wish with a resistor value swap
red for low battery has also its own brightness adjust trimmer, also any other color combination possible if you dont want red for low battery indication

right next to it my new D4S board also in Generation 3 here no circular pattern the trimmers are making a cross around the 4 LEDs

LVP shuts down all LEDs at the 2. threshold level, tested down to 3V, below that the LDO falls out of regulation and it stayes off until battery gets high enough above the hysteresis

Fireflies should have its own first prototypes tested right now but will very likely only bring only a blue and red for low battery variant with next batch

I’ve been away for some time so missed this, which is really interesting.

1: How do I buy one ? and from where ? preferably at a BLF price.

2: Who are Fireflies, what is the track record, is this a skunkworks project for somebody I know of ? (like Sofirn/Thorfire)

3: Clearly the BLF gurus have been involved in the development and are continuing work. Any background info would be welcome (PM if necessary).

It does look very nice.

Cool stuff, Lexel! :slight_smile: