Sofirn SC21 mini

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gchart
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Adair21 wrote:
Here’s the hex file the I dumped. The version readout was 20210113.

It’s possible it’s using the sp36 firmware. Are fuse values still a thing on the attiny1616? Maybe something like CKDIV8 is making the ramp slow. I’ve had that issue with Lume1 drivers in the past. Any tips on changing fuse values using pymcuprog?

Edit: oops, I replied without checking for thread updates first. Glad it’s working!

Fuses are still a thing, but most of the settings can be done in firmware and don’t need manually setting if fuses. BOD (brown out detection) is an exception, but that wouldn’t affect ramp speed.

My thread here has some info on doing fuses with pymcuprog.

Could you try my hex file here? I would check your tk-attiny.h file too. At some point I changed between 5 MHz clock and 10 MHz, so it’s possible that it might be using an old setting.

jon_slider
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Adair21 wrote:
1. wire up the programmer to the light
first speedbump

How do I connect programmer pins to flat driver pads?

anyone have a photo of the operation?

thanks

Adair21
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jon_slider wrote:
Adair21 wrote:
1. wire up the programmer to the light
first speedbump

How do I connect programmer pins to flat driver pads?

anyone have a photo of the operation?

thanks

You would have to solder wires to the pads or create your own pogo adapter

jon_slider
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thanks for the roadmap and info

Sari33
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Adair21 wrote:
Sari33 wrote:
How much is the driver size? I would try upgrade on sc31pro host

The driver is 19mm, but I don’t see the point in swapping the driver when it can be flashed to Anduril 2.


the points are that Sc31pro driver haven’t regulated output, work with pwm and provide too much current for 3535 Leds at high modes. If I’m not wrong Sc21mini is regulated, no pwm and 1000lm max. Enought for lh351d or 519a powered by 18350 cell
SammysHP
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Sari33 wrote:
the points are that Sc31pro driver haven’t regulated output, work with pwm and provide too much current for 3535 Leds at high modes. If I’m not wrong Sc21mini is regulated, no pwm and 1000lm max. Enought for lh351d or 519a powered by 18350 cell

I’m pretty sure the SC21 Pro driver is direct-drive as well. That small battery can’t provide a high enough current to damage the LED. Zeroair measured 2.5 A maximum.
jon_slider
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Sari33 wrote:
Sc21mini is regulated
afaik, it is only the SP10 Pro driver that is sold separately.

IF you can buy the SC21 Pro driver (not SC21 Mini), I hope you try it and let us know if it works better for you.

SammysHP wrote:
Zeroair measured
fwiw, that review is not for the Anduril version of the SC21…
Verodin
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Very much looking forward to seeing the results of getting Anduril 2 running on these!

As for regulated/non-regulated output. here’s my output measurement of the pro using ceilingbounce in case you missed it: https://budgetlightforum.com/comment/1858265#comment-1858265

supreme
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Is this Anduril 2? If so, can someone ask Sofirn to reflash or use this going forward? anduril.2021-08-31.sofirn-sp36-t1616.hex

SammysHP
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Why? That’s a pretty old version.

supreme
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I haven’t kept up with Anduril firmware for all the various lights. Hence the if so part of my post.

Since it doesn’t seem to be Anduril 2, we will have to wait for someone to compile one. At least we know anduril.2021-08-31.sofirn-sp36-t1616.hex can be used to create an Anduril 2 firmware since Sofirn seemed to use their own version for this light

Adair21
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supreme wrote:
I haven’t kept up with Anduril firmware for all the various lights. Hence the if so part of my post.

Since it doesn’t seem to be Anduril 2, we will have to wait for someone to compile one. At least we know anduril.2021-08-31.sofirn-sp36-t1616.hex can be used to create an Anduril 2 firmware since Sofirn seemed to use their own version for this light

I think what SammysHP is trying to say is that Sofirn should be using anduril.2021-12-13.sofirn-sp36-t1616.hex since that is the latest official build of Anduril 2 that will work

containerfan
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gChart, any chance that you could design a Programming Key for the SC21 Pro? If I understand correctly, it only needs three pins, but the key has to be five pins wide: (GND) (VCC) (blank) (blank) (UPDI). Too bad Sofirn didn’t put them together so that your UPDI key could be used.

supreme
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Adair21 wrote:
supreme wrote:
I haven’t kept up with Anduril firmware for all the various lights. Hence the if so part of my post.

Since it doesn’t seem to be Anduril 2, we will have to wait for someone to compile one. At least we know anduril.2021-08-31.sofirn-sp36-t1616.hex can be used to create an Anduril 2 firmware since Sofirn seemed to use their own version for this light

I think what SammysHP is trying to say is that Sofirn should be using anduril.2021-12-13.sofirn-sp36-t1616.hex since that is the latest official build of Anduril 2 that will work

I’m confused now

Adair21 wrote:
This entire time I’ve been trying anduril.2021-12-13.sofirn-sp36-t1616.hex and getting the slow ramping, but I just tried anduril.2021-08-31.sofirn-sp36-t1616.hex and it works!!

So it seems the latest Anduril 2 works but has problems?

Adair21
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supreme wrote:
So it seems the latest Anduril 2 works but has problems?

Look at post #207. I improperly erased the MCU and that was causing some odd issues. The latest Anduril 2 build works great after I did a factory reset.

supreme
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Who do we contact at Sofirn to see if Sofirn can use this build for future lights?

SammysHP
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supreme wrote:
Who do we contact at Sofirn to see if Sofirn can use this build for future lights?

Please no, there are more recent versions and Sofirn should talk to a dev (ToyKeeper) first.
Verodin
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SammysHP wrote:
supreme wrote:
Who do we contact at Sofirn to see if Sofirn can use this build for future lights?

Please no, there are more recent versions and Sofirn should talk to a dev (ToyKeeper) first.

Haven’t kept track of changes, but are there any fixes/additions that apply to the SC21 when using a newer version? If not it won’t matter using an older version.
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Don’t recall if this was mentioned earlier; the TIRs Convoy/Simon sell for the S2+ also fit wonderfully in the SC21 without the glass lens and emitter gasket just as they do in the S2+. The head will screw down more for those who don’t need the warning label to line up Glasses

I grabbed a random beaded TIR from my stash, probably a 15deg, and honestly wish this were an option from factory, it’s great.

jon_slider
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DarkShot wrote:
Great info! Congrats and thanks

fwiw, I just tried it, and no go: (maybe cause dedomed)
.

darosk
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DarkShot wrote:
Don’t recall if this was mentioned earlier; the TIRs Convoy/Simon sell for the S2+ also fit wonderfully in the SC21 without the glass lens and emitter gasket just as they do in the S2+. The head will screw down more for those who don’t need the warning label to line up Glasses

I grabbed a random beaded TIR from my stash, probably a 15deg, and honestly wish this were an option from factory, it’s great.

!{width:50%}https://i.imgur.com/fZsVmVe.jpg!

Awesome to hear! Thanks for sharing

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jon_slider wrote:
DarkShot wrote:
Great info! Congrats and thanks

fwiw, I just tried it, and no go: (maybe cause dedomed)

Apologies, I was mistaken; the TIR was likely a 45 or 60 deg beaded TIR, one of the jobbies listed here: https://www.aliexpress.com/item/1577614278.html

I just tried the 10 and 15 deg TIRs and the beams were rather lackluster as you’ve shown, I’m also using a DD 519A.

Took some more images comparing the stock reflector with the Convoy beaded TIR

https://imgur.com/a/hUoT0nb

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DarkShot wrote:
I just tried the 10 and 15 deg TIRs and the beams were rather lackluster as you’ve shown, I’m also using a DD 519A.
thanks,

glad to hear the 45 degree works better w the dedome 519a, than the narrower beams..

much appreciate you providing the link, I went ahead and ordered a few different Tir to test..

Yngvej
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New flashaholic here. I’m new to this hobby. I started out with a Nebo Torchy (wich is dangerous when you tend to walk around with ferrous metal shavings in your pockets), advanced to the SC21 5000k and just added a SC21 pro to the collection.

I flashed my light with anduril.2021-12-13.sofirn-sp36-t1616 according to Adair21s instructions. I soldered to the pads and used an FTDI breakout board, two resistors and a diode on a bread board for the flashing.
At first I had slow ramping. After a factory reset it started ramping normally.

Fiddeling with my light, I found out that the bezel isn’t glued (seems like they have skipped the glue on the green versions.)

That led me to order some TIR lenses from Convoy to do some experimenting.

At the same time I ordered an 2700k S2+ LH351D (I also have a 4000k SP36 BLF incoming). Into the rabbit hole I go. Smile

jon_slider
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Yngvej wrote:
I flashed my light with anduril.2021-12-13.sofirn-sp36-t1616 according to Adair21s instructions.
congratulations.. im still working on that goal.. for others interested here is the link to Adair21 instructions

> seems like they have skipped the glue on the green versions

I also had no glue on two green SP10.. a red one required heat to open.

raccoon city
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It's nice to see you, Yngvej!

How do you pronounce your username?

209_milla

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raccoon city wrote:
How do you pronounce your username?

I’m guessing similar to Mr Malmsteen, ie “Eeng-vay”. LOL

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

raccoon city
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Lightbringer wrote:
raccoon city wrote:

How do you pronounce your username?

I’m guessing similar to Mr Malmsteen, ie “Eeng-vay”. LOL

Sweet!

My Norwegian is a bit rusty.  :THUMBS-UP:

Yngvej
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jon_slider wrote:
Yngvej wrote:
I flashed my light with anduril.2021-12-13.sofirn-sp36-t1616 according to Adair21s instructions.
congratulations.. im still working on that goal.. for others interested here is the link to Adair21 instructions

> seems like they have skipped the glue on the green versions

I also had no glue on two green SP10.. a red one required heat to open.

Thanks. The automatic lockout was definitely worth the effort.

raccoon city:
Like Yngwie Malmsteen is the closest pronunciation for english speakers. I belive I read once that he changed from Yngve to Yngwie because no one could pronounce Yngve.

supreme
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I know the D4v2 has different flashing pads. I have been able to flash the D4v2 with Hank’s adapter by simply using a steady hand and holding the pins down on the flashing pads.

Can I build a similar adapter and hold it down on the flashing pads? If so, any guide on how to build an adapter for this light? I wonder what Sofirn uses to flash firmware

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