Sofirn SC21 mini

Thank you for my homework reading list… much appreciated.

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.

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.

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

thanks for the roadmap and info

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.

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.

fwiw, that review is not for the Anduril version of the SC21…

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: Sofirn SC21 mini - #161 by Verodin

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

Why? That’s a pretty old version.

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

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.

I’m confused now

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.

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.