*BLF LT1 Lantern Project) (updated Nov,17,2020)

not sure. I thought it might be in there already, but I tried several click variations up to 12 and didn’t find it.

Wait, I did a quick search and found this” Anduril firmware's "version check" and "safety lockout" feature (Sept 2019 onwards) - YouTube

15 clicks from off.

verified my fw reports 2019 11 29

There have been two since 11/29. I dont know what the changes are but I suspect one of them enables C to C charging. The wires were long enough and I flipped over my driver my driver to flash 2020-03-18.
Took all of 5 minutes but it was a little off putting when Sofirn comes in here and states you only have to ask for the latest and when you ask you still dont get it.

But its more than that I have not had Sofirn get a single order right all year.
I ordered a SP10s w/batt and charger, did not get the batt and charger.
I ordered Q8 Anduril I received the older style Q8 with the flats on the body and Narsil UI.
Do they even bother to do more than glance at the orders?
I do appreciate the great lights at great prices, that’s why I keep giving them my money but for gods sake will it cost them money to get it right?

I’m not 100% sure, but I doubt any fw update will change the way the light charges I don’t believe any pin on the controller interfaces with the charger chip. I’ll happily accept correction on this opinion.

we are late march now… where is the 3rd batch :disguised_face:

No. The firmware is completely unrelated to C-to-C charging. That’s entirely a hardware matter, and cannot be affected by firmware on the attiny85.

As for firmware though, some changes relevant to the lantern are:

  • 2019-09-24: Added version check function (15+ clicks from off), and an automatic ramp-down if button is stuck.
  • 2019-09-28: Added automatic lockout if button remains stuck long enough.
  • 2019-10-02: Increased brightness of LT1’s muggle mode ceiling.
  • 2019-11-18: Added SOS mode.
  • 2019-11-19/20: Rewrote interrupt handling system to fix several infrequent issues like occasionally missing a button click while asleep. This also changed how it handles electrical noise conditions, by making it attempt to boot normally after an error instead of staying in a blinking error mode.
  • 2019-11-29: Adjusted LT1 tint ramping brightness correction formula (was using measurements from a prototype, adjusted to match people’s reported values for production units).
  • 2019-12-03: Adjusted LT1 tint ramping brightness correction again, based on more accurate measurements. Should keep power use and brightness closer to flat while changing the tint now.
  • 2020-03-16: Rewrote all ADC-related code. Almost no effect on the lantern though; basically it should just make voltage readouts more stable.
  • 2020-04-13: Recalibrated internal timing loop; time-based functions like strobe and beacon should be a little more accurate now.

There were lots of other changes too, but not relevant to the lantern.

Seeing as how colored versions are now problematic due to constraints, here I am voting again for focusing on adding the powerbank feature. Seems a waste to lug around 4x18650 and not be able to dip into those power reserves if light is not needed in a particular situation. Nitecore and Fenix both have lower priced lanterns with powerbank features so shouldn’t too much of a stretch. Thanks again!

Just to verify, its the 3.18.2020_BLF Lantern file here correct?

Yes, that one should include all the changes up to 2020-03-16.

nick779 3.18.2020_BLF Lantern, is the file I used.

I am interested in the C to C charging.
I’m not up to scratch on this tech but that sounds to me like power bank functionality.

I intended to comment yesterday but forgot:

“Thanks for the link. I ordered two.”

Finally pulled the trigger on this. As a diehard camper (many times solo), I’m really looking forward to receiving this.

Currently I have a Coleman propane lantern (large, delicate, propane is bulky, noisy), a Coleman LED 4xD battery lantern (large, batteries suck, cold white), and some cheap Amazon 4xAA (bare cold white LEDs makes for extremely harsh light).

This should blow them out of the water!

Awesome. Thanks for creating this light man! We’ve been using it almost every night on its lowest brightness mode when we’re watching movies. It’s nice to be able to see our snacks and find the remote when needed.

Are you guys ordering with or without batteries? I’m ordering mine this morning.

I plan to order with batteries, four batteries for an extra $10-$12 is a deal.

I had plenty of batteries around when I ordered mine, so I ordered without. But the deal with batteries is good if you need them.

C to C

I don’t know if I know what it means but here is what I observed.
I acquired a C to C cable, a C to lightning cable and a C charger.
My wife has an android phone with a C connector I have an apple.
I tested each device with higher and lower state of charge than the device connected to it.
With the C to lightning connector no matter which device was higher or lower no current would pass between the iphone and the LT1.
With the C to C cable between the LT1 and the android phone the phone would always charge the lantern no mater which device had the higher state of charge.

The lantern does not act as a power bank. It doesn’t charge other devices. The lantern’s USB port is meant only for charging the lantern.

I understand that but the there was some talk earlier in the thread about powerbank functionality in a future iteration.

Then there was this from a Sofirn Rep.

Not knowing exactly what this meant It got my wishful thinking up. So I decided to do some experiments of my own to determine what it meant if anything.

It just means the new batch is compatible with charging cables that have a USB-C connector on both ends.

ordered mine without batteries. purchased 4 Samsung 35Es (protected) that will be dedicated to the LT1.
while the included ones i’m sure are of good quality, i want max run time.