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

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pol77
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It seems the programming pads are actually numbered 1-8. The way they are number indicates that they are a direct mirroring of the attiny85.

This is the pinout:

Of course, the chip can be easily programmed by removing the 2 screws and using a SOIC clip directly on the chip. As a matter of fact, the new driver has more clearance around the chip and is easier to programme that way.

What I want to know is, without the pads to control output, what is the output of the new driver? Have they removed the extra chips or are they connected by default?

Regarding UK VAT and AliExpress, I had not noticed! Horrible behaviour towards their customers!

madcrow
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whitecitadel wrote:
…was surprised when manual mentioned power bank…

You received a manual for the updated model? Lucky you Big Smile
Would you mind posting a photo of it?
I also bought the new, powerbank-equipped model, but no manual was included with it.
Of course I can get by using experience, common sense and Lux’s LT1-Andruil2 graphic manual. But I am still curious if Sofirn’s original document holds any extra info…

whitecitadel
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The Reddit link above shows all the drivers still, it does seem brighter than my existing one, assume all connected all the time?

Can take a photo of the manual, but your not missing anything madcrow it only covers basics and muggle mode

whitecitadel
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Sofirn Manual received with the latest version:

Back Page:

Lux-Perpetua
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I am working on a new Andúril 2 manual (for LT1) already. Unfortunately, some last information on the configuration defaults for the new LT1 have arrived on very short notice. Moreover, I need to be careful not making a whole bible with too many pages. Facepalm

I still hope for these two models (wishful thinking, of course):

LT1R - three-channel version (deep red - 2700K - 5000K)

LT1Max - 4-6x 21700 with PD charging (12V 3A), significantly larger head and > 1.200lm

whitecitadel
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I’m hoping more the other way with the lt1 mini…

roostre
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Lux-Perpetua wrote:
I am working on a new Andúril 2 manual (for LT1) already...

Lux-Perpetual,

I can no longer access the PDF files for the Sofirn and Wurkkos Manuals that you had previously shared using Google Drive.

I receive "Error 404" when I try to access them which states "The requested URL was not found on this server".

Are there new URLs for the manuals or are they not being shared anymore?

Thanks, the PDF manuals were very helpful to me since I could magnify them on my device and easily read them compared to the tiny text of the printed manuals included with the lights.

How many flashlights does a "real man" need?

None, real men are not afraid of the dark.

flightless22
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roostre wrote:

Lux-Perpetua wrote:
I am working on a new Andúril 2 manual (for LT1) already…

Lux-Perpetual,


I can no longer access the PDF files for the Sofirn and Wurkkos Manuals that you had previously shared using Google Drive.


I receive “Error 404” when I try to access them which states “The requested URL was not found on this server”.


Are there new URLs for the manuals or are they not being shared anymore?


Thanks, the PDF manuals were very helpful to me since I could magnify them on my device and easily read them compared to the tiny text of the printed manuals included with the lights.

Googles fault

https://www.bleepingcomputer.com/news/google/a-google-drive-security-upd...

Fescron
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Lux-Perpetua wrote:

I still hope for these two models (wishful thinking, of course):


LT1R – three-channel version (deep red – 2700K – 5000K)


LT1Max – 4-6× 21700 with PD charging (12V 3A), significantly larger head and > 1.200lm

Same Innocent

Lux-Perpetua
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Sorry about the broken links to those many manuals. It seems something got completely f#%&€d up with my Google drive. Facepalm I try to restore everything when I find some time for it.
roostre
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Lux-Perpetua wrote:
...I try to restore everything when I find some time for it.

Thanks for the update.

Ideally the manufacturers would have manuals online but many do not. Besides being easier to magnify and read the online manuals, you also do not need to worry about losing the paper copy that came with the light since you can print the online manual if necessary.

Sorry I inadvertently spelled your name wrong, "Lux-Perpetual" instead of "Lux-Perpetua" but "Perpetual" does better describe your never-ending exceptional contributions to this forum, especially the detailed well-written manuals which will be everlasting.

How many flashlights does a "real man" need?

None, real men are not afraid of the dark.

xevious
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whitecitadel wrote:

I “accidentally” bought one of the new ones, order a second LT1 in orange and was surprised when manual mentioned power bank and that it has a new driver when I opened it.

As noted already, no pads to control output.

Programming pads are totally messed up, I have oshpark pcb with pogo pins and had no idea I was getting an LT1 I could not program Sad

UK comment: Ali steals the tax! They charge the VAT citing Brexit but under declare the value on shipping and don’t pay the tax. I prefer the old way where no one pays the VAT


So does this mean that this new LT1 version cannot be programmed with any Anduril updates?
Btw, can the LT1 original be updated to Anduril 2.0? I understand the power bank feature wouldn’t work…
Bob_McBob
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Has anyone opened up the new version to confirm there are no further changes internally? I would hate to get the new one and not be able to install the Sunlike MCPCB for example.

will34
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I’m curious about the output of the “new” LT1. Can anyone confirm if the 7× 7135 are factory enabled and can it maintain full brightness throughout the entire runtime without having to step down due to heat?

DBSAR
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Sorry & my appologies to everyone, things have been a bumpy road getting settled in the new house and trying to get back on track. I will be doing my best to get back into working on the LT1-Mini, a 21700 LT1-HD, (or LT2 model) and possibly a LT1-AA variant as Barry mentioned. Bear with me, its been a rough past couple years with the pandemic, big move, life changes, etc.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Sunnysunsun
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Bob_McBob wrote:
Has anyone opened up the new version to confirm there are no further changes internally? I would hate to get the new one and not be able to install the Sunlike MCPCB for example.

This shouldn’t be an issue since the updated LT1 still has two channels. I’m not sure what has been going on lately with BelMor, I hope everything is alright with him he is still on track to delivering our boards.

cm64
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It seems to be a bit confusing as to what Sofirn is actually selling when you buy a LT1.
There seems to be 3 or 4 different versions on sale at the different outlets. ie Sofirm, Amazon & Aliexpress official Store..

Sg3707
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cm64 wrote:
It seems to be a bit confusing as to what Sofirn is actually selling when you buy a LT1. There seems to be 3 or 4 different versions on sale at the different outlets. ie Sofirm, Amazon & Aliexpress official Store..

Absolutely right and this new version with out any name change causing further confusion.

Bob_McBob
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I’m quite bothered by the unilateral “updates” by Sofirn considering this was a community light. Altering the flashing pads in that manner is just a dick move, but changing the default 7135 configuration from 3×7135 to 7×3135 while removing the ability to alter it is quite significant and DBSAR should have been consulted.

RichH
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whitecitadel wrote:
UK comment: Ali steals the tax! They charge the VAT citing Brexit but under declare the value on shipping and don’t pay the tax. I prefer the old way where no one pays the VAT

Ahh, but we had some fun, and knew it wouldn’t last forever. Canny Chinese eh? Hat

South Saxon

DBSAR
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Bob_McBob wrote:
I’m quite bothered by the unilateral “updates” by Sofirn considering this was a community light. Altering the flashing pads in that manner is just a dick move, but changing the default 7135 configuration from 3×7135 to 7×3135 while removing the ability to alter it is quite significant and DBSAR should have been consulted.

As far as i know our development team was unaware that modification was done or discussed before hand.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

MtnDon
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How long does a development team have any control over what a manufacturer decides to do with a project?

Coscar
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So ….. has the name changed to Sofrin LT-1 Facepalm Beer Beer

Im not a Pessimist …. just an Optimist with a lot of experience


A little John Prine

Camaro
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Only change I’ve noticed is that the new one is described with a Q8, whereas the old one does not have that descriptor. That may be how they are going to morph the name over time. As far as the unit, looks identical to the original. Will know more when it is delivered.

Lux-Perpetua
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I asked Barry about the relocation of the flashing pads on the new driver. He said he did not know. Maybe it was an engineer‘s decision to align the circuitry on the business side of the driver as efficiently as possible? I keep asking them to provide us a flashing adapter but I do not expect this to happen anytime soon, especially without a standard pin layout.

I was told the new version will have all 7135 chips enabled for maximum brightness. There is no thermal regulation in LT1 but I do not expect this to become a problem as long as ambient temperatures are in a reasonable area. Maybe the top of the lantern will become a bit warmer than usual.

iamlucky13
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MtnDon wrote:
How long does a development team have any control over what a manufacturer decides to do with a project?

For the duration defined in the contract.

I don’t think there is any real recourse here. We have to hope that Sofirn understands why aspects of the light were designed the way they are and keeps them that way.

DBSAR wrote:
Sorry & my appologies to everyone, things have been a bumpy road getting settled in the new house and trying to get back on track. I will be doing my best to get back into working on the LT1-Mini, a 21700 LT1-HD, (or LT2 model) and possibly a LT1-AA variant as Barry mentioned. Bear with me, its been a rough past couple years with the pandemic, big move, life changes, etc.

It’s great to see an update from you…and the possibility of other interesting variants!

But most importantly, I hope things are genuinely settling down for you finally.

DrBashir
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New to BLF, flashlights and lanterns. I thought I ordered the newest powerbank version from the sofirn website. Did I end up with the right thing?

SammysHP
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What the… Another version?! What are they doing?! At least it makes more sense than the previous version.

Sunnysunsun
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What in the world? There will soon be more LT1 variations than FW3A variations.

We had the original, the one that supports type C-C, the new one with screwed up pads and powerbank out, and now this one with pads but without the POT.

I’ve also seen this one which implemented a red channel but was never made, I assume due to them lacking the code

madcrow
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DrBashir wrote:
New to BLF, flashlights and lanterns. I thought I ordered the newest powerbank version from the sofirn website. Did I end up with the right thing?

Unfortunately this is most likely an in-house (á’la Sofirn) variant of the classic version (i.e. no powerbank feature).
The only other place I’ve seen this design is an Aliexpress feedback entry from a Moldovan guy here from 05 Jul 2021 12:17.
And as you can see from both the product description and price of that Aliexpress listing, it is pretty clear that it is referring to the classic version.

I have the power-bank-equipped variant and its driver looks like the one in the orange lantern here.
Of course, in theory, yours could be just another layout design around the same components, but it is unlikely, as the bottom layer of your driver PCB is rather suspiciously missing the very distinctive, rectangular grid-pattern of the thermal vias of the thermal pad of the powerbank controller IC. (The central, copper-colored rectangle with holes in the new, PB-equipped driver). Which indicates yours does not have such an IC. (Or if it does, they completely screwed up its thermal design Smile )

If you want to approach the question from a more practical angle, I can recommend three things:

  • If you have batteries and a Type-C to Type-C cable and a suitable USB device to be charged, then just plug them together and see what happens Smile
  • If you don’t have all of the above, only the batteries and A-to-C cable, then start charging the lantern, and watch the indicator LEDs. The TP5100 charger IC of the old design lights up the charging LED constantly. On the other hand, the IP5310 power-bank controller blinks it at 0.5Hz. I am intentionally not writing about LED colors, because there is no way for me to know what color LEDs Sofirn was using for what purpose in your case. Long story short: if your charging LED blinks, you probably have the PB feature, if it is constantly lit, you probably don’t.
  • Unscrew the driver, take some pictures of its top side with all components markings visible, and send it here. If you do that, I’ll be able to tell you if you have the BP feature or not with absolute certainty. Hope it helps!

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