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

11715 posts / 0 new
Last post
seery
seery's picture
Offline
Last seen: 1 day 9 min ago
Joined: 12/23/2015 - 12:31
Posts: 102
Location: USA
tjlantern wrote:
One thing I have noticed is when the latern is OFF there is a very very faint glow from 4 LED’s. Is this able to be turned off ?

Our LT1 did the exact same thing.

I emailed Sofirn but they never replied, so we just sent it back to Amazon (Prime).

cabshank
Offline
Last seen: 1 week 4 days ago
Joined: 11/19/2019 - 20:00
Posts: 59

SR-G wrote:
By the way … can someone confirm me if the base tube (containing the 4×18650) of the BLF LT1 is compatible with the BLF Q8 ?

I have the sofirn Q8 and the BLF LT1 and they fit each other normally Smile
SR-G
Offline
Last seen: 2 months 3 weeks ago
Joined: 05/13/2019 - 08:33
Posts: 8
Location: FRANCE
cabshank wrote:
SR-G wrote:
By the way … can someone confirm me if the base tube (containing the 4×18650) of the BLF LT1 is compatible with the BLF Q8 ?
I have the sofirn Q8 and the BLF LT1 and they fit each other normally Smile

Thanks for the confirmation … so i think, if i summarize, that, as there are two flavors of the Q8 (initial BLF Q8 and then the Sofirn Q8 version) :
- The initial BLF Q8 is not 100% compatible, as stated by @Unloco
- But the Sofirn Q8 works flawlessly while exchanging parts

(indeed, i tend to like to have compatible stuff)

Sofirn Q8 :

Sofirn BLF Q8 :

cm64
Offline
Last seen: 12 hours 55 min ago
Joined: 04/20/2015 - 06:42
Posts: 193
Location: Melbourne Australia

Maybe Sofirm could offer these parts indidually.
So if you have an LT1 you could buy a Sofirn Q8 head etc

Old Davo
Offline
Last seen: 2 months 4 days ago
Joined: 08/27/2018 - 06:56
Posts: 49
Location: Australia

Have any Australians been able to get anything delivered? My order was turned back by Chinese customs.

TimMc
TimMc's picture
Offline
Last seen: 1 hour 26 min ago
Joined: 06/26/2020 - 02:22
Posts: 564
Location: Melbourne, Australia
Old Davo wrote:
Have any Australians been able to get anything delivered? My order was turned back by Chinese customs.

Same.
SP40 Green 5300K without battery. “Nov 17, 2020 15:02 EMS China Post Returned”.
Sofirn IF25A 4000K is still in transit.
I contacted Sofirn on AliExpress.
They sent out another SP40 Green.
Then they received the first SP40 from customs and sent another one.
I received two SP40’s. Feeling a bit sheepish. Thanks for the awesome customer service Sofirn. Big Smile

Contact Sofirn? Innocent

Old Davo
Offline
Last seen: 2 months 4 days ago
Joined: 08/27/2018 - 06:56
Posts: 49
Location: Australia
TimMc wrote:
Old Davo wrote:
Have any Australians been able to get anything delivered? My order was turned back by Chinese customs.

Same.
SP40 Green 5300K without battery. “Nov 17, 2020 15:02 EMS China Post Returned”.
Sofirn IF25A 4000K is still in transit.
I contacted Sofirn on AliExpress.
They sent out another SP40 Green.
Then they received the first SP40 from customs and sent another one.
I received two SP40’s. Feeling a bit sheepish. Thanks for the awesome customer service Sofirn. Big Smile

Contact Sofirn? Innocent

I’ve messaged and asked for a refund. So much back and forth to and from facilities. I have no faith in anything getting delivered.

Streamtronics
Streamtronics's picture
Offline
Last seen: 6 days 12 hours ago
Joined: 01/02/2019 - 19:14
Posts: 94
Location: Germany

Is there anyone willing to try my custom 16 bit build of Anduril 2 for the LT1? I'd love to get some feedback on it.

It provides nice and smooth tint ramping and much less tint flickering when dimming at low modes, it's just that the brightness curve is somehow bumpy and I haven't figured out why yet (I actually suspect hardware non-linearities). I haven't seen anyone else do this yet (faking 16 bit on an 8 bit capable MCU).

I can provide a zip with the source code and hex file to anyone interested (I still don't understand how to add my code to TK's firmware repository without considerable effort). 

Sillen
Sillen's picture
Offline
Last seen: 11 hours 21 min ago
Joined: 08/01/2018 - 06:39
Posts: 693
Location: Melbourne, Australia
Old Davo wrote:
Have any Australians been able to get anything delivered? My order was turned back by Chinese customs.

Had an SP36 rpurchased 11.11 returned twice but got here a few days ago.

DBSAR
DBSAR's picture
Offline
Last seen: 2 hours 57 min ago
Joined: 02/11/2013 - 23:28
Posts: 6378
Location: Newfoundland, Canada
angerdan wrote:
DBSAR wrote:
**UPDATE,March,7,2020 Colored versions are still unknown, due to the anodizing factory issues, a shortage of resources at this time.**
Hello DBSAR, what do you know about the shortage of resources at the anodizing factory? How are the chances to get the coloured versions in 2021 ? https://budgetlightforum.com/node/69644

I have not heard anything back from Barry on the colored versions yet.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

SR-G
Offline
Last seen: 2 months 3 weeks ago
Joined: 05/13/2019 - 08:33
Posts: 8
Location: FRANCE
SR-G wrote:
By the way … can someone confirm me if the base tube (containing the 4×18650) of the BLF LT1 is compatible with the BLF Q8 ?

So, as a confirmation, as i was asking …
I bought (from official SOFIRN store) :
- At first the BLF Lantern “SOFIRN LT1” here : https://fr.aliexpress.com/item/4000238008009.html?spm=a2g0s.9042311.0.0....
- And then the “SOFIRN Q8” lamp (NOT the BLF one) here : https://fr.aliexpress.com/item/32920587281.html?spm=a2g0s.9042311.0.0.27...

And so now i can confirm that, even if the base tubes are not 100% identical, they can freely be switched with lamp part of both lamp (both combinations are working).

The “Q8” base tube one :
- is a little bit smaller (a few milliters smaller)
- does not have any screw hole at the bottom

DBSAR
DBSAR's picture
Offline
Last seen: 2 hours 57 min ago
Joined: 02/11/2013 - 23:28
Posts: 6378
Location: Newfoundland, Canada
SR-G wrote:
By the way … can someone confirm me if the base tube (containing the 4×18650) of the BLF LT1 is compatible with the BLF Q8 ?

They are compatible, as the LT1 was designed & patterned to use the same battery tube as the Sofirn Q8. ( to save manufacturing & sale cost) only the end cap is different as it has the tripod mount threaded hole on the LT1 version.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

sunsethiker
Offline
Last seen: 2 weeks 3 days ago
Joined: 05/26/2019 - 22:37
Posts: 21
Location: Somewhere in the light.

I am attempting to gather the necessary parts to program the LT1. I have the Emisar kit but is a 2 × 4 layout. I am looking for a 2 row pogo pin holder and cable that will facilitate a 3 × 4 pin lay out. Toykeeper referenced this
Oshpark earlier in this thread. It appears to be a 2 × 4 pin layout when the LT1 needs a 3 × 4 pin lay out.

Does any one have a source for a 2 row pogo pin holder of some sort?

With a new version of Anduril available I think there might be a demand for a few LT1 specific programming kits/cable.

Streamtronics
Streamtronics's picture
Offline
Last seen: 6 days 12 hours ago
Joined: 01/02/2019 - 19:14
Posts: 94
Location: Germany

Yeah I'm sure pogo pins are super comfortable but really, if there's no standardized pad arrangement you'll have to make a custom pin holder from scratch for every light. Kinda defeats the purpose. I wouldn't really know how anyway, and would have to buy pogo pins first etc... So I just took out the LT1 driver (easy to do, just two screws) and clipped onto the microcontroller. However that's really annoying if you are developing a firmware while also not having an external power supply. My clip constantly fell off tho so I got really close to just soldering wires to the programming pads on the driver after the 30th time flashing it or something lol. But yeah, no idea how other people do it. 

 

Edit: You only need 6 pins for programming, the LT1 kinda has a 3x3 pad arrangement. Are you sure the Emisar kit doesn't fit mechanically onto these pads? If it does, it'd be easy to make an adapter cable that just makes sure the pinout is correct.

sunsethiker
Offline
Last seen: 2 weeks 3 days ago
Joined: 05/26/2019 - 22:37
Posts: 21
Location: Somewhere in the light.

The LT1 4.3 version has 3×4 pin layout. I do not know if all the pins are used or not but I really do not want to ruin the cable for the Emisar lights trying to make it work on the LT1. I do plan on using the usb part, just need a different cable/pin holder.

SammysHP
SammysHP's picture
Offline
Last seen: 5 hours 59 min ago
Joined: 06/25/2019 - 14:35
Posts: 981
Location: Germany

You only need the six pads in the 2×3 array as labeled. Use some jumper wires to match the wiring between the programmer and the cable.

Streamtronics
Streamtronics's picture
Offline
Last seen: 6 days 12 hours ago
Joined: 01/02/2019 - 19:14
Posts: 94
Location: Germany

sunsethiker wrote:
I do plan on using the usb part, just nedd a different cable/pin holder.

You'd be able to use the pogo pins as well, there's a pin header on that side as well after all. Just need to manufacture a cable that swaps signals according to the needed pad arrangement. 

SammysHP wrote:
You only need the six pads in the 2x3 array as labeled. Use some jumper wires to match the wiring between the programmer and the cable.

I'd expect six just loosely held wires to be a quite dodgy connection.

sunsethiker
Offline
Last seen: 2 weeks 3 days ago
Joined: 05/26/2019 - 22:37
Posts: 21
Location: Somewhere in the light.

This thread is so large it is hard to scroll though and searching is tentative but I have found reference that the Osh park board will work even though it is a 2 × 4 pin. I am trying find out now what the pins are being used for on the LT1.

I am going to have 5 or more of the lights between friends and family and want to make it as easy as possible to reprogram. I do not mind spending the time to make a LT1 specific pogo holder cable.

Should this be a separate thread?

edit: found this https://budgetlightforum.com/node/36216

SammysHP
SammysHP's picture
Offline
Last seen: 5 hours 59 min ago
Joined: 06/25/2019 - 14:35
Posts: 981
Location: Germany

Streamtronics wrote:

I’d expect six just loosely held wires to be a quite dodgy connection.


I meant using both sides – the programmer and the pogo pin PCB – and connect them with jumper wires. Or is Hank’s pogo pin adapter just 2+4 instead of “full” 4+4? In that case it can still be used – just omit ground or V+ and connect it directly to the flashlight.
Streamtronics
Streamtronics's picture
Offline
Last seen: 6 days 12 hours ago
Joined: 01/02/2019 - 19:14
Posts: 94
Location: Germany

SammysHP wrote:
Streamtronics wrote:

I'd expect six just loosely held wires to be a quite dodgy connection.

I meant using both sides – the programmer and the pogo pin PCB – and connect them with jumper wires. Or is Hank's pogo pin adapter just 2+4 instead of "full" 4+4? In that case it can still be used – just omit ground or V+ and connect it directly to the flashlight.

Oh lol, sorry for the misunderstanding. Yeah that'd certainly work 

sunsethiker
Offline
Last seen: 2 weeks 3 days ago
Joined: 05/26/2019 - 22:37
Posts: 21
Location: Somewhere in the light.
Everything I am finding about programming is the chip it self.

https://budgetlightforum.com/node/36216

Is there a schematic of the programming pads? + and – are labeled but the rest are not.

SammysHP
SammysHP's picture
Offline
Last seen: 5 hours 59 min ago
Joined: 06/25/2019 - 14:35
Posts: 981
Location: Germany

Everything should be labeled. Here is a photo of the latest revision: https://i.redd.it/bzi7l3tlaui51.jpg

It is

RST V+ GND
SCK MISO MOSI

Funtastic
Funtastic's picture
Offline
Last seen: 22 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2106
Location: New Zealand

Does anyone have a rough estimate as to how long moonlight will last with 4× 3300mAh cells?

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

SammysHP
SammysHP's picture
Offline
Last seen: 5 hours 59 min ago
Joined: 06/25/2019 - 14:35
Posts: 981
Location: Germany

5x AMC7135: 5 * 0.35 A = 1.75 A
1/256 duty cycle: 1.75 A / 256 = 6.8 mA
LED + MCU: 6.8 mA + 2 mA = 8.8 mA
Battery capacity: 4 * 3300 mAh = 13.2 Ah
Estimated runtime: 13.2 Ah / 8.8 mA = 1500 h = 62.5 d

Probably much less due to other losses.

Funtastic
Funtastic's picture
Offline
Last seen: 22 hours 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2106
Location: New Zealand

SammysHP wrote:
5x AMC7135: 5 * 0.35 A = 1.75 A
1/256 duty cycle: 1.75 A / 256 = 6.8 mA
LED + MCU: 6.8 mA + 2 mA = 8.8 mA
Battery capacity: 4 * 3300 mAh = 13.2 Ah
Estimated runtime: 13.2 Ah / 8.8 mA = 1500 h = 62.5 d

Probably much less due to other losses.

I appreciate it, many thanks

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

Coscar
Coscar's picture
Offline
Last seen: 1 hour 24 min ago
Joined: 01/03/2016 - 20:16
Posts: 789
Location: Gulf Coast
Funtastic wrote:
Does anyone have a rough estimate as to how long moonlight will last with 4× 3300mAh cells?

I know this wasn’t your question but thought it may also be useful……. Beer

Coscar wrote:
I enjoy candle mode. I did a runtime test in low candle mode starting with 30Qs@ 4.2v. After 21days – 24/7(total of 504 hours) the onboard voltage reported 3.4v.

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


A little John Prine

Geronimo
Offline
Last seen: 2 weeks 3 days ago
Joined: 04/20/2019 - 19:11
Posts: 211
Location: Ohio

Havent flashed my original version yet but realized I lost the usb rubber cover for the charge port , any ideas? I didn’t see parts listed anywher e.

Emisar d1s 3a. ZL sc700d,sc64w hi,H600c,Streamlight tlr1-hl, Astrolux mfo1s 4k/purple. Olight I3t Eos black. Ylp 2m cri.ZL sc64le, k1 xhp35 hi in 4k.

Skylight
Skylight's picture
Offline
Last seen: 5 hours 13 min ago
Joined: 10/01/2018 - 04:49
Posts: 1087
Location: Europe
Geronimo wrote:
Havent flashed my original version yet but realized I lost the usb rubber cover for the charge port , any ideas? I didn’t see parts listed anywher e.

Recently I got my BLF LT1 and it has a spare USB cover together with the spare o-rings. You should ask Sofirn if they can send you one. They should have it available as a spare part.

SR-G
Offline
Last seen: 2 months 3 weeks ago
Joined: 05/13/2019 - 08:33
Posts: 8
Location: FRANCE

Do you know which screws (with which dimensions) to buy and that would fit the BLT L1 screw holes ?

I ordered these ones (flavor “LS047” / screw 4.5mm + additional height 3mm), and sadly they don’t fit well (and not in the same way between hole on the side versus at the bottom = it goes deeper on the side) (and i haven’t been able to find models without the “gap” in the middle).

https://fr.aliexpress.com/item/4000767201624.html?spm=a2g0s.9042311.0.0....


derfyled
derfyled's picture
Offline
Last seen: 1 week 1 day ago
Joined: 04/16/2013 - 07:51
Posts: 287
Location: Canada

Never tried but I’m 99.99% sure these would fit.

https://www.amazon.ca/Lala-Smill-Mounting-Stainless-Release/dp/B07JZDBDP...

You simply need standard photography tripod screws. Nominal size is 1/4-20

PS: ces vis sont disponibles au sur Amazon Canada, j’imagine qu’elles le sont également sur Amazon France ?

Pages