Oshpark Projects

Ohh, yes, could be TA didn't publish the design for public access. Could be for technical reasons, but also it's probably only available in large sizes.

MT09R? Not sure. But I recently flashed the HL HK4S with Anduril2 and used a FET+1 configuration, same as the Q8, and it's working pretty well.

This is the HK4S driver:

and my notes on it:

That Q4 chip and associated circuit acts as a 7135.

Would love to see oshpark shares of such designs.

Can confirm about 7135s in 2S config. My L6 has a fet+1 and works great (if slightly strange behavior - the 7135 channel actually gets brighter as battery voltage decreases). However, when I tried the same in my SP70, the 7135 blew nearly immediately. I need to reopen that light, remove the 7135, and reflash to only use the FET…

I've done exactly that before - FET only, but never got the low level output to ramp smoothly - didn't spend much time on it, so there's probably a fix, even if the fix is to eliminate some of the low level output levels. My modded 16X XHP50.2 6V light looked pretty cool on the 7135 at lowest moon, LED's just glowed, but the 7135's didn't last too long.

Thanks Tom E. Is there any hex file for Anduril FET only?

Not that I know of, but sounds like Scallywag may have one, soon maybe? I won't have time to build/test - been very bizy at work. In the past I did it with NarsilM.

Oh no, nothing I do is ever “soon”
The light has been like this since last fall…

Is it possible for someone like me with no electronic experience to build a MT09R driver for a new build ?

It should be possible. It is not too difficult. You just need some solder paste and a hot air station or hot plate. Choose the right parts, put solder paste on the pads and place the parts on the board according to the parts list. When reflowing the parts usually position themself neatly. If I don’t use too much solder paste and the parts are not too close together I rarely need some tweezers to correct the parts position. Last step is to flash the MCU and solder wires and spring.

The only thing that could go wrong is a resistor or other part not being soldered correctly. That is what gave me some weird modes and blinking sometimes. And of course the parts are tiny. If something falls down chances are very small you will ever find it again.

I have built quite a few drivers from this thread and everything went well.
But I do have a question:

Which is the best DIY driver for a Convoy S2+ build with KW CSLNM1.TG ? I read many times that a FET might kill the LED.

I have plenty of spare parts, just need some inspiration which 17mm board to order at OSHPark.

Thanks.

Dunno if we have a bare BLF driver that fits this, because the W1 is optimal at 4-5 amps, so it's higher than any 7135 based driver and too low for FET based drivers. So you need a good regulated driver in the 17 mm size that preferably can run the firmware of your choosing for a power switch light.

If we had this, I'd be very interested in getting a bunch. The problem would probably be real estate, unless maybe you can use both sides, say some low profile parts on the spring side.

Unless, of course, you are willing to run the W1 at lower amps, because at 2-3 amps, there should be 7135 based drivers, like this one: https://oshpark.com/shared_projects/JEp3Wx4B, but it's ATTiny13A based.

I wish there would be a BLF version of the linear FET drivers that Simon sells. I still wonder if their components can be harvested, transplanted on a new pcb with an attiny whatever running a FOSS FW.

It should be possible to make an adapter board just like Gchart did for the SP10S. Looking quickly at the pictures there are :

An op-amp enable pin (led enable) , PWM pin for brightness, probably a battlevel pin (voltage divider), an OTC pin.
They would need to be rewired to the MCU on the adapter board.

That said there are a bunch of resistors and caps which I’m not sure what there’re for.

Led4power offers 17mm boards with customizable linear output. Unfortunately it is proprietary and only uses his firmware, but his firmware isn’t bad.

I would like to see basically all the basic BLF drivers (fet+AMC) redone in linear-fet (or linear-fet + direct drive fet) style. Bonus points for compatibility with the popular BLF firmwares (FSM for e-switch, bistro and such for clicky)

I’d like to see Simon just work with ATTinys… But yeah, would love BLF versions. When I want to toss SST40, Luxeon V, or the white flat series in a light, I’d love to be able to just have drivers “in-stock” that I can build and throw whatever firmware on that suits the current whim.

20mm FET+1; Aux Led;

Is the 17mm Texas Avenger driver still the best/latest driver to order for FET+AMC drivers?
Meant for several Convoy S2+ with 1) triple 219B and 2) XHP50.2 3V and maybe another C8 with Osram 1mm2.

And what is the latest firmware for the TA driver? there are so many new firmware releases… hard to keep up. But thanks for all the hard work y’all putting into this. Quite impressive how much has happened in the time I wasn’t on here.

I recently ordered the TA driver in 17mm, I think it is still an up to date driver to be used in flashlights. Not sure which firmware to use, but the firmware repository will have all of them and the help section on there is really good.

Are the 7135 regulators at fasttech still good quality? The 100 pack is only $1.24 more than 50 pack :open_mouth:

https://www.fasttech.com/products/1007/10001705/1124300

I tried some stores on aliexpress for legit AMC7135 but they all canceled because they were out of stock and discontinued. Can’t build these drivers with 7135 raptor claws :rage: :rage:

I see why Lumintop just said %^$$ it and removed them altogether in FW3A. :smiley:

“Raptor claw” are MEL7135
You need only 1 of them on moon channel and all other N can be any brand.

Add RGB Aux and lower lows to your FWAA:

https://oshpark.com/profiles/INeedMoreLumens

1 Thank