Look forward to being able to get my hands on these when they go production. I am almost 54 yo and my uncorrected eyesight is 20/800 and 20/850, corrected 20/30 to 20/35 depending upon the day. It really takes work for me to build drivers now, must have good magnification just to begin to think about building them. More options are always a good thing.
Ahah, clicky switch it is 
I am more comfortable with those anyway!!
That’s fine too, in the S2+ there is no problem when using double sided drivers, so I will use it in a new pill I will make just with this driver. Maybe on a Triple or with a single Luxeon V2
Or…maybe I can use it in the Convoy T2, in case the double sided fits well 
Will you solder the spring on it? If possible, that would be better, so that I don’t mess with the heat in the components…I may be sloppy in spring soldering :zipper_mouth_face:
Thanks again
I’ve made the GND ring rather thick so they fit in all my convoy lights without needing to file down the retaining ring. I’ll put on a spring for anyone that wants it.
Aw, this is so nice, Thanks Mike for choosing me 
I am just not sure if like more E-switch od dual switch option !?
Slim-4 it will be in any case because “more current” is how I roll these days 
And I wouldn’t mind getting 1634 version.
Congrats to other winners as well 
If you want the MOST current, you should get the FAT-3, because it has a FET at the top end. The Slim-4 has higher regulated output, because it has another 1.5A regulator where the Fat-3 has a FET.
Yes, Fat-3 is regulated up to 3 amps, then FET for full blast. However, Tom Tom suggestion there might be some limitations with the FET I chose. In post #25 he wrote:
I haven’t tested this much so I can’t really comment, but don’t count on the FET mode to pack as much punch as most other BLF drivers with full blast FET modes.
I’m still interested, thanks for choosing me!
I’ve gotta reread this thread to figure out what UI I want, probably go with a slim 4 in some dual switch configuration (gotta pick out a good host too). Thanks for the new project, I was clearing up the last of what’s on my bench and needed something new.
One question for now:how does LVP operate? Does it [any of the UI’s] have any sort of battery voltage readout or just protection when it’s getting low?
E-switch or dual switch doesn’t really matter, it’s fairly easy to re-configure the settings. I’ve updated post #2 with more information. Basically just let me know what switch configuration and which UI you want the light to be set in, and you can change later if you want. It’s only those with clicky/off switch choice that I wan’t to make sure everything is set right because re-configuring isn’t quite as easy.
Cool. Nice to see people are still interested, it’s been a while. I did pick you for your dual switch comments so I was hoping you’d want to try it out in dual switch configuration.
I’m not a fan of auto step down, so I’ve only implemented auto step down from boost/turbo mode. All other modes will just warn for low voltage/high temp, or shut off for critical. Voltage and temperature monitoring options can be re-configured.
I do have a battery readout function. You can choose between 1 to 5 blinks, or two digit readout by blinks. So far I have only implemented battery read out from off though, currently no option to check while it’s running. I have a very easy method in my code to add short cuts though, so I can compile your firmware with a short cut for battery check if you want it.
Hmmm. After looking at my list of lights I want to mod in the dual switch category I may have to rethink… Every one of them will require a custom made-specifically-for-that-host-pcb.
One option is to make my own boards for your circuit, strip your driver and build it on my board but I think that kinda makes it so you dont get much actual feedback / data since it’s introducing huge variables (my PCB design) so I’m not sure I really want to do that.
Give me a few days to mull it over. May just go with a standard clicky variant. Do you have any host suggestions for a dual switch light with 17mm driver? On my want to build list I currently have a few sofirns which all take odd-shape drivers with daughter boards and a klarus ST15r which will need the charger integrated into its driver.
Yes please, a spring would be good! Otherwise I may damage it (as I did before with other drivers) :person_facepalming:
Thank you
Not really. I’ve been using a L4 for dual switch testing with a larger diameter driver med specifically for it. No need to dig up a 17mm compatible dual switch for this driver, go with a single switch host if that’s what you have.
Unless you have a L4 of coarse… I have two Convoy L4s and three driver boards. I could build the third L4 driver and send it your way.
I just have to say, this was one of the best suggestions of them all. I’d never heard of this or thought of it myself but after having implemented this as an on/off setting and have to say I’m hooked myself, I don’t want wrap around anymore either. This is exactly why I made this giveaway thread. You didn’t enter for a driver and haven’t logged in for ages, but if you by chance read this, thanks!
Going on a months vacation this weekend, but pushing to get the drivers in the mail before I leave.
Wait, if there’s no wrap-around, then what do you have instead? Where does the next click take you when you’ve reached the end?
The next click takes you nowhere. I have both mode up and mode down in my firmware. If you mode change up to the brightest, then there is no more mode to change up to. You use mode down press to go lower. If you are at the lowest mode, mode down want do anything, you can only go up with mode up press.
I made it a setting which can be enabled/disabled. I don’t use many modes myself, normally max 3 including boost, and I really like it. For lights with only two modes in mode cycle I want to be able to wrap around, makes no sense to have it disabled then. Also, the setting has no effect on the UIs that don’t have mode down sequence.
I was trying hard to get everything done before going on vacation but I haven’t done enough testing. I found a few more bugs in the firmware and things I don’t like and have not been able to fix everything in time, and yesterday I found a couple more. I also found that fixing the 1634 version will take as long as fixing the 3217 version so I’ve shifted my attention to them.
So sorry to say I can’t send them until I get back from vacation. Really sorry about the additional delay but I’ve spent so much time with these drivers and firmware already that I really don’t want to send out buggy drivers. Shifting over to the 3217 isn’t what’s caused the delay, the 1634 firmware wasn’t as finished as I thought it was. I haven’t actually been out using lights in the field since my vacation last year.
Anyhow, all of the 3217 drivers for the giveaway are made and tested, they are just waiting for the firmware. I put springs on during reflow, much easier. I can solder on spring bypass and LED wires if wanted. My girlfriend has a lot of studying to do during this trip so I’ll have some evenings to work out the remaining quirks in the firmware. I’ve sent a PM to all giveaway winners.
I might pop in here once or twice during my vacation but possibly not. I might be out of touch until I return in four weeks. Here are giveaway drivers waiting impatiently to be sent off for adventures:
^ Looking gooooood!
Sorry you’re being forced into a 4-week vacation. Just kidding!
Have fun. Don’t worry about us.