reprogam Qlite

Flashlight Modding and DIY Parts
1

I have 5 Qlite drivers I would like to send to someone to reprogram.
I like almost everything about the Qlite drivers, just not the mode power settings.
Can the standard features be kept but change to a 3 mode at 25–50–100%.
I don’t need moon lite or strobe
Will doing this disable the star feature?

Of course I will pay for your time + shipping
CONUS only please.

Thanks
Randy

2

STAR on-time would work

if you have a PC, it’s maybe only $25 in parts to flash these things if you get no takers.

3

Might it just be cheaper to buy new drivers from mtn electronics, and choose what programming you want?

4

Maybe, Depends on how much Richard will charge and when he has time to do it.
And then what do I do with the 5 drivers I don’t like? Sell them at a loss +shipping?
I know this is budget light but I don’t mind spending a little more to get exactly what I want.

5

If you’re going to ship them to someone and pay that person to re-flash them for you, then pay for the return shipping, isn’t that a loss already? If you sell them “at a loss”, and buy new ones from Richard, I’m sure it would actually be less of a loss in the end. Alternatively, you could buy the stuff to re-flash them yourself, like seasam said.

6

you could just purchase flashed MCU from richard… then reflow them onto your drivers

7

Thats clever :slight_smile:

8

I'll reprogram them to anything you want. We have lots of open source stuff available. I'm in CA. Feel free to PM me. No cost except for your shipping fees. However you want to do it. I put him in touch with Toykeeper. I can flash what ever he wants but I can't reprogram. Anyone else know how to reprogram a star to have just 50%100%? That is what I will need for him.

9

Pm on the way

10

On JonnyC`s STAR version 1.2:
Look out for these lines

for 2 modes, 50% and 100%, change them to

for 3 modes, 25, 50 and 100%, change them to

11

Please be aware that these are PWM values for 25, 50, and 100%.

If yout want the modes to* look* like 25, 50, and 100% , i would go for these values

12

Oh cool! Thank you for that! I will see if I can incorporate those changes into the firmware for velvetant.

13

Sorry for the question, new guy trying to learn
Does this mean if it’s programmed for three modes and then solder the third star it will now be two modes?
Or pick one or the other and the stars mean nothing after this?

14

moon mode is only present if you connect star 3 with STAR firmware. if not connected you would only see low,med,high modes in the case of “3 modes” above. if connected you would see 4 modes (moon,low,med,high) instead.

15

The PWM levels for LED brightness follows a logarithmic curve, not a linear curve. So in that respect, Johnny C’s calculation for a medium mode is correct, if you subscribe to the theory that a good medium mode is between 25-30% brightness. In this case a 30% level looks to be applied, at a PWM level of 39.

Having a 50% brightness is very much like a high mode, than a medium mode. Applying a 50% brightness mode would be the equivalent of PWM level of 75.

EDIT: 25% brightness would be a PWM level of 24.

16

If I’m running 4 amps on 100% shouldn’t I be at 2 amps at 50% and 1 amp at 25%

17

Well…yes. But, that has almost nothing to do with how bright the light will look at those levels.

18

Need to look at the lumens verses amps curve/chart. I forget where its at, I think here somewhere in the forums.

19

Thank you for this, it will be helpful.

20

I’m thinking more about the heat produced at 4 vs 2 amps for the smaller lights like Convoy M1 and C8
Almost as bright as high but less heat and longer run times.
Am I way off on my thinking?
And 4 amps was just an example I may be running more or less.