It’s a FET driver, so whatever the batteries can give.
In my L6 with Liitokalas it pulls 12 amps. If I put some good unprotected 18650 cells in my same light I doubt it would deliver the same amps just because the voltage will sag more under load. I’d guess 10 to 11 amps maybe.
Is that what you were asking?
Exactly Jason!
So basically, if i use 2S you can light up emitters up to 8,4V and lots of current up to a level where the cells or other parts limit the output?
Yeah, pretty much.
So I made some minor changes to the Bistro OTC board using a high quality 0805 capacitor with low temperature shift and only 5% tolerance this should get better than the standard X7R 0603 one when the light gets hot
also on ordering the parts I looked around and checked if there is a better 47uF tantal capacitor and I found that Flintrock pretty much choose the most expensive on market, getting another brand with identical specifications drop the price by 1$
as I got also over 10 of those capacitors price dropped also
the question is if I can use this new capacitor and save almost 1.5$ to the first Bistro OTSM material calculation, getting you a partial refund on the paypal transaction?
Not sure if it applies to me but no need for me anyway.
OK, I educated myself on Bistro-HD OTSM. Definitely looks like the thing, but I need a clarification. The firmware’s thread mentions that it needs ATtiny85 revision C. It reports that all trial to find it failed. Did you manage to find it?
Bistro HD OTSM runs on Attiny 25V
extra parts price for HD OTSM dropped to 1.5$ as I did change the capacitor brand with same specifications and are above 10 parts Digikey lower prices as well
0.92$ vs original calculation of 2.23$ for the capacitor
Any chance for 45V?
for 0.5$ more I can order 45V I am ordering later today
So I’d like both divers with 45V. Thank you.
Excuse my ignorance but what is the ‘45V’?
Attiny45V microcontroller. It has more memory, which leaves more space for me to do firmware customisation. Unless you intend to change firmware, it’s useless for you.
Attiny 45V more memory than the 25V
V is some sort of low voltage enhanced version that is needed for OTSM to work
Thanks for that information. I won’t likely be changing the firmware so not for me.
parts ordered from Digikey
Yeah i agree, LVP much more crucial for me too.
As far as i understand with 1.2 i loose the ability to add a led to the e-switch to have it show me voltage readouts. But i still could add a led there just as a locator, did i get that right?
Also i could flash the 1.2 with 1.5 when it is ready if it is not by the time of sending out batch 3, correct?
My order should be something like 30mm, Narsil 1.2 with LVP, and 2S LDO if i got everything right.
Btw, can the tactical 100% blast on the rear switch be removed? i would prefer to use the clicky just as lockout
Your right, you can’t use the indicator output with v1.2, but you don’t really need it. When you triple click, the main led will blink out your voltage. Plus you can use the power output pad to make the side switch light up when the tail switch is on (locator).
If you know how to flash it, then sure, you could upgrade to version 1.5 when it is ready. I don’t know how to do that.
The tactical rear switch is written in the code so it can’t be turned off. It would require a reflash to get rid of it. I have the tactical on my L6, but find its not as practical as I thought it would be. It’s so easy to click on and off with the side switch that I find myself not wanting the tactical option. This second driver I’m ordering will be programmed to do nothing when the rear switch is activated. I will know the rear switch is on because I plan to have the side switch light up on my new light as well.
you can choose how the light reacts to the rear switch
tactical=turbo
2B= 2 low blinks to aknowledge the Light is ready
NO=No light by the main LED
AMCs
