NarsilM - configurable e-switch firmware for Multi channels, v1.3

Flashlight Modding and DIY Parts
89

Can you upload your NarsilM folder somewhere?

90

Are you using r1&2? What pin is the indicator connected too?

91

I am not using R1 and R2 and its connected to Pin 7

I downloaded NarsilM here

I have uploaded the zip here, containing the original NarsilM files with the OTR M3 setup.h and build hex file

http://www.metronixlaser.de/bilder/flashlight/NarsilMulti.zip (link is external)

92

The only different file from what I’m using is the m3 setup file. I’m just using the main built in setup file. I didn’t know there was an m3setup file. Sorry, I am unable to flash your .hex file right now. That might be helpful. Idk? If your still having trouble I might be able to do that tomorrow. I’ll keep watching. Hope you get it working. Working through these details can be frustrating !

93

I found the error, the switch wires were soldered the wrong way :person_facepalming:

94

Don't sweat it - no problem.

95

Amazing work as usual Tom. That 18 led light with all the wires is incredible. Thanks for all the pictures. :+1:

96

I did mod the Klarus G35 with the dead driver today with NarsilM driver

further testing showed that the indicator LED as locator does not shut down with low voltage when the battery gets depleeted from it
it draws not too much on my setup with green LED and 4.7kOhms about 85uA at 2.7V

so there is a parasitic drain that can kill unprotected cells if the light gets stored over a longer period of time with the locator on with almost depleeted batteries

BUT
when the light shuts down from LVP it starts to blink for low voltage warning when the light is in standby, but it does not shut down
even worse the blinking means the MCU is not in deep sleep and it draws more current
then it draws 3mA from the battery which can be within a few days lead to a overdischarged battery, as the battery is almost depleeted

97

By design, when the light is shut down in a low voltage state, it does the blink to indicate low voltage, as you say, but does it only for 6 minutes, then shuts down the MCU. So after 6 minutes, it should go into a "deep sleep" (power savings) mode. After the 6 minutes is up, it should turn off the Indicator LED before going into power savings mode.

So, did you wait the 6 minutes to see that occurs or not?

I'm pretty sure I tested this in the older Narsil version, but not in NarsilM, nothing was changed in this area.

However if your cells are pretty low but not in a low voltage state, and you leave the light with the main LED off and Indicator LED on for several months, or maybe weeks, depending, then yes - there is no smarts in the MCU running to determine low voltage, therefore it cannot shut the LED off, so it will over drain the cell(s). This parasitic drain is pretty low though, depending on what LED and LED resistor value you use. I've left several flashlights in this state with the Indicator LED on for months without noticing much battery voltage drop.

Here's the code:

         //---------------------------------------------------------------------
         // Be sure switch is not pressed and light is OFF for at least 5 secs
         //---------------------------------------------------------------------
         word wWaitTicks = 310;  // 5 secs
         if (LowBattState)
            wWaitTicks = 22500;  // 6 minutes

     if (((!ramping && (modeIdx == 0)) || (ramping && outLevel == 0))
                        &&
         !IsPressed() && (wIdleTicks > wWaitTicks))
     {



#ifdef ONBOARD_LED

// If the battery is currently low, then turn OFF the indicator LED before going to sleep

//  to help in saving the battery

#ifdef VOLT_MON_R1R2

if (byVoltage < ADC_LOW)

#else

if (byVoltage < BATT_LOW)

#endif

if (locatorLed)

TurnOnBoardLed(0);

#endif


        _delay_ms(1); // Need this here, maybe instructions for PWM output not getting executed before shutdown?

        SleepUntilSwitchPress();   // Go to sleep
     }</code></pre>

98

OK I didnt wait more than a minute in my Test
If it shuts down after 6 minutes thats OK

As I wrote with a medium resistor and 0603 LED the parasitic drain gets really low when the battery is almost depleeted which takes months to be a problem

99

I assembled a L6.

TA LDO 30mm PCB
NarsilM V1.0
XHP70.2

I Can not turnoff by E-Switch，like below link veido.

How to check？

100

It happens sometimes that a AMC7135 does not shut down completely

they are drivern over their voltage specs and their quality varies from different supplies

Solution is to unsolder them and find the damaged one

101

I reassembled a new driver.

The situation is the same.？ :cry:

102

Remove the single AMC7135
then opposite of the FET

One thing for sure if you remove all 7135s its most likely gone

103

+1 with Lexel. I think I had the same issue. For 2S, you really have to have the "good" 7135's, and even still, it's risky. The XHP70.2 can be driven at high amps, so maybe it's more likely to fail?

104

I can not understand that all 7135 are brand new.

How to test the 7135 good or no good?

105

simple test

LED does not go out, you got at least one bad
LED gets out all good

I got good expirience with this AMC source
I ordered over 1000 there and had only like 15 bad ones on 2S drivers
https://de.aliexpress.com/item/200PCS-AMC7135PKFT-AMC7135-7135-SOT-89/32425181405.html?spm=a2g0s.9042311.0.0.ImdKd5

106

Is this the problem?

107

I think the 7135 are only rated up to 6 or so volts and with 2S lights your above/out of spec.

108

–0.3V to 7V

https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwi5rdbG2tbVAhVGb1AKHVmiCKkQFggnMAA&url=https%3A%2F%2Fwww.rcscomponents.kiev.ua%2Fdatasheets%2Fdoc000709557-datasheet.pdf&usg=AFQjCNHuyS9ZV3RNa1pK0AjczxJDaaQ7vg

the problem is there are many cheap AMCs that are not even the original manufactor with different quality

What I can dicover sometimes on drivers if I do thermal calibration when I heat the driver up they start to leak and when cooled down they are fine again

often its way below moonligh level, just a few are that bad like you see it