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Author Topic: how to use your E2's camera flashlight as a Torch  (Read 12676 times)
rzd4evr
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« on: July 31, 2007, 03:43:00 pm »

modify you E2'S hardware can let the E2 own the torch function
i have post the pictures in it168 but they didn't interest in it
sorry of my very poor english ,i am from china
« Last Edit: July 31, 2007, 08:27:32 pm by rzd4evr » Logged
Taurnil
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« Reply #1 on: July 31, 2007, 05:28:11 pm »

Well, this is very interesting.
Is this permanent? how do you control the light? have you made tests about light duration and heating?
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rzd4evr
Guest
« Reply #2 on: July 31, 2007, 08:35:36 pm »

Well, this is very interesting.
Is this permanent? how do you control the light? have you made tests about light duration and heating?

it is permanent,you can control the light with a little switch which have two circuit.

i have not test about it, i refer the datasheet of the flashlight IC lm3551 which E2 used.
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letterb
Guest
« Reply #3 on: July 31, 2007, 08:43:54 pm »

very good!
i am from China too
but i don't know the knowledge on hardware.
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huatz84
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« Reply #4 on: July 31, 2007, 08:46:53 pm »

Wow...that's cool.But I'm waiting something like mpkg to make our flashlight like E398.That will be amazing as our E2 has a very shining flashlight.
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letterb
Guest
« Reply #5 on: July 31, 2007, 08:53:39 pm »

Wow...that's cool.But I'm waiting something like mpkg to make our flashlight like E398.That will be amazing as our E2 has a very shining flashlight.

i think so.
use software to make it.
haha
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sjj
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« Reply #6 on: August 01, 2007, 01:51:39 am »

Not worth the risk doing the hardware mod, rather use a software to control it...
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rzd4evr
Guest
« Reply #7 on: August 01, 2007, 03:20:35 am »

Not worth the risk doing the hardware mod, rather use a software to control it...

modify the hardware is better than use the software,you can download the datasheet of the lm3551 and read it ,then you'll know why
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Exploited
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« Reply #8 on: August 01, 2007, 03:38:07 am »

Hey, that's a very good one! I will try to share it at motofan.ru
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keaglez
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« Reply #9 on: August 01, 2007, 03:39:56 am »

I affraid of hardware mod.. I can 'destroy' my phone.. I have less knowledge about hardware.. I will wait for the software.. Hehe..
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Best regards,
Jeffri H.

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« Reply #10 on: August 01, 2007, 03:56:06 am »

I am not, but I won't be able to find other E2 in my country Wink

When I get newer phone I will beat the s*it out of my E2 Smiley
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Taurnil
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« Reply #11 on: August 01, 2007, 08:58:29 am »

Hi all
well, I checked the datasheet... according to its information, the modification may work: forcing T_F and SD pins to GND puts the LM3551 into  low power torch mode (Flashlight); the LM3551 has a thermal shutdown circuit (wich helps a lot Cheesy).
LM3551 also has a timeout function (Flash timeout protection). According to the datasheet, you must ground the FTO pin to disable it... but still I see the C466 capacitor in the circuit diagram...
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« Reply #12 on: August 02, 2007, 12:12:05 am »

I tried yesterday, but my cheese fingers didn't worked well Smiley I will try again when I have more time
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Taurnil
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« Reply #13 on: August 02, 2007, 08:23:56 am »

I'm sure this moddification can work if we send the FTO pin to ground directly (removing C466 and putting a short circuit instead), sending SD pin to GND (ground, just like the circuit diagram that rzd4evr posted) and making a well-written mpkg application who switches the flash signal between 0/0V/GND (torch on) and 1/V+ (torch off).
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