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impeham is offline impeham
2013-06-01 , 10:52
Posts: 669 | Thanked: 433 times | Joined on May 2010
#71
Originally Posted by Estel View Post
I would like to mention, that when he runs at night with N900 on his wrist using a car-filled road, he probably would like to get brightest flashes possible. Considering, that torch mode is powered from lower than 4x less (on lowest flash settings), yo lower than 6x less (on highest, 19 settings), it makes a difference

[OT]
impeham, could you describe or just shot photo of how you attach N900 to your wrist, for comfortable running? Tried some variants, and it every of them, I felt too concerned abut N900 safety, maybe I'm missing simple solution?[/OT]
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Thanks for the loop mode of morse code (poetical, I know) idea and implementation! Controlling red led is another awesome idea, that I'm shocked no one tried before. Holding my thumbs (and NEONs) for it!

/Estel
I had one that was ruined, and i'm waiting for a new one to arrive - ordered from DX - should be here any day - i'll let you know how it is. this is what i ordered:

http://www.ebay.com/itm/Sport-Armban...E:L:OU:US:3160

About the brightness i disagree - the regular level looks fine to me.

Copernicus - thanks for the "continuous pulse" button. making the flashes for this mode configurable like in the "Strobe Flash" will be cool
 

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Copernicus is offline Copernicus
2013-06-01 , 11:57
Posts: 1,986 | Thanked: 7,698 times | Joined on Dec 2010 @ Dayton, Ohio
#72
Originally Posted by chill View Post
There was also flashlight-extra-gtk, a utility to select between flashlight and camera on cover open. Have you checked that, too?
Ah, no, I hadn't... Ok, checked their code, and yeah, they're using exactly the same "dsmetool -k" and "dsmetool -t" to kill and restart the camera-ui app. But at least they aren't trying to mess around with the camera-ui's gconf settings.
 

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Copernicus is offline Copernicus
2013-06-01 , 12:04
Posts: 1,986 | Thanked: 7,698 times | Joined on Dec 2010 @ Dayton, Ohio
#73
Originally Posted by sixwheeledbeast View Post
Your settings page is no longer portrait friendly.
Ah, drat. I'm throwing these UIs together way too quickly. I'll try to rearrange it asap.

A preference option to quit application on shutter close would be handy if possible.
Ah! Yeah, that makes sense, I'll add that in.

What current are you running torch mode at?
Sorry, yeah, the "torch" mode is running the flash LEDs at 50 mA, from what I've read on the ADP1653 data sheet. From the V4L2 parameters I'm getting, that seems to be the one and only allowed current level for torch use...
 

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Copernicus is offline Copernicus
2013-06-01 , 12:10
Posts: 1,986 | Thanked: 7,698 times | Joined on Dec 2010 @ Dayton, Ohio
#74
Originally Posted by impeham View Post
Copernicus - thanks for the "continuous pulse" button. making the flashes for this mode configurable like in the "Strobe Flash" will be cool
Actually, you can already vary the duration of the flashes by using the dot-duration control in the Morse code window. (In fact, you can enter your own string of Morse code and have it run continuously as well.) But yeah, I could include a UI for more precise control if you want.
 

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malfunctioning is offline malfunctioning
2013-06-01 , 21:05
Posts: 330 | Thanked: 556 times | Joined on Oct 2012
#75
Originally Posted by Estel View Post
Well, it was the kindest way of telling me to FO with some feature request, that I've ever got
This is priceless, actually made me laugh out loud.

How about the program looking for a "power user flag" like a hidden file with a text string that would require users to explicitly do this if they want to get into trouble? Just look for the existence of the flag, and if present enable this potentially catastrophic feature.

Amazed at the pace of development, Copernicus. Tip of the hat to you!
 

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Copernicus is offline Copernicus
2013-06-01 , 22:02
Posts: 1,986 | Thanked: 7,698 times | Joined on Dec 2010 @ Dayton, Ohio
#76
Originally Posted by malfunctioning View Post
How about the program looking for a "power user flag" like a hidden file with a text string that would require users to explicitly do this if they want to get into trouble?
Honestly, I'm really not comfortable writing software that will physically damage N900s, no matter how much their owners want it. There just aren't enough N900s left in the world!

(But, as I've said, the source code is available; you can modify it yourself if you absolutely need that feature...)

Amazed at the pace of development, Copernicus. Tip of the hat to you!
Thanks! With Lanterne and Pierogi, I think I've just about mastered the art of switching LEDs on and off now.
 

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malfunctioning is offline malfunctioning
2013-06-01 , 22:16
Posts: 330 | Thanked: 556 times | Joined on Oct 2012
#77
Originally Posted by Copernicus View Post
Honestly, I'm really not comfortable writing software that will physically damage N900s, no matter how much their owners want it. There just aren't enough N900s left in the world!

(But, as I've said, the source code is available; you can modify it yourself if you absolutely need that feature...)
I fully understand. And you are right, your source code is there to be modified.

Regarding the N900s, I think most obsessed and hardcore N900 users have multiple units. I am on my 1st one still (using another one for experimentation), and I am not going to tell you how many I have because I feel ashamed of it.


Originally Posted by Copernicus View Post
Thanks! With Lanterne and Pierogi, I think I've just about mastered the art of switching LEDs on and off now.
LOL. Well, thats a rather humble way of putting it. Like saying that Shakespeare mastered the art of scribbling words on paper.
 

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qwazix is offline qwazix
2013-06-01 , 23:07
Moderator | Posts: 2,622 | Thanked: 5,447 times | Joined on Jan 2010
#78
Just want to chip in to say kudos to Copernicus for his rock-solid stance towards protecting N900's

Don't budge mate.
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Copernicus is offline Copernicus
2013-06-02 , 00:28
Posts: 1,986 | Thanked: 7,698 times | Joined on Dec 2010 @ Dayton, Ohio
#79
Well, I didn't really do too much work on Lanterne today, but I went ahead and pushed up a little update anyway. The only new functionality in version 0.5.1 is an option on the preferences window that will cause Lanterne to exit when you close the camera cover.

I've also started to play around with the UI a bit, to reconfigure Lanterne more as a general-purpose flashlight app than as a tool for experimentation. To simplify the main window, I've moved the "strobe flash" button off of it and into the menu options. I've also tweaked the UI in a couple of other places, in an attempt to start cleaning it up. (I should also probably find some pretty icons or something to make it look professional, I guess... )
 

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pichlo is offline pichlo
2013-06-02 , 08:04
Posts: 6,453 | Thanked: 20,983 times | Joined on Sep 2012 @ UK
#80
Originally Posted by Copernicus View Post
...(strobe) flash brightness level...from 215 mA at 12, to 320 mA at 19.
and...

Originally Posted by Copernicus View Post
Sorry, yeah, the "torch" mode is running the flash LEDs at 50 mA, from what I've read on the ADP1653 data sheet. From the V4L2 parameters I'm getting, that seems to be the one and only allowed current level for torch use...
Now I understand and fully support your concern for potentially breaking the device. Feeding the LED 6x the maximum allowed current sounds scary indeed.

Just a bit of theory. Flasing LEDs can take several times their nominal continuous current for a long time, even permanently, provided that two conditions are met.
1) The maximum pulse current is not exceeded;
2) The duty cycle is set such that the average current over a longer period of time does not exceed the maximum continuous current.

I don't know what the maximum pulse current for our LED is but it usually tends to be 10 to 20 times the maximum continuous current. If the chip allows 320 mA, then I would stick with it. The other bit is the duty cycle. At 1:1 duty cycle, you are right not to allow to stress the LED for too long. Setting it to 1:5 might allow you to breathe a bit more easily.
 

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flashlight, lanterne, morse code, nokia n900, strobe light, torch

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