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No Screen: blind navigation help

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No Screen: blind navigation help
« on: 01 / October / 2009, 05:23:02 »
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hello, chdk fora!

recently, i bought a cheap canon camera on ebay (SD750, firmware 1.02A, running the 'complete' build at the chdk autobuild download, $50 AU for the camera), cheap for one reason: only a ~10 pixel wide column is visible on the screen, the rest being plain white. so, i'm committed to flying blind. i knew this when buying, but all i want to be able to do is to run a script, ie intervalometer and motion detection. now, i've managed (after much trial and error) to get chdk running, i think. via this set of blind button pushing.

start in playback mode. menu, up, func set. (select firmware update)
right, func set. (select ok)

that, i'm reasonably confident about. however, navigating through to the script menu and to load a script is where i'm tripping up. this is what i'm trying at the moment, based on what i understand about the menu system from the main manual.

shutter full press (extends lens, so it's not in playback mode any more)
direct print button (switch to alt mode)
menu button
down x4 (navigate to 'script menu')
func. set. (select script menu)
func. set (select 'load script')
func. set (load the first script in the chdk/scripts folder. i renamed an intervalometer script to be aaaa.bas to ensure it would be first, also the other example scripts have been removed)

(purely guesswork)
menu (exit the menu? i'm not sure)
and press the shutter to start the script.

however, there are a couple of issues, where i've clearly mistaken some part of the process.
 -firstly, i can't hear the quiet clicking that is usually heard when the camera takes a shot. so, clearly i've failed at getting the intervalometer to run.
 -secondly, no photos that i take after loading chdk appear on the memory card. ie, if i get out of alt mode, and take a shot that i can hear the camera taking, i can't find this in the memory card at all. is saving to the memory card a non-default option that i need to find? otherwise, i'm confused on that one.

so, in general, if someone could find the place(s, most likely) i'm going wrong, that would be great. ultimately, i'd like to join the throng of people putting up a camera into the stratosphere via weather balloon, so i don't need to know the entire menu system, just enough to run a script. many thanks to anyone with time to help out, and, obviously, many more thanks to those who put together this system! scripting alone is an awesome thing to have available on a camera.

-auskiwi

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Offline whim

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Re: No Screen: blind navigation help
« Reply #1 on: 01 / October / 2009, 05:29:57 »
Hi auskiwi, welcome to the forum !

Nothing to do with the scripting, but can't you hook up your cam to your television thru the video cable ? That should make things a bit easier, maybe.


hth,

wim

Re: No Screen: blind navigation help
« Reply #2 on: 01 / October / 2009, 05:39:24 »
nice idea, i hadn't thought of that!

however, the camera is about 4th hand at this point - with it, i received a battery charger, car charger, and a usb cable. somewhere along the line, either the video cable is lying under someone's bed, or is being enjoyed away from the camera it was built for. :(

thanks for the reply, though. that would have been a nice neat solution.

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Offline whim

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Re: No Screen: blind navigation help
« Reply #3 on: 01 / October / 2009, 05:54:10 »
it might however be easier to try and find one, AFAIK all pre-HD movie Canons use the same cable.

cheers,

wim


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Offline fe50

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Re: No Screen: blind navigation help
« Reply #4 on: 01 / October / 2009, 05:58:43 »
-firstly, i can't hear the quiet clicking that is usually heard when the camera takes a shot. so, clearly i've failed at getting the intervalometer to run.
I guess either the camera is muted ("Mute" ON in the Canon menu) at all or just the "Shutter sound" is disabled from the Canon "Theme" menu.
Load a pdf version of the camera's manual from the web to see how the Canon menu looks like...http://software.canon-europe.com/products/0010438.asp

Quote
-secondly, no photos that i take after loading chdk appear on the memory card. ie, if i get out of alt mode, and take a shot that i can hear the camera taking, i can't find this in the memory card at all. is saving to the memory card a non-default option that i need to find? otherwise, i'm confused on that one.
No, there's no option to prevent saving the JPG images in CHDK.
Are there images on the card without CHDK loaded ?
Check your SD card with a card reader...

You'll find some older CHDK menu views here, you should also load the CHDK user guide.

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Offline fe50

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Re: No Screen: blind navigation help
« Reply #5 on: 01 / October / 2009, 06:06:50 »
it might however be easier to try and find one, AFAIK all pre-HD movie Canons use the same cable.
Yes, thats right; there's only one difference in those "old style" cables:
most cameras use monaural cables (e.g. all the IXUS cameras), some (like the S5 or SX10) are equipped with stereo cables.

@auskiwi:
The cable looks like this one...
At the end of the Canon user guide you should find the Canon identification for the AV cable...

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Offline reyalp

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Re: No Screen: blind navigation help
« Reply #6 on: 01 / October / 2009, 06:10:28 »
it might however be easier to try and find one, AFAIK all pre-HD movie Canons use the same cable.
Not quite, some have a splitter on the USB, while some have a headphone style jack like in fe50s picture.
Don't forget what the H stands for.

Re: No Screen: blind navigation help
« Reply #7 on: 01 / October / 2009, 06:25:30 »
@ whim - hmm, i had a quick look and found one on ebay, but i'll look a bit further before making sure of it.

@fe50 -

"No, there's no option to prevent saving the JPG images in CHDK.
Are there images on the card without CHDK loaded ?
Check your SD card with a card reader..."

 no, there are pics in there without touching chdk. i had fun with randomly pointing it around and seeing the pictures later when plugged the sd card into my laptop. but, when doing the same thing except having loaded chdk, no more pictures appear in the same folder. i've browsed around the memory card, and i can't find them anywhere else - i mean, there's no other default folder for saving pictures to, is there? i figured it was safe to assume that the shots were at least being saved SOMEwhere :P

and on the sound thing, i was just taking that to be an indication that there wasn't any picture being taken. if/when i get the intervalometer going, we'll see what happens then.

the one i found on ebay is here (sorry for lack of a neat link)
http://cgi.ebay.com.au/AV-Video-Cable-VC-100-for-Canon-Digital-Camera-New_W0QQitemZ120467035926QQcmdZViewItemQQptZAU_Cameras_Photographic_Accessories?hash=item1c0c651716&_trksid=p3286.c0.m14

completely unsuitable, a bit of a gamble, looks about right?


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Offline fe50

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Re: No Screen: blind navigation help
« Reply #8 on: 01 / October / 2009, 06:39:20 »
The Canon cable is a "AV cable AVC-CD300".

You're shooting with a script ? - the IXUS series, especially the SD750, has problems with the shoot command, often the camera crashes or don't shoot at all...  replace shoot with click "shoot_full".

With CHDK enabled & whithout a script - are the images stored on the card ?

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Offline whim

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Re: No Screen: blind navigation help
« Reply #9 on: 01 / October / 2009, 06:59:03 »
Quote
completely unsuitable, a bit of a gamble, looks about right?

AFAIK (going by my ixus70/sd1000 here) it should have a cam-side plug with 4, not 2 sections,
leading to 2 RCA plugs at the TV side (video+ mono-audio)...

wim
« Last Edit: 01 / October / 2009, 07:05:32 by whim »

 

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