{"id":7301,"date":"2012-03-20T17:20:37","date_gmt":"2012-03-20T21:20:37","guid":{"rendered":"http:\/\/scruss.com\/blog\/?p=7301"},"modified":"2012-03-20T17:20:37","modified_gmt":"2012-03-20T21:20:37","slug":"a-very-quick-guide-to-using-a-remote-release-with-chdk","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2012\/03\/20\/a-very-quick-guide-to-using-a-remote-release-with-chdk\/","title":{"rendered":"a very quick guide to using a remote release with CHDK"},"content":{"rendered":"

CHDK<\/a> allows your Canon P&S to do nifty things. One of them is to rig up a USB Remote Cable<\/a>. Someone on Metafilter asked<\/a> how to set this up, so here’s what worked with me and my PowerShot SD790is<\/a> (Ixus 90).<\/p>\n

!!! Warning<\/strong>: this requires you to apply unauthorized voltages to your camera. If in doubt, don’t<\/span><\/em>. Check the CHDK camera-specific page for notes on voltages. Don’t hold me responsible if you let the magic smoke out of your camera !!!<\/span><\/p>\n

You’ll need to install CHDK first. What you download and how you install it depends on your camera model and the memory card your using. This<\/a> might help.<\/p>\n

The good news is that CHDK comes with the remote script built in, so you don’t need to download anything else. You will need a suitable remote trigger, or a cannibalized USB Mini-B cable.<\/p>\n

First, call up the CHDK menu. On my camera, that’s the Direct Print button (looks like this: \"\"), which puts CHDK in Alt<\/strong> mode. Hit Menu in Alt mode, and you should see this menu:<\/p>\n

\"\"<\/p>\n

Scroll down to Miscellaneous Stuff<\/em> and select it:<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

Scroll all the way down to Remote Parameters<\/em> (or, more quickly, scroll up, and the menu wraps round):<\/p>\n

\"\"<\/p>\n

Now Enable Remote<\/em>:<\/p>\n

\"\"<\/p>\n

Go back to the main menu, and scroll down to Scripting Parameters<\/em>:<\/p>\n

\"\"<\/p>\n

Select Load Script from File …<\/em>:<\/p>\n

\"\"<\/p>\n

Enter the EXAM<\/em> folder:<\/p>\n

\"\"<\/p>\n

Select REMOTE.BAS<\/em>:<\/p>\n

\"\"<\/p>\n

Now you’ll be taken back to the Script menu, and the bottom of the menu shows that you’ve enabled the Remote button<\/em> script:<\/p>\n

\"\"<\/p>\n

Exit the menu, and hit the shutter button to extend the lens. You’ll get a normal display, a bit like this:<\/p>\n

<\/p>\n

To allow the remote script to run, hit Direct Print\/Alt, and the bottom of the display will show that the remote script is running:<\/p>\n

\"\"<\/p>\n

Now you’ll need to rig up a trigger. I cannibalized an old USB Mini-B cable, and connected the black wire to ground, and the red wire – momentarily – to +5V. You will likely come up with something much more elegant.<\/p>\n

\"\"<\/p>\n

And here’s me triggering a shot (you can see the amber focus\/flash LED lit) by touching the red wire to +5V:<\/p>\n

\"\"<\/p>\n

That’s all there is to very basic remote work in CHDK. Note that USB Remote V2<\/a> is in development, which allows finer control and many more options.<\/p>\n","protected":false},"excerpt":{"rendered":"

CHDK allows your Canon P&S to do nifty things. One of them is to rig up a USB Remote Cable. Someone on Metafilter asked how to set this up, so here’s what worked with me and my PowerShot SD790is (Ixus 90). !!! Warning: this requires you to apply unauthorized voltages to your camera. If in […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[11],"tags":[1468,2032,1438,229],"class_list":["post-7301","post","type-post","status-publish","format-standard","hentry","category-photo","tag-chdk","tag-remote","tag-sd790","tag-usb"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pQNZZ-1TL","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/7301","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/comments?post=7301"}],"version-history":[{"count":8,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/7301\/revisions"}],"predecessor-version":[{"id":7326,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/7301\/revisions\/7326"}],"wp:attachment":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media?parent=7301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/categories?post=7301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/tags?post=7301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}