Canon EOS Camera Trigger

tag:blogger.com,1999:blog-55084201281021613372011-10-17T14:48:41.510+02:00Canon EOS Camera TriggerA project to create a micro-controller based camera trigger for my Canon EOS 450D SLR based on the Arduino Duemilanove SBC with Atmel ATmega168 processor.Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.comBlogger81100tag:blogger.com,1999:blog-5508420128102161337.post-23701274926915152132009-03-22T19:58:00.006+01:002009-03-22T20:44:31.434+01:00Trigger Time

Now I've got the human interface sorted, its time to sort the most important interface: The camera interface!The interface to the Canon EOS 450D is a 2.5mm stereo jack (Slightly smaller version of a normal headphone jack). The tip of the jack provides the shoot trigger, the centre of the jack is the focus trigger and shield (bottom) of the jack is a common ground for both shoot & focus. Power is

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com3tag:blogger.com,1999:blog-5508420128102161337.post-10732807521812664692009-03-21T21:33:00.004+01:002009-03-21T22:45:04.227+01:00Debouncing Switches

Well, now I'm properly under way with the project :-)The first job was to get the input sorted. The plan is to use a bank of four push switches which will align with hot-key style control's on the display. The first job here of course is to connect the buttons to the Arduino and recognising in software when a button is pressed.The circuit for this is really quite simple. Firstly, we take the

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com3tag:blogger.com,1999:blog-5508420128102161337.post-72246262624762367772009-03-20T14:45:00.001+01:002009-03-20T14:48:29.540+01:00Getting there

Well, not much progress lately. Its hard to start an electronics project when you don't have any electronic components! That has all changed today, since I just got a nice package in the post containing all the bits I need to get started. :-) How convenient its also the weekend, so maybe I'll also have a bit of quality free time to make a real start!!!Watch this space!

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com0tag:blogger.com,1999:blog-5508420128102161337.post-21776338937282488492009-03-04T17:08:00.008+01:002009-03-04T17:29:17.640+01:00

Well, the first parts arrived the other day, so I can finally start playing - How exciting :-PFirst up, I got my first Arduino Duemilanove board (I actually got 2 boards, one to play with and one for the actual project!). It really is a very impressive piece of kit and incredibly easy to set up.Within minutes I'd got the IDE downloaded and installed (that is to say, the USB drivers installed, the

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com2tag:blogger.com,1999:blog-5508420128102161337.post-13803838898432360522009-03-02T14:33:00.004+01:002009-03-02T17:19:23.548+01:00The Idea

OK, so the blog title already kind of gives away what my idea is, but a little more info would be useful!The idea is to trigger my Digital SLR camera from a selection of trigger sources:Audio trigger - Make a noise and a photo is takenLight trigger - Break a light beam and a photo is takenManual trigger - Press a button and a photo is takenIn each case, it should be possible to set various

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com0tag:blogger.com,1999:blog-5508420128102161337.post-58135652954003779862009-02-25T11:41:00.002+01:002009-02-25T12:01:00.846+01:00Inspiration

As I said in my previous post, I wanted to keep electronics as a hobby, but somehow I never managed to do anything.Part of the reason for this was due to a lack of time - work takes up far to much time and partying is also quite time consuming! Probably the biggest problem though was the lack of a great idea that really inspired me to start a project.I have toyed with the idea of starting a

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com1tag:blogger.com,1999:blog-5508420128102161337.post-37720448756767751752009-02-24T15:06:00.002+01:002009-02-24T15:36:45.947+01:00A little bit about me, electronics and software

Going back a long way, when I was about 9 years old, I got my very first computer, a Commodore 64! Unfortunately for me (or so I thought at the time), my Dad was prepared to pay for the computer but not prepared to pay for the games! His solution was to buy me a book of game program listings and let me type them in myself! Although I didn't understand what it was all doing at the time, it did

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com0tag:blogger.com,1999:blog-5508420128102161337.post-18925329795080298252009-02-24T13:54:00.002+01:002009-02-24T14:02:44.334+01:00What's this all about then?

Well, for many years I've been pondering about doing some sort of micro-controller project and finally I've decided what to do! Its all very exciting :-)This will be my first such project and, as it seems customary these days, I thought I'd create my first blog to detail what I'm doing as I go along with the project so that other people out there in the interweb can follow my progress, offer me

Alastairhttp://www.blogger.com/profile/10917560945787699185noreply@blogger.com0