One of my current projects is an Arduino powered camera trigger. I made one using my Arduino a laser pointer, and my digital camera. At first I thought it would be no big deal, but it took a little more effort because of the camera I was using. My Canon Powershot does not allow for remote shutter controll by default, but after a little inernet-vestigation I stumbled on the CHDK (Canon Hack Development Kit). After some firmware hacking and a couple components; I was up and running…
The Key is the CHDK firmware that allows the remote shutter trigger. The laser reflects off of a mirror onto the photoresistor. The photoresistor is being measured by Analog 0. When the beam is broken the Arduino runs through a series of high and low on digital 12 (with varying delay to account for the auto focus feature of the camera). This then triggers the camera to focus and take a picture.
Connecting the camera to the Arduino is done by modifying a mini USB cable. There is a USB remote cable page on the CHDK wiki with instructions/diagrams for making a Homebrew remote. So I just used that but left out the switch and battery because the Arduino would act as the switch power source. We’ll be using the +5V (red wire) and Ground (black wire) – (see below for picture of cable, code, and more pics)
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — “Silicon Valley startups invade Best Buy”
Wearables — Bringing cosplay to life
Electronics — Is your op amp going crazy?
Biohacking — mPort is Making a 3D Body Scanner Booth
Sorry, the comment form is closed at this time.