A 5-wire unipolar stepper motor (these could also be salvaged from old 5¼” floppy disk drives), ULN2003 IC (stepper motor driver), wire, stripboard (or a solderless breadboard ), solder and DB-25 Male connector (buy these two if you can solder. Soldering is not necessary for doing this project, but it will ensure that your connections are secure), DB25 (female/male) parallel port cable, a multimeter, a power adapter (with voltage rating depending on your motor’s requirements)
New Disposable, Medical Camera Is the Size of a Grain of Salt [via]
Thanks to a German research institute, in the very near future, we may not even see the cameras looking back at us at all.
It may not be news that camera technology is getting smaller, but it is newsworthy when an important milestone is reached. Take the announcement from the German Fraunhofer Institute for Reliability and Microintegration for example. They recently reported the development of a camera with a lens attached that is 1 x 1 x 1.5 millimeters in size, which is the size of a grain of salt. At about a cubic millimeter in size, this camera is right at the size limit that the human eye can see unaided. The camera not only produces decent images but it is also very cheap to manufacture…so cheap in fact that it is considered disposable.
New Disposable, Medical Camera Is the Size of a Grain of Salt – [Link]
Make an electronic circuit that will trigger camera flashes in sync with a thunder soundtrack (great for Halloween)! The camera flashes are salvaged from old, broken cameras. When used along with lamps plugged into a color organ circuit, it makes a very effective lightning effect.
Lightning effect using camera flash units – [Link]
This website shows how to build your own cheap thermographic camera. With it you can analyse your house, electrical devices, etc. and identify for example thermal lacks. This instruction requires a basic knowledge in electronics like soldering easy components and cutting/skinning wires.
Arduino Thermo-cam – [Link]
This entry for the 555 timer contest is from Andrew Smith who built a motion activated switch for a digital camera. The 555 timer is operating in monostable mode which is triggered by a PIR sensor when motion is detected. The monostable output of 555 then activates the camera through a remote.
555 Contest Entry: Motion activated camera – [Link]
Randy writes: [via]
I needed a foot switch for my DSLR camera so that I could take hands-free pictures. On a long-shot, I went down to the local Radioshack to see if they had one. As expected, they didn’t have any camera foot switches, but I did luck out that they had all the parts necessary to build my own. Here is how to throw together a 5-minute camera foot switch with easily obtainable parts from Radioshack.
5-Minute Camera Foot Switch – [Link]
Randy Sarafan writes: [via]
I decided to make a quality DIY intervalometer for my DSLR Pentax camera. This intervalometer should work with most major brands of DSLR cameras such as Nikons and Canons. It works by triggering the shutter using the camera’s remote trigger port. It can also auto-focus before each shot if so desired (or toggle this on or off at any time). The brains of this intervalometer is an Arduino chip. It may seem very complicated at first glance, but is actually a simple circuit and not that hard to make.
Pentax intervalometer - [Link]