Archive for December, 2009

Let it be made!

Posted: December 28, 2009 in Mechanical

Here’s a little video of the machine working:

My projects doesn’t make them self, and if you want to make a project that looks nice you need some kind of machinery for the mechanical parts. Thats why I build my first cnc machine (more…)

Vein watcher

Posted: December 16, 2009 in Uncategorized

This project has a certain purpose, in hospitals the doctors or assistents has to inject people with needles, now they also have to inject baby’s. The problem is these so called neonates have very chubby hands so you easily miss a vein, while injecting the needle. To overcome this problem I build a very simple and cheap device to make the veins visible and make it easy to see where you have to inject the needle.

The solution is a very simple (more…)

Autocam, Camera with PIR sensor

Posted: December 14, 2009 in Uncategorized

Camera with PIR sensor for less then 10 euro!

This project I build just because I found a nightlight with PIR sensor and a mini digital camera for really cheap. I thought about using it for monitoring something like our cat´s entering and exit the house or point it at the garage door just for fun, to see what photo´s it would give me. It takes a photo (more…)

Cheap whistle sensor as an input device

Posted: December 8, 2009 in Uncategorized

Here’s my implementation of a cheap whistle sensor as input device for a microcontroller.

I build it a little time ago, because i have a light-switch in my room and it switches by pulling a cord. For me the whole project was to switch the light when I whistle. The implementation of the whole concept was quite clear, I would use a servo to pull the cord, a microcontroller to drive the servo and a “sensor” to detect the whistle. To make it easy and cheap I find (more…)

Robotic metal finder

Posted: December 2, 2009 in Uncategorized

One of my first project’s I documented on my computer, was this so called “Robotic Metal Finder”. I build it from scratch I had laying around in my room, doing nothing so I thought it might be a nice little project to make. The whole project is powered bij an little but powerfull AVR Attiny13, that controls the interrupts of from the metal detector, and it controls the “left, right, backwards and forwards” of the RC-car. The input from the metal detector is created bij an voltage that is driving a LED to let the user see that it has found metal. The control of the RC-car is done bij some wires from the Attiny ports to the “Base” of the transistors on the RC-car’s PCB. A really simple construction, but héy it works! (more…)