Do you have interested on laser projector and always wondering how does it work? You maybe think that developing a laser projector project will cost you a lot of money. Ok, if you are being told that you could create a lost cost laser projector, would you like to build one for yourself here?

The main objective of this laser projector is to create a character projector, which it can be used to interface to a mobile device or even linked to a PC via a serial port. By simply switching on and off a laser beam, it will be reflected off a rotating polygonal mirror and it’s possible to display dot matrix style text onto any surface. Read more »

For most of the home hobbyists, one of the most common breadboards to you must be the Arduino type breadboard! The reason why the Arduino breadboards are so popular because of its high quality and cheaper cost than other boards.
You can find Arduino Breadboard available in many types and the Arduino Nano is the smallest, complete and breadboard friendly of all. Arduino Nano is a fine surface mount breadboard embedded version with neat integrated USB on it. The Arduino Nano was been well designed and is being produced by Gravitech.

Arduino Nano has everything what Diecimila has. Plus, it has more analog input pins and onboard +5V AREF jumper. Maybe you will find out that power jack and power select jumper was missing in Nano. Well, since the Nano can be automatically sensed and switch to the higher potential source of power, thus it’s no need to include the power select jumper on it!
Another interesting feature about the Nano is it got the breadboard-ability of the Boarduino and the Mini+USB with smaller footprint, thus you will have more breadboard space here. Beside that, it also has a pin layout that works fine with the Mini or the Basic Stamp too!

Are you always fascinated about robotic arms and you’re wishing to build up your very own robotic arm? Well, if someone says that you can build an interactive robotic arm with only woods, then will you love to try it?

The main objective of this project is to develop a robotic arm, which can be used in most any direction like a humanoid arm. If you want to make this Wooden Menace a more useful, then you can adding a pair of grippers on the end. The grippers will be used to grip any trivial objects, such a piece of paper, pen, envelope, or any stationary items!

You can easily develop this project, as it is a simple design with a few moving parts. Thus, a PIC18F452 will be more than enough for it! This potentially limits the ability to control the arm with smooth movements.

Since this Wooden Menace robotic arm could be made out of generally cheap household items, the cost for creating this project won’t be too much.

So, if you’re curious about this Wooden Menace robotic arm project, then what are you waiting for? It’s time to create your own robotic arm!

Have you ever seen or used any radiation detector before? If you haven’t, then you must be wondered what the main purpose of this stuff about, isn’t it? Well, radiation detector was mostly used for medical diagnoses, radioactive dating measurements and any measurements of background radiation, activity levels and radiation doses. Thus, radiation detector is a very common tool in hospital and medical treatment center!

Today, you’re very lucky, as you will have the chance to meet “Mr.Fission”, the smart radiation detector. Mr.Fission is wearing an all black suit and you’re going to to love it! For your information, this design is based on a Motorola MC68HC908KX8 microcontroller. Theoretically, the MCU will take the place of the inverters oscillator, by simply using one of its timer outputs and the detector stage will convert pulses from the Geiger-Mueller tube into interrupt request signals.

As a result, the processor will count the pulses and uses a 16×2 LCD display, which it is help to show a 1-minute count average, a miliRoentgens/hr reading and a bargraph display with a 3-second integration period.

So, it’s about time to take action with this cool “Men in Black”, let’s go!