Category Archives: Projects

Complete electronics and embedded projects

Slugbee – The Finest Combination of Zigbee Radio with a Slug!

Have you ever wondered what it’s going to be, if you combined the Zigbee Radio with a Slug? If you have no idea what is the outcome, then you should develop this SlugBee and feel it for yourself!

For your information, Zigbee, where it’s also known as IEEE 802.15.4 is another type of short-range radio standard that uses the 2.4 GHz microwave oven band, wireless Ethernet and Bluetooth service.

slugbee-with-solar-breadboard

If you’re comparing Zigbee with others, it’s the most suitable component for low-power application that involving simple microcontrollers, such as the wireless sensing, home and industrial automation. Normally, the basic parameters of Zigbee are a data rate of up to 250 kbits/s and a typical range of 50m.

A small Linux box like the NSLU2 aka Slug could be useful in a Zigbee deployment. For your information, an always-on Slug can be responsible for logging data sent by remote sensors and generating graphs on web pages or sending email alerts.

The DLP design playing an important in this project, where it have a couple of modules. They both have an RF chip and a microcontroller. Beside that, it also has the advantages of the built-in USB at the host end and processor less operation at the remote end as well!

After you’ve connected the Zigbee radio with a slug, then it’s time to test out the SlugBee…

The Great PLL Induction Heater Driver

Have you ever played with a manually tuned induction heater before? If you did, then you must know that how dull it could be…

Oh, for those that didn’t know what the induction heater is that is a key piece of equipment used in all forms of induction heating. Technically, an induction heater will operate at either medium frequency (MF) or radio frequency (RF) ranges. There are three main components from the basis of a modern induction heater, such as the power unit (power inverter), the word head (transformer) and the coil (inductor).

This project is a little bit different from the normal induction heater driver, as it will include the Phase Lock Loop (PLL) into it. A phase lock loop is a control system that can generate a signal and it has a fixed relation to the phase of a “reference” signal itself. Since the phase lock loop circuit responds to both the frequency and the phase of the input signals, hence it raises or lowering the frequency of a controlled oscillator automatically, until it’s matched to the reference in both frequency and phase.

In overall, this PLL induction heater driver will be one of the magnificent projects that you’ve ever built!

A Fancy and Creative Graduation Gown!

If you’re currently attending a college or university, and the graduation ceremony will be held in several weeks or months from now, then have you done all the preparation for it yet?

Well, if you think that the graduation gown is a little bit dull and old-fashioned (Hopefully, it’s not the type of granny style ballroom party’s gown that being wore by Ron in the Harry Potter’s series lol), then it’s time to have some little bit modification on your graduation gown to make you stand out in the graduation ceremony…

Ok, it might sound a little bit over to modify your graduation gown, but this is the only way to leave an unforgettable memory during your graduation day! Well, for this project, you’ll need to build the VU meter into the graduation gown.

You’ll have to put 10 super bright blue LEDs lined up the front of the gown. These were a small electrets microphone that can be clipped at the top of the gown facing your mouth.

So, when you’re speaking, the LEDs will light up from the bottom to the top and it depends on the volume of your voice!

Remember to have a great moment with this awesome graduation gown

The Networked Graffiti Wall is Awesome!

Do you have a crush on the magnificent Graffiti Wall and wish to build it for your own use? Well, the only problem is you didn’t familiar with the Graffiti Wall and you may think it’s a hard to develop project.

Honestly, the giant LED graffiti wall project won’t take too much of time and money. Once you have built it, you can use it to watch a live feed of user animations.

If you refer to the above figure, you can clearly see that the TCP/IP graffiti wall is actually a very easy to develop project, where you need here are PC, Database, client and the graffiti wall itself! Continue reading

LED Sphere – Your Cool Home Disco LED Light Ball

If you’re looking for the Home disco LED light ball, then you’ve come to the right place.

Well, the main goal for this project is to create a 3D spinning LED Sphere, which uses a spinning ring with tri-color LED. Beside that, this project also practices the concept of precise angular sensing and persistence-of-vision as well.

Since the ring is spinning at about 1800 rpm, you need to find some wire that can really handle this speed (the piano wire will be the best choice, as it kept anything from coming loose at 1800 rpm) and will not loose out easily. Continue reading

The Cool Third Eye – Computer Vision Platform

Are you feeling alone when you sit in front of the computer? You want to have a companion? Then, this third eye – computer vision platform will accompany you and stay by your side.

However, you need to keep these materials standby:

  • Breadboard
  • Miscellaneous resistors and wire
  • Two 3.3V Regulators
  • Two Pic-Axe 08M
  • Motor Driver Chips
  • USB Wireless Camera
  • Recharagable batteries from old laptop
  • USB Wireless Camera
  • XBee Module Pair
  • Tamiya Tracked Vehicle Chassis Kit
  • Tamiya Dual Motor

Continue reading

DIY DOT Graffiti Painter

Do you love to spray your graffiti at public walls, but scared to be caught in red handed?

Well, why don’t create a DIY DOT Graffiti Painter and enjoy the fun of spraying as you wish?

Firstly, we need to have these following materials:

  • 8 12vDC direct acting 1/4″BSP solenoid valves
  • 3 inflatable wheelbarrow style wheels
  • Z4 Nuclear / Biological / Chemical test set box
  • A PIC 16F876A

Start the project with building a spray bar and back axle. You need to mount the three inflatable wheelbarrow style wheels on it. Then, you need to make the spray bar adjustable up and down.

After it, mount all of the eight solenoid valves on an old PCI blanking plate and hung it over the spray bar. Add the Z4 Nuclear / Biological / Chemical test set box to spice up the effect of the project. This tool features with a push button, a three position rotory switch and a 12 position rotory switch. These features made the controlling process even easier. Continue reading

Show Your Talent by DIY a Sun Tracking Unit

Probably you saw Sun tracking system before; however do you have the urge to challenge yourself to make a Sun Tracking Unit? First of all, get a tiny .7″x1.4″ PC board using the LED3X sensor concept. This circuit uses power … Continue reading

Eco-Friendly and CO2 Free – CallABike Concept

Are you a eco-green lover/supporter? If you are, then this “CallABike” concept will be a good choice to show your concern to the environment.

A Germany eco-concept company, Die Bahn offers a service named “CallABike” system.

This is the rental process for “CallABike”:

A customer calls the company via touch-tone and he/she will be provided four-digit number to open the bike. The customer will get another verification call after the lock had opened. Continue reading

Ready to Play MIDIbox SID 2

Have you ever try to combine four different types of engines to become a fun to play MIDIbox SID 2?

Well, MIDIbox SID is a non-commercial and “DIY” product, means you can only get it by doing it yourself.

Those four synthesizer engines are Lead Engine, Bassline Engine, Drum Engine and Multi Engine. Continue reading

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