This great project uses the a soleniod’s magnetic coil, a Hall sensor, and Arduino to perfectly levitate a magnet. The Hall sensor detects the field of the permanent magnet and uses that information to modulate the magnetic field of the electromagnet. If you’re unfamiliar with the Arduino, see our Arduino tutorial and top arduino projects.

• Buy all sorts of magnets in our store
• Don’t miss: Incredible Liquid Magnets
• More powerful magnet projects

Related DIY Projects:

1. Introduction to the Arduino How to Tutorial
2. Another LED Gmail Notifier
3. Buy 5mm and 20mm LEDs in our store.

Using sensors, an old PC, LCD screen, lots of sensors and few X10 home automation parts, one man built a mini-house in his backyard packed full of electronics.ﾃあ The house also features a flickering LED fireplace and a Disneyland-like magic mirror.ﾃあ Although the house was built for two girls, the circuitry used is fantastic and you can learn plenty from the tutorial.

Update – You can now buy the software and hardware needed for the project at the DIY Magic Mirror website.

Using the endless powers of the Arduino, one man built a keypad entry security system using the Arduino and some servo motors.ﾃあ The project also uses a speaker to verify the door is locked.ﾃあ Luckily, the project has detailed build instructions along with the schematic and code.

1. Find low cost keypads on eBay
2. Full project build details.
3. Buy DIY project supplies in our store.

Using the Arduino, and a couple LEGO motors and sensors, build your own self balancing segway-like robot.ﾃあ We recently saw a similar balancing robot using a far more simple design.ﾃあﾃあ There aren’t too many details posted about the build yet, but you can read more about the project and watch the demonstration video:

Related tutorials:

• Arduino Tutorial: Everything you Need.
• Build a Laser Harp using the Arduino.
• HacknMod’s Robotic Projects archive.

• Hardware
• Software
• Measurements and Benchmarks
• Resources

Related Tutorials

You may also enjoy our iPhone Controlled RC Car article as well as our comprehensive “learn everything you’ll ever need” Arduino tutorial.

Update! Don’t miss our famous article:ﾃあ Top 40 Arduino Projects of the Web.

Previously we introduced you to the Arduino and itﾃ｢竄ｬ邃｢s awe-inspiring incredibleness. Now weﾃ｢竄ｬ邃｢ll take you on an in depth plunge with enough resources and projects to keep you occupied for the next decade.ﾃあ The best place to get started would definitely be their comprehensive website. I strongly encourage you to browse their resources. They have vast tutorial, learning, hacking and reference sections. Plenty of other websites feature all sorts of arduino projects:

Arduino Tutorials:

1. As usual, Instructables has plenty of tutorials also.
2. If you’ve ever thought, “Can the arduino do…?” Freeduino database has the answer.
3. Ladyada has plenty of information to get you started and more projects to keep you going.
4. This very useful site has outstanding “class notes” to learn from.
5. Makezine has covered plenty of Arduino projects in the past

The Arduino uses the ATmega168. After programming the chip, you can remove it and use it as a standalone with the addition of a single crystal. ﾃあ We enjoy using it, it’s simple to learn, and can be programmed to do plenty of functions, including robotics. For more fantastic guides and tutorials like this one, subscribe to the HacknMod RSS Feed.

There are plenty of methods to allow your gadgets to communicate wirelessly: Bluetooth, radio frequencies, and of course, IR LEDs just to name a few.ﾃあ Today we’ll teach you how to use IR LEDs as communication devices for your projects. Infrared light is invisible to the human eye, but can be picked up by cameras.

• This tutorial has some simple circuits and explanations.
• Johnny Lee has plenty of fantastic videos using IR LEDs for communication using the WiiMote.
• Each button on a universal remote emits a unique, rapid pulsation of IR light. You can capture these codes and use them to control an Arduino. “If code 100111001 then blink pin 12.”
• Further info can also be found here and here too.

The HacknMod Storeﾃあsells IR LEDs! Only 4.99 for a 20 pack – Grab some for your next project while our supplies last.

Using a magnetic strip reader incorporated with, of course, an Arduino, you can scan what those strips and see the data stored on it.ﾃあ A bit more hacking and you could also write data back onto the card and create duplicates as well. If you’re willing to set up additional hardware, you can check out the Stripe Snoop software.ﾃあ It will turn that computer lingo into actual decipherable characters.ﾃあ Check out the tutorial to get started.

Servo. The word itself is reeks with coolness. Combine that with the power of the WiiMote joystick and an arduino to… steer a boat or plane for example. We’ve found two fantastic tutorials to get you started in your WiiMote joystick controlled mod.ﾃあ First up, you’ll need to learn the basics of arduno servo control using a potentiometer.ﾃあ Basically, if you turn the pot to the eight, the servo copies. If you turn it to left, same thing.

After you’ve mastered the potentiomenter, let’s move onto servo joystick control.ﾃあ Slightly more complicated, but nothing you can’t handle.ﾃあ Finally, apply your joystick mastery to something useful, like controling a boat rudder. Don’t no much about Arduino? Learn from our Arduino 101 tutorial.ﾃあ The video below is a bit slow, skip through to see how the system works in more detail.