HOW-TO: Make a phone alarm dialer

To monitor and to protect your house from intruders a new modern device has been developed called Alarm Phone dialer. You can fix/hook this technologically advanced device anywhere in your house. It’ll enable you to monitor your house at times when you are at work. The device can be easily hooked at your house for example main door, back doors, windows, garage doors, to get high water alarm, low temperature alarm etc. This new security system can be activated to call programmed numbers and after pressing ‘Pokreni dojavu alarma’ button the system gets ready to dial and assures that phone call is successfully programmed. Its programming mode can learn several numbers and after detecting an input on its sensor pin this module can call users to report an unpleasant incident and the users can press pound key ‘#’ of their mobile to stop the device from calling another number or again. Check out how to programme numbers on this device, as depicted by Alan Parekh: 1. Press the program button 2. Pick up the phone that is connected to the same phone-line as this device 3. Punch-in first number and then ‘*’ key 4. Punch-in next number followed by ‘*’ key 5. Punch-in the rest of numbers and finally ‘*#’ for example: 061123123*061456456*# The device uses MT8880 DTMF dialer chip and a PIC 16F84A microcontroller and can learn 64 characters or digits including * and # keys. Via: Makezine

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

HOW-TO: Make a liquid battery

When you need a cellphone and its battery is over then you run to fetch the charger and connect it to a power line. Have you ever wondered what would you do if there is a complete power failure…? Here is a simple solution, a liquid battery that can be built with an investment of $20 and a time of three hours. Though I am not very sure that this can run your cell phone, but it will surely give you an idea of how things work. All you will need is copper sulfate, distilled water, copper electrodes, and crow’s-foot-zinc electrode. All you need to do it is to: � Pour copper sulfate (the blue granules) over a copper electrode in a glass. � Fill it with distilled water. � Add a crow’s-foot-zinc electrode, and short-circuit the battery for 24 hours to kick-start the battery reaction. � Connect to the device of your choice. Yields one volt. Via: popsci

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

HOW-TO: Upgrade your Core 2 Duo Mac to support 802.11n

Apple has introduced a new N-based standard in its latest computers. This is making the machines run on super fast wireless speeds. This is good news for some latest Mac owners and bad for the early Mac lovers. What if you are one of those unfortunate MacBook Core Duo owners that are stuck in that old and slow 802.11g land? Here is a step-by-step guide to convert your old Macbook and MacBook Pro to support the latest N standard. Click here for the detailed procedure. Via: gizmodo

Tags: , , , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

HOW-TO: Make a FM transmitter

FM transmitters can be used to stream music from your iPod to your car stereo system. It would still be better if you can make one for yourself without spending all your savings in the projects. The DIY will cost you around $5 and can be made from stuff lying idle in your storeroom. Click here for the detailed procedure. Warning: In some countries it is illegal to transmit radio on the FM band without a license. Via: Hackedgadgets

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

Dry ice bomb,water bottle,Technology

Can you imagine one can create panic among people by Ice bomb? You do not believe me but it is true. When you think about bomb what comes in your mind? I think it is definitely RDX, chlorine and uranium etc. But do you know bomb one can create Ice bomb with in 15 minutes. You do not believe me but it is true. I know ice keeps us cool but it can be blasting also. Composition of dry ice: Dry ice is solid carbon dioxide. At normal temperature it evaporates directly from solid to gas, resulting in a tremendous increase in volume. From where you can get dry ice: Dry ice is available at any departmental store or you may be able to ask for it at ice cream shops. Risk factor: danger level depends on you. It can be negligible to high level. Materials and tools: 1. Plastic water bottle or similar (Soda bottles, like Coke, etc.). 2 Chunk of dry ice. 3. Hammer 4. D. Glove 5. E. Sharp knife Total time: It will not take more than 10 to 15 minutes to make it. The making of ice bomb: you can break the dry ice into small pieces with a hammer in a way that these chunks should fit through the neck of the bottle. A knife can score the side of the bottle that creates a weak spot where the bottle can break cleanly. Then Insert 15-20 chunks of dry ice into the bottle. To make your bomb explode faster, you can add more ice. You should use thick gloves to protect your hand. In the last, pour in enough water to cover the dry ice. Water increases the sublimation that results in explosion. Generally it will take 10-30 seconds to explode, but it could take longer. Be very careful about approaching or touching a bottle that hasn’t exploded. Suggestion: Kids please don’t try this. Read

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

DIY indestructable USB drive

When Russell Jones’s Corsair 1GB Flash Voyager USB drive’s keychain was broken, he was sort of inspired to make an indestructible drive by making an aluminum case for it. Check out this cool step by step USB mod to try your hands with your flash drive too. Via: neatorama

Tags: , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

Your discarded hard drive gets a makeover!

Now heres some cool innovation to speak of. Seriously telling you this now don’t ever try to throw away your discarded, old hard drives. They can be of great help to be used as a spring speaker as an attachment to your any music accessory, lets say your music system. This new and a bit vague idea was propped from the hard-drive recycling ideas on hacked-gadgets, so why not give it a go. Mr. Brian made some facts clear about this remake, he said -’One drive was bolted to a metal plate and the plate bolted to a heavy vice. The vice was bolted to a piece of wood. The other drive is just held in place with a smaller vice. As can be seen in the first picture at top, the circuit board was removed from the drive and 2 connectors on the back are connected via alligator-clips to the speaker output of a normal stereo amplifier.’ I certainly think that if you can get something more productive and that too out of your oldies and the discarded stuff, why not we should try it then, not a bad idea to pertain at all. Via: Hackedgadgets

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

HOW-TO: Make 5V from 1.5V

Here is a neat DIY process by PopSci guys at instructables on how to take 1.5V to 5V. The process explains the technique of producing 5V DC from a single 1.5V DC AA battery. For the conversion, you need MAX1674 IC, which is a step-up converter capable of taking in voltages as low as 0.7V and give out digital circuit stirring 5V. Well, high current projects engaging motors won’t be able to real the benefits as MAX1674 offers a steady-state output current between 180-420 mA. Check out the full details.

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

HOW-TO: Make an old timey Skype phone

Although this is cool and creative but I must say not so innovative, Anyway, Technick29 got inspired from a cool looking phone toy and then converted it into Skype. You won’t find any sort of difficulty to find an old phone looking toy, computer headset, hot glue gun, soldering iron, and hacksaw, the items which are needed to make this old timey Skype phone. Click here to read the step by step instructions to make one on your own.

Tags: , , , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS

Light Wind: lights up your streets

Dutch design house Demakersvan proclaims: We are plain but love the impossible. We respect the old but want the new. We want to challenge, confront the normal, the accepted, the expected. And this is exactly what they have done by coming up with a wonderful way to light up our surroundings. Light Wind is a (believe it or not) wind-powered outdoor lamp. It combines clever Dutch design and the clean energy technology of the Dutch windmills. Made of stainless steel, wood, and sail fabric, the 7.9 ft. tall freestanding structure converts wind power into light with a propeller having a wingspan of 6.5 ft. As the propeller spins in the breeze, the motion powers a soft light in its base. Not only is it a wonderful way to enjoy the summer evenings outside, but its futuristic design makes it ‘a self supporting light source that marks the landscape.’ So if you live in a windy place, get one of these and save on those hefty electricity bills. Contact the designers on the official website to know about the costs involved. Via: makezine

Tags: , ,

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • Twitter
  • RSS