This is door knob touch alarm for your home security purpose. The alarm will be activated when someone touch the metal door knod. This circuit won`t work on full metal door. Now we use the batteries are circular, here the designers propose a new concept to design six-sided shape for battery, place the whole up and that is cellular, and compared to
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the gap of the round, its unique modeling can save a lot of packaging and shelf space, and because it is angular, it is not as round as we do not know where to roll when placing it on the desktop. Perhaps few people know Philippe Starck, but he is a wizard designer from Paris, even more he was known for his devils architect, his work almost cover everything about modern life. His brilliant ideas and refined let the world wonder and be incredible again and again from the Microsoft design style different mouse to the new company produced the LED lamp design embodies a wide range of cooperation, the main lighting design by French designer Philippe Starck completed the text on the poles by the American artist Jenny Holzer design, electronic components from the accountant Moritz Waldemeyer, crystal material is from the King of Baccarat crystal brands, and finally by the complete Flos lamp manufacturing. Hooo! Is a limited edition of the lamp, the lamp is so rare appearance of fashion, highlights a tall, low-key luxury and taste. In addition to Hooo! Lamp Crystal white LED display along the centerline layout, LED hand-made geometric matrix and the interaction of Baccarat crystal designed Holzer text will become lively and interesting, attractive attention. "Hooo!" Lamp Flos Milan Design Week 2010 exhibition on display. Philippe Starck in Milan Design Week 2009, exhibited the prototype of this light. Electronic circuit design,...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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