Image hover effects using simple CSS and HTML are quite familiar among the web designers since it boost the attraction of a site. There are several types of image hover effects widely spread over the internet and today we are about to see a similar one in this article. This Image mask effect is nothing but a simple mask over the image before hovering and when hovered the mask will be removed to reveal the background picture. You can see the working of this effect in the Image hover effects collection page , lets move into the CSS and HTML coding of this effect.
|Cupboard Lighting Circuit|
Circuit that use to illuminate your cupboard or other such dark places have significant application because main connection is not possible in those areas. This circuit uses a simple battery to power the light and also built with a auto shut-off. This circuit will be a great alternative for traditional torches and also proves to be cost effective among all other lighting systems.
Waveform generator circuits are quite handy as we can employ those in several complex circuits as a feed to it. And square wave generator with IC 555 is very familiar and today we are going to see a circuit which employs IC 555 to generate sawtooth waveform. Sawtooth wave has several applications and its best known for its application in music. And before moving into the working of this circuit, you must understand the working of IC 555. Lets move into the working of this above Sawtooth generator circuit.
|Click over the image to view enlarged one|
Alarm circuits are spread wide over the internet and some of them are real simple to implement to do it self on our home. Each circuit needs different kind of trigger for activation of the alarm, some uses trip wire while other uses shadow detection, light interruption and other techniques. Here is a similar circuit which uses Infra red beam to detect the intrusion into any place and trigger the alarm attached with it. Here the circuit can be split into two types a transmitter part which used to generate Infra red beam while other is a receiver and alarm circuit used for to indicating intrusion.