K110 Digital clock and thermometer

In this tutorial I am going to show you how to make a digital clock with led display of 2.3 inches as well as a temperature display. The clock is one of the most usual devices at home or in the office and a DIY (Do It Yourself) construction will be useful not to mention […]

K100 Electronic little heart

The electronic little heart that we present here is a nice construction of visual effects, easy to construct, which can be given as a gift. It consists of 22 bright red LEDs arranged in heart shape, which are flashing in different combinations giving a pleasant visual effect. Description The circuit of our construction is based […]

Liquid crystal displays

A liquid-crystal display (LCD) is a flat-panel display that uses the light-modulating properties of liquid crystals. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in colour or monochrome. LCDs are available to display arbitrary images, as in a general-purpose computer display or fixed images with low information […]