Tag - light

LCD Glass Panel - Liquid Crystal Display

LCD Display – Fundamentals

LCD or Liquid Crystal Display is a flat electronic display which is very commonly used in digital watches, calculators, laptops, televisions etc. It make use of light modulating properties of  liquid crystal and polarization of light for its operation. Low power consumption, less thickness and less weight of LCD enables its use in battery powered and portable applications. Prerequisites Light is an electromagnetic radiation which stimulates sight and make things visible. It is produced by vibration of electric charges, having both electric [...]

Automatic Garden Light Controlling System

Just like my previous circuit using LM358 this is also very cheap,also under 100 rupees. This is a circuit for controlling the street lights,garden lights,automatically. You don't need to turn it on and turn it off again and again,  just turn on the circuit once and forget, it will automatically manage itself by sensing the available brightness in the garden or street. Circuit Diagram Working In this circuit the IC LM358 is working as a comparator. The transistor BC548 is wired as a switch to [...]