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Automatic Water-Level Indicator

Automatic Water-Level Indicator

Here’s a simple water-level indicator for overhead tanks that uses three LEDs (LED1,...

CELL PHONE OPERATED ROBOT

CELL PHONE OPERATED ROBOT

CELL PHONE OPERATED ROBOT This project introduces the use of mobile phone for...

Introduction to Relays

Introduction to Relays

RELAYS What are relays? Relays are electromechanical devices that use an electromagnet to...

Tiny Cylinder in Power Cords & Cable. Why?

Tiny Cylinder in Power Cords & Cable. Why?

Ferrite Bead: Tiny Cylinder in Power  Cords & Cable. Why? Have you ever noticed...

ELECTRONIC MOSQUITO REPELLER

ELECTRONIC MOSQUITO REPELLER

Basic principal of this circuit is to connect a such type of buzzer...