Fun Circuits

Alarm Circuit for Drinking Water

This is the circuit diagram of drinking water alarm based a small water sensor by using aluminium foil and plastic…

54 years ago

Two Tone Train Horn based NE556 Dual Timer

This is the circuit diagram of two tones train horn which built based dual timer IC NE556. The circuit is…

54 years ago

Low Cost Mosquito Repellent

Here is the simple and low cost mosquito repellent circuit design. The circuit serves to keep the mosquitoes out of…

54 years ago

Bicycle Directional Lights

This is the electronic bicycle directional lights circuit that use inexpensive components and is a good substitute to many commercially…

54 years ago

7 Segment LED Digital Clock with IC MM5314N

This is the circuit diagram of digital clock based on IC MM5314N. The clock display uses 6 pieces of 7…

54 years ago

Metronome Sound Generator

This is the electronic circuit diagram of metronome sound generator. The circuit featured adjustable volume and beats/minute with potentiometers. LED…

54 years ago

Electronic Quiz Button Table

This is the circuit diagram of electronic quiz button table. This circuit is simple, easy to built and of course…

54 years ago

Scoring Display with 7 Segment LED

This is the circuit diagram of game scoring display using 7 segment LED. This circuit consist of a timer IC,…

54 years ago

Clap On / Off Switch

This is the circuit diagram of Clap On / Off Switch. The circuit allows you to operate your lighting or…

54 years ago

Traffic Baton with Bulb or LED Flasher

This is the traffic baton circuit which available in two versions that are traffic baton with LED flasher and traffic…

54 years ago