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About This PresentationIn this presentation we have mentioned some mini electronic circuits, the complete information of these electronic projects can be found by clicking on the link given at the bottom of each circuit diagram.

Sensitive Sound To Light Project

A very useful sound to light project that can blink LEDs on Voice or Music.

For complete information about this project click here > Sound To Light LED Project

Non Contact AC Voltage Detector

Non Contact AC Voltage Detector Circuit. It flashes and LED and beeps a buzzer when AC voltage is detected.

For complete information about this project click here > Non Contact AC Voltage Detector

Temperature Sensor Relay Switch

Simple and low cost circuit of a temperature sensor relay switch.

For complete information about this project click here > Temperature Sensor Relay Switch

Simple 12V & 6V Battery Charger With Auto Cut off

A simple & easy to build versatile & adjustable automatic battery charger for 12V, 6V & other voltage batteries with 5A, 10A or more charging current depends on relay used.

For complete information about this project visit : http://www.circuitdiagram.org/12v-6V-battery-charger-with-auto-cut-off.html

555 Repeating TimerThis is an adjustable repeating timer using 555 IC. A relay switch is connected at the output to control AC & DC appliances.

For complete information about this project click here > 555 Repeating Timer

Low Battery Voltage Cutoff Or Disconnect Circuit

This automatic low battery disconnect circuit will disconnect the battery from the load to save it from deep discharge / damage.

For complete information about this project click here > Low Battery Voltage CutOff Or Disconnect

This simple long duration timer using 555 timer IC can be adjusted from few minutes to many hours.

For complete information about this project click here > Long Duration Adjustable Timer Using 555

Long Duration Adjustable Timer Using 555 Timer IC

A completely automatic circuit of water pump controller using 555 timer IC. Very simple, reliable and low cost circuit.

For complete information about this project click here > Automatic Water Pump Controller

Automatic Water Pump Controller Circuit

A very simple laser security alarm using only a single transistor & few other components.

For complete information about this project click here > Simple Laser Security Alarm

Simple Laser Security Alarm.

A simple latch switch can be built using only two transistors. Using a relay switch at the output to control AC or DC appliances.

For complete information about this project click here > Latch Switch Using Transistors

Latch Switch Using Transistors.

This mains fluctuation time delay circuit will save electrical appliances damaging from sudden mains voltage fluctuations.

For complete information about this project click here > Mains Fluctuation Detecting Time Delay

Mains Fluctuation Time Delay.

A smart door bell that will become activated when someone knock on the door. The circuit is quite sensitive & can even detect a very slight knock.

For complete information about this project click here > Door Knock Activated Bird Bell

Door Knock Activated Bird Bell.

This is a project of a universal automatic battery charger using 555 IC. The circuit can be adjusted to charge any voltage battery.

For complete information about this project click here > 555 Universal Automatic Battery Charger

555 Universal Automatic Battery Charger.

This useful main gate night light project can be used for security and power saving purposes.

For complete information about this project click here > Motion Sensing Main Gate Night Light

Motion Sensing Main Gate Night Light.

A very simple and low cost plant watering or irrigation control system can be built using this circuit.

For complete information about this project click here > Automatic Plant Watering / Irrigation Control

Automatic Plant Watering / Irrigation Control.

These are the few mini electronics projects from our website, there are hundreds of more new & unique electronics projects on our website, and new projects are added frequently.

visit: http://www.circuitdiagram.org/ more electronics projects.