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About This Presentation In 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 circuit diagram sound to light LED 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 circuit diagram 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 Timer This 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
Long Duration Adjustable Timer Using 555 Timer IC 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
Automatic Water Pump Controller Circuit Circuit diagram of completely automatic 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
Simple Laser Security Alarm. 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
Latch Switch Using Transistors. 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
Mains Fluctuation Time Delay. 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
Door Knock Activated Bird Bell. 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
555 Universal Automatic Battery Charger. 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
Motion Sensing Main Gate Night Light. 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
Automatic Plant Watering / Irrigation Control. Circuit diagram of a very simple and low cost plant watering or irrigation control system.
For complete information about this project click here > 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/ for more electronics projects.