Alarm

Laptop / Notebook ProtectorLaptop / Notebook Protector

Laptop / Notebook Protector

This is laptop / notebook protector circuit to protect your laptop or notebook or netbook from being stolen. Fixed in-side…

55 years ago
Car Anti-Theft Protection with BuzzerCar Anti-Theft Protection with Buzzer

Car Anti-Theft Protection with Buzzer

This is the circuit diagram of car anti-theft to protect and increase the security of your car, prevent your from…

55 years ago
Simple Mat Alarm SwitchSimple Mat Alarm Switch

Simple Mat Alarm Switch

This easy to built circuit produces a warning beep when somebody crosses a secure area in your home or place…

55 years ago
Light Fence with LDRLight Fence with LDR

Light Fence with LDR

This is the light fence schematic diagram uses LDR as the light sensing. The fundamental issue with the greater part…

55 years ago
Water Level Indicator using 7 Segment LEDWater Level Indicator using 7 Segment LED

Water Level Indicator using 7 Segment LED

Here the water-level indicator which use a 7-segment display, to show the water level (low, half and full) in the…

55 years ago
Notebook Anti Theft ProtectorNotebook Anti Theft Protector

Notebook Anti Theft Protector

Here the notebook anti theft protector circuit to secure your important netbook / notebook from stealing. Basically, this is a…

55 years ago
Musical Bell with Touch SwitchMusical Bell with Touch Switch

Musical Bell with Touch Switch

Here the circuit diagram of musical bell with touch switch and timer. This circuit is designed around CMOS IC CD4011…

55 years ago
Power Supply Failure AlarmPower Supply Failure Alarm

Power Supply Failure Alarm

This is the 'special' circuit design of power supply failure alarm. The vast majority of the power supply failure alarm…

55 years ago
Shutter GuardShutter Guard

Shutter Guard

This is the shutter guard circuit which has sensitive vibration sensor, piezo-sensor. This circuit is specifically designed for outlets to…

55 years ago
Automatic Switch-Off Staircase LightAutomatic Switch-Off Staircase Light

Automatic Switch-Off Staircase Light

This is the circuit diagram of staircase light with automatic switch off. It based on timer which is can be…

55 years ago