This is LED emergency light that will turned on automatically when mains supply fails, and turned off when mains power resumes. This circuit produces highly […]
Electronic Schematic Diagram
Ultrasonic Distance Detector / Sonar Ranging System
This is the ultrasonic distance detector or sonar ranging system which can be used for general purpose. There are kit version available on the market, […]
Laptop / Notebook Protector
This is laptop / notebook protector circuit to protect your laptop or notebook or netbook from being stolen. Fixed in-side the laptop case, it will […]
Adjustable Symmetric 1 to 24VDC, 1A Power Supply
This is the circuit diagram of adjustable symmetric 1 to 24VDC, 1A Power Supply. This power supply give dual output positive and negatif output, you […]
Static Circuit Breaker / RFI Eliminator
This is the circuit diagram of Static Circuit Breaker.? Many a times you must have heard an undesired sharp sound emanating from the speaker, when […]
Speaker Protection Circuit (Stereo)
This is the speaker protection circuit, provides stereo speaker protection and prevents switch-on clicks and DC components on the output of the amplifier connected.
Digital Tachometer / RPM Meter
This is the circuit diagram of Digital Tachometer / Digital RPM Meter which can be used for cars or motorcycles with 2 and 4 stroke […]
Digital DC Voltmeter based ICL7107 Chip
Here is the schematic diagram of digital DC voltmeter built based IC ICL7107. The power supply for this circuit is +5V. You may use 9V […]
230V Automatic Night Lamp
This is the circuit diagram of 230V automatic night lamp based photo resistor to sensing the light environment. When the condition is dark enough, the […]
Clap On / Off Switch
This is the circuit diagram of Clap On / Off Switch. The circuit allows you to operate your lighting or any circuit device which use […]
