Cheap Motorcycle Alarm

54 years ago

This is simple to build and cheap motorcycle alarm circuit which could be fitted in motorcycles to take care of…

Cheap Hearing Aid

54 years ago

Here the cheap hearing aid to help people who have hearing loss. Commercially available assistive hearing devices are quite expensive.…

4-Output Stage (5V/6V/9V/12V) Stabilized DC Power Supply

54 years ago

This is definitely an effective 4-output stage stabilized DC power supply unit for testing electronic circuits. It delivers very well…

220V / 200W Lamp Flasher

54 years ago

This is the 220V / 200W lamp flasher circuit diagram. The frequency/speed of the lamp flashing can be adjust with…

Low Cost Water Pump Controller

54 years ago

Here the circuit diagram of low cost water pump controller. The automatic pump controller minimizes the need for any manual…

Fire Alarm with LDR Sensor

54 years ago

This is the fire alarm circuit which use LDR to sense the smoke from the fire, so it can be…

ADC0808 – Simple Analoque to Digital Converter

54 years ago

ADC0808 - Simple Analoque to Digital Converter This is a very simple analoque to digital converter circuit based on 8-bit…

Heat Detector + Siren

54 years ago

This is the diagram of heat detector circuit which already integrated with siren circuit in the output. This circuit applies…

Low-Cost and Simple Intercom

54 years ago

This is a low-cost and simple intercom circuit design. Some intercom circuits is build by applying integrated circuits. The circuit…

Automatic Switching-on Emergency Light

54 years ago

Automatic Switching-on Emergency Light The schematic diagram shown right here is the automatic switching-on emergency light circuit which is controlled…