Water sensor is a little unit which is used to give an audible alarm when a hose of the washing machine has burst or when it starts to rain, so […]
Bicycle Light and Alarm Circuit
The post illustrates a simple bicycle light circuit which can be used as a normal front/back indicator lights, and also as an emergency alarm signal such as an SOS signal. […]
IC 555 NiCd Battery Charger Circuit
The post details a simple IC 555 based NiCd charger circuit which can be used for charging all types of nickel cadmium batteries with great accuracy. Charging a 12 V […]
Dog Barking Sound Simulator Circuit
In this post we learn how to make a simple dog barking sound generator, which will simulate an exact dog bark sound through an electronic circuit. The music synthesizer was […]
Mini Running Light Circuit
The post explain how to make a simple mini running light circuit using a couple of ICs 555 and UAA170 As the figure shows, the UAA170 circuit is being used […]
Simple Burglar Deterrent Circuit
The basic principle applied to create burglar deterrent circuits the world over is to detect an unwarranted presence and ring an alarm or effect some kind of activity to alert […]