Burglar Alarm using Arduino and PIR Sensor with SMS Alarm using GSM Module We have built a simple arduino anti theft alarm, why not build an advanced version of the same burglar detector? What if we can build a burglar alarm that texts you an sms when an intruder is detected ? cool idea – … Read more
INVISIBLE BROKEN WIRE DETECTOR Invisible broken wire detector is the best device which will help to reduce the replacement of core/cables as finding the exact location of a broken wire. Due to prolonged usage of wire the power cord wire are subjected to mechanical strain or stress, which can lead to internal snapping or short … Read more
KOJAK SIREN KOJAK SIREN is the circuit that produces a sound similar to police vehicle , Ambulance vehicle , and Emergency vehicle. This circuit is built with two 555 timer ICs and has two linear potentiometers that allow the control of sound speed and tone. This circuit is designed to operate under all conditions, due the problem … Read more
RELIABLE EMERGENCY LIGHTING The reliable emergency lighting circuit is an electronics project designed to give an emergency light when the power from main power supply fail or there is an electric cutoff This is done by a backup battery source which is charged by a main power supply, when the power fail the battery will discharge … Read more
THE SMOKE DETECTOR WITH A RELAY SWITCH This circuit is used to respond to a smoke and drive a Relay which can be used to operate devices like emergence lights, door and alarms Also a relay can be connected to the main switch to provide automatic cut off the electricity in case the fire out … Read more
DOOR KNOCK VIBRATION ALARM SYSTEM. Doorbell alarm system is the device installed at the entrance door serves to alert the House owner on the presence of someone at the Door. When a person arrived at the entrance of the Building it will generate the input signal that will alert the Occupant inside the Building. Doorbell … Read more
USB SOUND CARD WITH PCM29O2 IC A sound card converts digital data to sound. This allows you to listen to music from your computer using speakers or headphones. Most of your music collection is probably in digital format, either on CDs or as files on your computer. In order to be able to listen to … Read more
Simple 40 Watt Audio Amplifier Circuit designed by using IC TDA2040 Simple 40 Watt Audio Amplifier Circuit designed by using IC TDA2040, It is a monolithic integrated circuit in the pentawatt package intended for use as an audio class AB amplifier. By applying 36V power supply and using 4Ω Loud speaker as load we can … Read more
DC motor controller Pwm dc motor controller is the circuit whose heart is astable oscillator ,that uses pwm technic to control the high ,medium and low speed of dc motor. High ,medium and low speed can be obtain by varying the potentiometer manually.by doing so the dc motor is supplied by different duty cycles. Also … Read more
Automatic sanitizer – automatic water tap An infrared (IR) sensor is an electronic device that measures and detects infrared radiation in its surrounding environment. Infrared radiation was accidentally discovered by an astronomer named William Herchel in 1800. While measuring the temperature of each color of light (separated by a prism), he noticed that the temperature just … Read more