by Tarun Agarwal 10 years ago Microcontroller based LPG Leakage Detector Circuit and Working Nowadays, security is the major problem in many fields due to robberies, fire accidents and blasts due to LPG gas leakage. At present, LPG gas can be used in the car, in the storage tank or service station. But, due to some reasons the...
by Tarun Agarwal 10 years ago 555 Timer based Smoke Detector Circuit Diagram and Its Working Smoke detectors are one of the most amazing inventions due to mass production and less cost practically. Every year these detectors save thousands of lives due to this, it is recommended for every home. These devices mainly include two...
by Tarun Agarwal 10 years ago Hidden Active Cell Phone Detector Circuit and Its Working The rapid growth of cell phones in the 21st century to now has raised many problems. In addition, public reaction was growing against the disturbance of cell phones introduced in daily life. Here is a simple engineering project, namely...
by Tarun Agarwal 10 years ago Biometric Sensors – Types and Its Working The word biometrics is derived from the Greek words bio and metric. Where bio means life and metric means to measure. Biometrics are used to identify his or her physical and behavioural characteristics of a person. This method of identification...
by Tarun Agarwal 10 years ago Automatic Wireless Health Monitoring System for Patients Circuit and Working Generally, it is very hard to find the abnormalities in the heartbeat count of a patient. The average count of 25 years old ranges from 140 to 170 beats/minute, whereas in 60 years old people, it ranges from 115 to 140 beats /minute. Patients...
by Tarun Agarwal 10 years ago Underground Cable Fault Distance Locator : Circuit and Its Working Till the last decades, a million miles of cables are threaded in the air across the country. But currently, it is laid in the underground, which is larger than an earlier method. Because, underground cables are not affected by any adverse...
by Tarun Agarwal 10 years ago Movement Sensed Automatic Door Opening System Circuit and Working The automatic door opening systems are used in commercial buildings, shopping malls, theatres, etc. These systems are used to open the door when a person comes near to the entrance of the door and closes it after he moves away from the...
by Tarun Agarwal 10 years ago Know all About a Capacitor – Working of a Capacitor Just like the various electrical and electronic components such as resistor, transistor, ICs, the capacitor is one of the most used components in electrical and electronic circuit design. Sometimes capacitor is referred as a condenser....
by Tarun Agarwal 10 years ago Wireless Home Automation using IOT The process of controlling or operating various equipment, machinery, industrial processes, and other applications using various control systems and also with less or no human intervention is termed as automation. There are various types...
by Tarun Agarwal 10 years ago Latest Simple LDR Projects for Engineering Students The term LDR is known by many names such as a light-dependent resistor, photoresistor, photoconductor, the photocell. The term photocell is most widely used in datasheets as well as instruction sheets for domestic gear. The light-dependent...
