CAR ANTI-THEFT GUARD

Here is an easy-to-build car anti-theft guard. The circuit, shown in Fig. 1, is simple and easy to understand. When key-operated switch S2 of the car is turned on, 12V DC...

GLOW PLUG CONTROLLER

In diesel engines, the air in the cylinders is not hot enough to ignite the fuel under cold conditions. Therefore each cylinder of these engines is fitted with an electric heater...

Cordless Multi-Door Alarm

Thwart the attempt of burglary by detecting intrusion with this alarm circuit. Each door is protected by a separate circuit built around an independent 555 timer IC in conjunction with reed...

MOBILE BUG

This handy, pocket-size mobile transmission detector (Mobile Bug) can sense the presence of an activated mobile phone from a distance of one and a-half metres. So it can be used to...

Line-Powered Two-Tone Ringer

Need often arises for having an extra telephone ringer in another room to alert you of an incoming call. A low-cost, 2-tone ringer IC LS1240, which is commonly used as part...

LAPTOP PROTECTOR

Protect your valuable laptop against theft using this miniature alarm generator. Fixed inside the laptop case, it will sound a loud alarm when someone tries to take the laptop. This highly...

Motorbike Alarm

This simple-to-build alarm can be fitted in bikes to protect them from being stolen. The tiny circuit can be hidden anywhere, without any complicated wiring. Virtually, it suits all bikes as...

INFRARED FIRE CRACKER IGNITER

Firecrackers are normally ignited by using a matchstick or a candle. You have to run away quickly after igniting the fuse of the firecracker. This method of igniting firecracker is unsafe,...

“Modeling and simulation help to design a perfect combination of automotive subsystems”

At MathWorks’ second annual India user conference in Bengaluru, customers and technical experts discussed the capabilities of MATLAB and Simulink for design, modeling and simulation. Jalaja Ramanunni of Electronics For You had...

“The primary challenge in implementing NFC in India is interoperability”

FIME is a consulting and market integration services provider for secure chip based applications, tokens and devices within the telecom, e-payment, transport, e-identity and logistics sectors. Prakash Sambandam, managing director of FIME...