The shock alarm module that we are presenting to you can be used in a house as well as in a car. Given its low manufacturing cost, it can be […]
Security and Alarm
Child Crying Monitor Circuit using Power Line Communication
In this child crying monitor circuit when the baby wakes up in their room, the parents are immediately notified, even if they are in another room of their home. A […]
Ultrasonic Burglar Alarm Circuit
An ultrasonic burglar alarm circuit is an electronic device which transmits ultrasonic waves to detect the movement of an intruding person. The ultrasonic waves hit the intruder and the reflected […]
Monitoring 220V AC Load Current using Current Transformer [Circuit Diagram]
In this post I have explained a circuit which can be used for monitoring or controlling AC 220V load current by sensing the load current through a contactless current transformer. […]
Simplest Combination Lock Circuit Explained
A electronic combination lock is a device which is designed to activate an electrical solenoid locking system whenever the correct combination of numbers are entered into an attached keypad. To […]
Password Lock Circuit Using IC 4017
In this post I will show how to construct a general purpose password based electronic lock circuit without any involvement of microcontroller. You can use this circuit for numerous applications […]
