=security system with anti theft alarm

The circuit comprises a trigger circuit, an alarm control circuit, and a reset circuit for the alarm. The trigger circuit includes mercury switches (S1), a resistor, transistors (V1), and a relay (K1). The alarm control circuit is made up...

This simple alarm timer circuit is constructed using a 4060 IC, which features an integrated oscillator known for its good stability and relatively wide frequency range. The 4060 integrated circuit (IC) serves as the core component of this alarm timer...

Building a DIY Alarm System: The Concept. An alarm system serves to protect property, whether it be a room, vehicle, or outdoor area. The primary function of the alarm system is to alert the designated administrator of any intrusion...

The car alarm is a straightforward circuit with fundamental features that monitor all entry points of the vehicle, such as doors, using switches. It operates with a single switch (the arm switch) that allows the circuit to remain inactive...

The Light Dependent Resistor (LDR) is a variable resistor whose resistance decreases as light intensity increases. Under normal light conditions, the resistance of the LDR is sufficiently high, resulting in an inadequate voltage across resistor R to activate the...

The working voltage of capacitors C1 and C2 should be increased to 25V if a 12V power source is used. A general guideline is that the operating voltage of capacitors should be at least double the supplied voltage; for...