The Metal Detector Circuit using the CS209A IC is a useful tool for detecting nearby metal objects. People use it for security screening, treasure hunting and industrial applications, also this article explains a simple yet effective metal detector circuit based on a single CS209A chip. The circuit is easy to build and provides reliable metal […]
Security and Protection
Simple Shock Sensor Alarm Circuit
In this Simple Shock Sensor Alarm Circuit we can feel vibration or shock, which then makes loud sound with piezo buzzer. Also, we can build this circuit easily and use it at home, in cars and in many other places, as it improves security, helps prevent theft, and detects movement. Furthermore, main parts of the […]
Super Sensitive Intruder Alarm Circuit
This article for Super Sensitive Intruder Alarm Circuit talks about very simple but strong intruder alarm circuit, also it is very sensitive. Furthermore, this circuit is useful for security and it can detect very small Interference. This circuit uses IC 741 op-amp and IC 555 timer to work and it also use LDR (light sensor) […]
Simple Charger Breakdown Alarm Circuit
In electronic system good charger circuit is very important, as it give power to things like battery. Also, this Simple Charger Breakdown Alarm Circuit check charger is working or not and if problem found then buzzer makes sound. So user know fast if charger fails and this stop battery from drain or damage, also it […]
Simple Short Circuit Detection and Alert System
Simple Short Circuit Detection and Alert System is very important in power system, as it stop damage when short circuit happen. Short happen when positive and negative wire get touch and this make big current flow and can break parts or burn wire. Furthermore, circuit uses 2 transistor, buzzer and LED to find and show […]
IC 555 Timer Based Vibration Alarm Circuit
To begin with, IC 555 Timer Based Vibration Alarm Circuit is any easy to make, as it senses vibration and gives sound and light alert. Security systems, factory machines and anti-theft devices use this circuit and also the main component, the 555 timer IC sends a steady signal when the sensor detects vibration. Circuit Working: […]