This project is for small Electronic Eye Circuit using IC 4049, which can sense darkness or shadow. When light falls on the LDR, the circuit remains OFF and when an object blocks the light, the LED and buzzer turns ON; moreover, this circuit also works like a magic eye and is useful for security systems […]
Security and Protection
IR Burglar Alarm Circuit
Want to protect our home or room from intruders? then this simple IR Burglar Alarm Circuit is our smart security buddy! It uses invisible IR light to sense any movement or break in the beam; the moment someone crosses the path, a loud buzzer alerts us instantly. Moreover, its easy to build, with low cost […]
Tilt Switch Interfacing Circuit with Arduino Uno
The tilt sensor acts like a small switch and changes its state when we tilt or move it; it also detects direction, movement and vibration. Here we used Arduino Uno with tilt sensor, buzzer and one LED and when sensor tilt, Arduino see it and then Arduino make buzzer ON and LED ON. Arduino Code: […]
Hall Effect Sensor Circuit with IC LM393
In this post, the Hall Effect Sensor Circuit with IC LM393 detects a magnetic field and gives an output when a magnet comes near the sensor. The module uses an LM393 comparator to provide a digital output, it also supports motor speed detection, position detection and security system applications. Circuit Working: Parts List: Components Values […]
PIR Motion Detector Circuit using Arduino
Turn Arduino into a motion spy! with just a PIR sensor, buzzer and LED we can detect movement easily. Whenever someone passes, it spots movement and warns us with light and sound; this PIR Motion Detector Circuit using Arduino is for beginners and makers. Also, it is fast to build, fun to use and full […]
Women Safety Alarm Circuit using GPS GSM NodeMCU
This article is for Women Safety Alarm Circuit using GPS GSM NodeMCU, it uses NodeMCU ESP8266 board as brain. Here, GPS module give location, GSM module send SMS to family and one push button used to send alert. Arduino Code: Coding Explanation: Circuit Working: Parts List: Components Quantity NodeMCU ESP8266 Board 1 GPS Module (NEO-6M) […]