Security System

Smart Wi-Fi Video Doorbell using ESP32 and Camera Smart Wi-Fi Video Doorbell using ESP32 and Camera

Nowadays, Security system is one of the most researched fields and with increasing security threats, companies are launching…

Toshiba's TLP223GA and TLP223J Photorelays New Photorelays with Low Input Power and High Operating Temperature suitable for Smart Meters and Security Systems

Toshiba Electronic Devices & Storage Corporation has launched two photorelays “TLP223GA” and “TLP223J,” with an OFF-state…

Raspberry Pi CCTV Monitoring System CCTV Motion Detection with Alarm using OpenCV on Raspberry Pi

OpenCV is a powerful tool and that combined with Raspberry Pi can open doors to many portable smart devices. In our previous…

Wailing Siren Circuit using a 555 Timer IC Building a Wailing Siren Circuit using a 555 Timer IC

If you are an electronics hobbyist then you must have heard about the 555 timer IC and its 3 popular circuits viz. astable…

Biometric Access Control Biometric Access Control: Where We Are Today and What to Expect in the Future

Many buildings still use keys, keypads, and access cards to enforce access control. These legacy methods rely on a password or…

ESP32-CAM Face Recognition Door Lock System ESP32-CAM Face Recognition Door Lock System

Security is at most concern for anyone nowadays, whether it's data security or security of their own home. With the advancement…

Hikvision Raspberry Pi CCTV Viewer using OpenCV Stream CCTV Video from DVR to Raspberry Pi using Python and OpenCV

Most of the workplace and commercial buildings today have a CCTV surveillance system installed to monitored the activities. But…

Women Safety Device Using Arduino with GPS Tracking & Alerts Women Safety Device with GPS Tracking and Alerts Using Arduino

With all the technology available to us in recent times, it's not hard to build a safety device for women which will not only…

Password based Digital Keypad Security Door Lock using Arduino Digital Keypad Security Door Lock using Arduino

Often times, we need to secure a room at our home or office (perhaps a secret dexter’s laboratory) so that no one can access…

Arduino Solenoid Door Lock using RFID Arduino Solenoid Door Lock using RFID

RFID (Radio Frequency Identification) is an inexpensive and accessible technology. It can be used in many applications such as…