Working this Arduino Door Alarm is very easy. Whenever anyone comes in the path/range of Ultrasonic Sensor, microcontroller detects the distance of object from the sensor and if the object is in the ...

He’s using an Arduino Uno and an Ethernet breakout board to hook it up to the network. This allows him to send text messages to himself when the alarm system is armed, disarmed, or triggered.

This compact shadow alarm unit is capable of sensing a moving shadow in a restricted area, and can be easily installed on a wall, window or door to protect your valuables from theft. Constant lighting ...

Arduino is able to interpret signals from a variety of sensors. By placing a unit equipped with an ADXL345, an accelerometer for detecting motion, or a Piezo sensor on a door, it can notify you ...

Affix the magnet on the door and the reed switch on the door frame such that when you close the door, the magnet comes closest possible to the reed switch. Use a 9V battery/adaptor to power the ...

I worked in a lab with a -20º C refrigerator that would often refuse to close. So, I cooked up a simple timing circuit that would fire a loud pulsing alarm whenever the door was open for more than 60 ...

an alarm is set off when ever the door is opened,this has been done with the help of opencv.videos have been added for explaination,simple circuit of motor driver,motor ,arduino has been used for ...

So, in this project, I have built an Arduino Keypad Door Lock which can be mounted to any of your existing doors to secure them with a digital password. Previously, we have also built other ...

There’s a huge market for 433 MHz alarm system hardware out there, from PIR motion detectors to door and window sensors. If you want to put them to work, all you need is a receiver, a network ...