The block diagram of the motion sensor alarm is shown in Fig. 2. Fig. 1: Author’s prototype Fig. 2: Block diagram of motion sensor alarm Circuit and working. The circuit diagram of the motion sensor ...

This motion detector alarm can detect a moving person from a distance of 1 meter. It uses a dual IR Transmitter-Receiver module HOA1405. When the sensor detects the reflected IR rays, alarm will sound ...

This circuit produces an alarm whenever someone comes near the spotting range of its passive infrared (PIR) motion sensor. It can be used as a security system to guard your home and other property, if ...

The motion detector is not only used as intruder alarm but also used in many applications like home automation system, energy efficiency system, etc. The motion detector will detect the motion of the ...

Motion detection is an essential part of security systems and PIR sensor is one of the most commonly used sensor for trigging the alarms when motion is detected. This sensor can detect human/animal ...

It can detect the motion of an intruder with help of a PIR Sensor.The main objective is that it focuses on detection of motion without any external touch. The passive infrared sensor detects the IR ...

This contacts (or spare contacts) can also be used to activate a high-power warning alarm. Please note that, here T1 is wired as a mini electronic timer. Even after the PIR relay switched off, output ...