infrared radar ir system

This document discusses a do-it-yourself alarm system utilizing the PIC18F452 microcontroller. It is a highly engaging project, although the schematic is quite complex. The project employs three main components to create the personal alarm system. The infrared (IR) proximity sensor provides output, which is then processed by the PIC microcontroller. The results are displayed on an LED array. The objective of this project is to develop a real-time IR alarm system. The system is designed to measure proximity at a 90-degree angle, as illustrated in the example provided. The range of the system is approximately 4-30 cm, 20-150 cm, and 1-5.5 m, depending on the sensor selected. An example of how a short-range personal alarm could be utilized is also included.

The PIC18F452 microcontroller serves as the core processing unit in the alarm system, managing the input from the IR proximity sensors and controlling the output displayed on the LED array. The IR sensor detects objects within its specified range and sends a signal to the microcontroller when an object enters its field of view. This signal is then processed by the microcontroller, which executes the programmed logic to determine whether to activate the alarm.

The system can be configured to use different IR sensors, allowing for flexibility in the detection range based on the specific application requirements. For instance, a short-range sensor may be suitable for indoor use, while a longer-range sensor could be employed for outdoor applications. The choice of sensor will directly influence the operational range of the alarm system, which can vary from 4 cm to 5.5 m depending on the selected component.

The LED array serves as a visual indicator of the system’s status. When an object is detected within the specified range, the microcontroller activates the LEDs to signal an alert. This feature enhances the usability of the alarm system, providing immediate feedback to the user.

In summary, this do-it-yourself alarm system project offers a comprehensive solution for creating a personal security system using the PIC18F452 microcontroller and IR proximity sensors. The flexibility in sensor selection and the effective use of visual indicators make it a practical choice for various applications.About a do-it-yourself alarm arrangement body with PIC18F452. It`s a abundant amusement activity although the schematic is actual complicated. This activity uses three capital accessories to actualize the claimed alarm system. The IR Ambit sensor gives output, the pic microcontroller processes it and again displays the achievement on the led array. The ambition of this activity is to actualize a alive ir alarm system. The arrangement will alone be appropriate to admeasurement abutting adjacency at an bend of 90 degrees as apparent in the archetype above. The ambit of arrangement is almost 4-30cm, 20-150cm & 1m-5. 5m depending aloft which sensor you accept to use. Below is an archetype of what abbreviate ambit claimed alarm could be acclimated for. 🔗 External reference