Motion Detector with PIR Sensor


Posted on Feb 4, 2014

this project use PIC18F25K20 microcontroller to detect if the sensor change state and it will emit a sound from the speaker or piezo, the MCU also detect the voltage of the battery in the startup, the algorithm it s very simple use an interrupt on change to detect the change on the PIR sensor. Power On - when circuit start, a delay come to MCU ge


Motion Detector with PIR Sensor
Click here to download the full size of the above Circuit.

nerate a unknowed state, to avoid circuit malfunction, R6 and C1 make a RC delay filter, calculate delay with:




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    LED Matrix board circuit
    Electronic Siren with 2 transistors
    Synchronous System
    Light turning bike using IC LM3909
    led display digital voltmeter
    commodore 64c
    relay tutorial
    Pulse Width Modulation
    Technical Proposal for Subcutaneous Transmitter
    Outdoor surveillance with condenser microphones



    Top