Motion Detection LED Lamp



I am using PIC12F683 Micro-controller Unit (MCU) and Passive InfraRed Sensor (PIR Sensor) as a major components in this project.
PIR sense the movement of a warm body. It analyzed the pattern off environment  to determined if there is changes in temperature. It detection angle 140 and 5m detection area.
When PIR detect motion, output pin will be high. This put a current into input on GPIO2 at a moment. MCU will detect the signal and set the sensor S0 variable to=1. If S0=1 , S1++. So if S1=1 L1 is on. Second time motion will put the lamp into bright mode where L1 L2 L3 L4 all light on. After 3 Motion the S0 reset to 0 and all the led set off.
The PIR detection angle has been narrow using piece of paper with small hole opening there.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Microcontroller Contest

Participated in the
Microcontroller Contest



    • Indoor Lighting Contest

      Indoor Lighting Contest
    • Make It Fly Challenge

      Make It Fly Challenge
    • Growing Beyond Earth Maker Contest

      Growing Beyond Earth Maker Contest