Raspberry Pi Lesson 12 From the Adafruit Learning System: Sensing Movement #piday #raspberrypi @Raspberry_Pi
In this lesson, you will learn how to use the digital inputs on the GPIO connector with a door sensor and a PIR motion detector.
In this lesson, we will concentrate on sensing movement and activation of the door switch. In Lesson 13 we will build on this security sensing to have the Pi use a digital output to control the power to an electrical appliance when movement is detected.
PIR (motion) sensor – PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 0.3-18 seconds), adjustable sensitivity and we include a 1 foot (30 cm) cable with a socket so you can easily reposition the sensor or mount it using the two drills on either side. (read more)
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Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new “Adafruit Raspberry Pi Educational Linux Distro”? It’s our tweaked distribution for teaching electronics using the Raspberry Pi. But wait, there’s more! Try our new Raspberry Pi WebIDE! The easiest way to learn programming on a Raspberry Pi.