Connecting & Testing the Motion Sensor

~~~~
Screen Shot 2017-09-22 at 8.16.02 PM.png
~~~~
Materials:
*Your RP (Raspberry Pi) & its charger
*A HDMI cable and a monitor, also a non-wireless keyboard and mouse
*A PIR Motion Sensor
*Three jumper cables (preferably different colors so they are easier to identify, we use red, yellow, and black)
  • Today we’re only going to connect &  test our motion sensor so the camera does not need to be connected
  • Start up your RP and connect the charger, the HDMI, and the mouse and keyboard USBs
  • Now take your motion sensor and look for three small metal spikes coming out of the side without the white half-globe on it
  • Related image
  • Now connect the cables as shown above and make sure to match the colors up correctly with the black on the left, the yellow in the middle and the red on the right
Image result for pir motion sensor raspberry pi
  • Now to connect them to the RP you are going to turn RP so that it is facing you just like in the picture above and count the metal spikes so that the red jumper is on the spike on the corner to the right, the black should be two spikes below the red one, and the yellow should be on the column to the left and down four spikes
  • Great! It’s connected!
  • Now to test it:
  • Go to your main menu and open the first option, Programming, and then the seventh option, Python 3 (IDLE)
  • Open a new program by going to File, then New File, or by pressing Ctrl+N
  • Now to test the motion sensor put in the code:
Screen Shot 2017-10-20 at 11.34.42 PM.png
Screen Shot 2017-10-20 at 11.35.41 PM.png
  • Now save it (File, Save as, or Ctrl+Shift+S), name it ‘motion-test.py’ and run it (Run, Run Module, or F5)
  • Wave your hand in front of your motion sensor and it should print out:
Motion detected
  • It may take a few seconds so be patient! And if it doesn’t work the first time try it a second time, that did the trick for me!
  • Notice how the program ends after having detected motion once? Well we want it to be continuously checking for motion so we are going to edit the code by adding in a while loop:
  • Before the line of ‘pir.wait_for_motion()’ put in the line:
while True:
  • Now save it and try running it again and the program should stay running even after it has detected motion once


Sources:



Comments

Post a Comment

Popular posts from this blog

Connecting & Enabling the Camera

Image
Don’t start up your Raspberry Pi yet!!!!!!!!!!!! ~~~~ ~~~~ Before you start up your RaspPi take the picamera and find the end of the ribbon attached to it which should have metal bands like this: ↖ Put those metal bands on the end of the ribbon of the camera into the slot on the RaspPi that is between the HDMI port and the composite video and audio output jack, it’s labeled on the diagram of the RaspPi as the CSI camera port which should look like the picture below (from 2 different angles) Don’t worry if it doesn’t go all the way in or if it doesn’t make a clicking noise, it’s not supposed to do that Now, start up your RaspPi Open the main menu by clicking on the RaspPi symbol in the upper left corner and then click on the seventh option ‘Preferences’ Go to the last option on the preferences menu ‘Raspberry Pi Configuration’ and this should come up:                 ...
Read more

Setting Up

Image
Materials: Raspberry Pi (RaspPi) Micro memory (SD) card and bigger (SD) memory card RaspPi charging cable HDMI connection cable for monitor Monitor, keyboard, mouse Computer Get to know your RaspPi: ~~~~ Take the micro & big memory card out of their plastic case and on the bottom of the big SD card there should be a slit into which the micro SD card fits perfectly Then on the side of your computer (on the macbook Pro it’s on the left side of the computer) there should be a slit for the SD cards so insert them into the computer Go to the website: https://www.raspberrypi.org/downloads/noobs/ Scroll down until you see two option NOOBS and NOOBS Lite, you want NOOBS so click download ZIP under the NOOBS (offline and network install) option, this will install the version with the Raspbian software on it Now you need to format your SD card so go to: https://www.sdcard.org/downloads/formatter_4/ Scroll to the bottom of the page until you...
Read more