SmartHome_MotionSensor_RPi

This project combines a Raspberry Pi with a motion sensor to control a smart home device with IFTTT

Materials:

• Raspberry Pi Zero with Headers - https://amzn.to/2NncxP4
  • or Raspberry Pi 3B, 3B+ (3A, or 4) - https://amzn.to/2O9SxiO
• MicroSD card - https://amzn.to/2Nq5AN9
• Motion Sensor - https://amzn.to/32OPMaA
• TP-Link Smart Plug - https://amzn.to/30dpAty
• Peripherals: Mouse, Keyboard, & Monitor

Assumptions:

• Working knowledge of how to setup a fresh Raspberry Pi with the Raspbian operating system.
• Understanding how the Raspberry Pi GPIO works
• How to boot up a Raspberry Pi.
• Previously setup a smart plug that is currently active and connected to your home or office Wifi network.

Step 1: Setup Raspbian OS

Download and install Raspbian OS - See my previous video on a basic Raspbian OS download and setup: https://youtu.be/2Jfv9NO6J2Q

Step 2: Hardware Assembly

• Insert your MicroSD card with Raspbian into your Raspberry Pi.
• Connect your motion sensor to your Raspberry Pi. If you are using a Raspberry Pi Zero, you may need to solder header pins.
  • Connect the Ground pin of your motion sensor to GPIO pin 6 of your Raspberry Pi
  • Connect the OUT pin of your motion sensor to GPIO pin 11 of your Raspberry Pi
  • Connect the VCC pin of your motion sensor to GPIO pin 2 of your Raspberry Pi
• Attach a mouse, keyboard, and monitor to your Raspberry Pi.
• Power on your Pi.

Step 3: Setup IFTTT

In this step, you'll setup your IFTTT Webhook

• Go to: https://ifttt.com/ If you don't already have an account with IFTTT, create one. It is free and does not require a credit card.
• Login to IFTTT
• Click the "Get More" button in the top right
• Click the '+' button to the right of "Make Your Own Applets from scratch."
• Click "This"
• Search for "webhook" and click the "Webhook icon"
• Click "Receive a web request"
• Enter "motion_detected" and click the "Create trigger" button
• Click "That"
• Search for your smart plug vendor or smart plug app and click the appropriate icon.
• Connect your smart plug with IFTTT. Enter your login and password for your smart home plug and authorize the connection with IFTTT.
• Click on your desired action.
• Configure (if necessary) and click "Create Action"
• Click the IFTTT logo in the top left and search for "webhook" in sthe "Search Filters" field.
• Click Webhook
• Click "Documentation" and leave that web browser session open for the next step.

Step 4: Software Installation

Open a Terminal and run the following commands

sudo apt-get update
sudo apt-get upgrade
mkdir ifttt
cd ifttt
wget https://awsiotbutton.s3.amazonaws.com/iftttpir.py
sudo nano iftttpir.py

• Go back to your IFTTT webpage and copy the key
• Paste IFTTT key into line 46. For example, r = requests.post('https://maker.ifttt.com/trigger/motion_detected/with/key/KXXXXXXXXXXXXXXA6pE', params={"value1":"none","value2":"none","value3":"none"})
• Ctrl-X
• Y to save

Now let's try running the code! sudo python3 iftttpir.py

Now move your hand in front of your motion sensor and see if it works. If it doesn't work, retrace your steps.

Step 5: Run on Boot

This step is optional if you'd like for this python script to run at boot.

• Open a Terminal

• Enter sudo nano /home/pi/.bashrc

• Arrow down to the bottom of the file.

• Enter the following at the bottom of the .bashrc

sudo python3 /home/pi/ifttt/iftttpir.py

• Ctrl-X to exit
• 'y' to Save
• Reboot your Raspberry Pi.