Book Image

Wearable-Tech Projects with the Raspberry Pi Zero

By : Jon Witts
Book Image

Wearable-Tech Projects with the Raspberry Pi Zero

By: Jon Witts

Overview of this book

With Wearable-Tech Projects with the Raspberry Pi Zero, you will begin with learning how to install the required software for your upcoming projects. You will also learn how to control electronic devices with the GPIOZero Python library. Next, you will be creating some stylish wearable-tech projects such as a motion-reactive LED cap and a Tweet-activated LED T-shirt. Toward the end of the book, you will be creating some useful health and fitness wearable-tech projects; these will help you monitor your heart rate, track your movements with GPS, and count your footsteps with your own pedometer. By the end of the book, you will have created a range of wearable-tech projects and learned enough about your Raspberry Pi Zero that you should be able to adapt these projects further or come up with your own creations!
Table of Contents (10 chapters)

Making our program run automatically

One of our last steps here is to make this Python program run automatically. First, we need to make the program we just wrote executable by typing sudo chmod +x ./gpsTracker.py. Now, will create our service definition file by typing this:

sudo nano /lib/systemd/system/gpsTracker.service

Now, type the definition into it:

[Unit]
Description=GPS Tracker Service
After=multi-user.target

[Service]
Type=idle
ExecStart=/home/pi/WearableTech/Chapter9/gpsTracker.py

[Install]
WantedBy=multi-user.target

Save and exit Nano by typing Ctrl + O, followed by Enter, and then Ctrl + X. Now reload the systemd daemon and activate our service by typing this:

sudo systemctl daemon-reload
sudo systemctl enable gpsTracker.service

As we have combined the function of our Shutdown button into this Python program, we can now also stop that service from running by typing this...