how to control gpio on raspberry pi with python
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the raspberry pi is a versatile single-board computer that allows for a wide range of projects. one of its key features is the general purpose input/output (gpio) pins, which allow you to interact with the physical world by controlling and reading digital signals. this tutorial will guide you through the process of controlling gpio on a raspberry pi using python.
ensure that your raspberry pi is properly set up and running the latest raspbian os. connect the raspberry pi to the internet, either via wi-fi or ethernet.
raspberry pi comes with the rpi.gpio library that simplifies working with gpio pins. however, it's good practice to ensure you have the latest version installed. open a terminal and run the following commands:
create a new python script using your favorite text editor or the built-in nano editor. for example, create a file named gpio_example.py:
add the following python code to the file:
this script turns on an led connected to gpio pin 17, waits for 2 seconds, and then turns it off. adjust the led_pin variable to match the gpio pin you're using.
save the file (ctrl + x, y, enter).
execute the python script with the following command:
you should see the led turn on for 2 seconds and then turn off. press ctrl+c to exit the script.
congratulations! you have successfully controlled gpio on a raspberry pi using python. this basic example can be extended for more complex projects involving sensors, motors, or other electronic components. explore the rpi.gpio documentation for more advanced features and options.
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