Design Your Own Jarvis in 10 Lines of Code

Vikas Kulhari
4 min readMar 2, 2023

Do you remember J.A.R.V.I.S., Tony Stark’s computer-generated and AI-Powered personal assistant? I’m confident you do if you’ve seen any Ironman or Avengers movies.

Have you ever wondered if it would be possible to design your own personal assistant? Yes, That’s where Tony Stark can assist us out!

Oh no, did you forget that he has passed away? He can no longer save us, which is tragic. But hey, Python, your preferred programming language can assist you out there.

Creating your own Jarvis, or virtual assistant, may sound like a complex and daunting task, but with the right tools and a few lines of code, it can actually be quite simple. In fact, you can create a basic version of Jarvis using just 10 lines of code. Here’s how:

  1. Import the necessary libraries: To get started, you’ll need to import the libraries required to build your virtual assistant. These may include libraries for speech recognition, text-to-speech conversion, and more.
  2. Set up the speech recognition module: With the speech recognition module, you can enable your Jarvis to listen for your commands. Set up the module to listen for a keyword, such as “Jarvis.”
  3. Create a function for text-to-speech conversion: Once Jarvis recognizes the keyword, you’ll want it to respond verbally. Create a function that converts text to speech using a text-to-speech conversion library.
  4. Set up a while loop: To ensure your Jarvis continues to listen for commands, set up a while loop that keeps the program running until you manually shut it down.
  5. Define functions for specific commands: Depending on what you want Jarvis to do, you’ll need to define specific functions for different commands. For example, you might create a function for sending an email, playing music, or getting the weather forecast.
  6. Incorporate a natural language processing library: To make your Jarvis even more sophisticated, you can incorporate a natural language processing library that allows it to understand more complex commands and respond accordingly.
  7. Set up a “help” command: To help you remember what commands Jarvis can perform, set up a “help” command that will list all available functions.
  8. Create a wake-up sound: For a more immersive experience, you can add a wake-up sound that lets you know when Jarvis is listening.
  9. Set up error handling: To prevent your program from crashing if something goes wrong, set up error handling that can catch and handle any errors that occur.
  10. Test and refine: Once you’ve set up your basic Jarvis, test it out and refine it as needed. You may want to add additional functions or improve its accuracy in recognizing commands.

With just these 10 lines of code, you can create a basic virtual assistant that listens for your commands and performs a variety of tasks. Of course, the more time and effort you put into refining your Jarvis, the more sophisticated and useful it will become. But even with just these simple steps, you can experience the thrill of having your own virtual assistant at your beck and call.

Creating a fully functional Jarvis in Python requires more than just 10 lines of code, but here’s a basic program to get you started. This program will allow your Jarvis to listen for a wake-up keyword, respond verbally, and perform a few simple tasks such as opening a website and telling the time.

To use this program, save it as a Python file (e.g. jarvis.py) and run it. Speak the wake-up keyword ("Jarvis" by default) to activate the program, and then speak a command such as "open website example.com" or "what time is it?" Jarvis should respond verbally and perform the requested task. Note that this program is a very basic implementation of a virtual assistant and can be expanded upon with more functions and features.

pythonCopy code
import speech_recognition as sr
import pyttsx3
import webbrowser
import datetime
# Set up speech recognition
r = sr.Recognizer()
with sr.Microphone() as source:
print("Listening...")
r.pause_threshold = 1
audio = r.listen(source)
# Initialize text-to-speech engine
engine = pyttsx3.init()
# Set up wake-up keyword
wake_word = "Jarvis"
# Define function to convert text to speech
def speak(text):
engine.say(text)
engine.runAndWait()
# Define function for opening a website
def open_website(url):
webbrowser.open(url)
speak("Opening website.")
# Define function for telling the time
def tell_time():
time = datetime.datetime.now().strftime("%I:%M %p")
speak(f"The time is {time}.")
# Check if wake-up keyword is detected
if wake_word in r.recognize_google(audio):
speak("Yes sir?")

# Listen for command
with sr.Microphone() as source:
r.adjust_for_ambient_noise(source)
audio = r.listen(source)

try:
# Convert speech to text
command = r.recognize_google(audio)
print("You said: " + command)

# Execute command
if "open" in command:
if "website" in command:
url = command.split()[-1]
open_website(url)
else:
speak("I'm not sure what you want me to open.")
elif "time" in command:
tell_time()
else:
speak("I'm sorry, I didn't understand that.")

except sr.UnknownValueError:
speak("I'm sorry, I didn't understand that.")
except sr.RequestError as e:
speak("Sorry, I couldn't reach the Google servers. Check your internet connection.")

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Vikas Kulhari

Crafting Tomorrow: I help companies create intelligent machines | AI Maestro | AI & Intelligent Automation Consultant. LinkedIn @vikaskulhari