Monitoring Your Internet Speed with Raspberry Pi?

In today’s digital age, a stable and fast internet connection is essential for both personal and professional use. Slow internet speeds can be frustrating and hinder productivity. To ensure that you’re getting the internet speeds you’re paying for, monitoring your connection is crucial. One cost-effective and efficient way to do this is by using a Raspberry Pi as an internet speed monitor.

Monitoring Your Internet Speed with Raspberry Pi?

This guide will walk you through the process of setting up a Raspberry Pi to monitor your internet speed, analyze the data collected, and help you optimize your network for better performance.

Raspberry Pi Internet Speed Monitor

A Raspberry Pi is a small, single-board computer that can be used for various projects, including monitoring internet speeds. By setting up a Raspberry Pi to regularly test and record your internet speed, you can create a log of data that helps you identify patterns, issues, and potential solutions.

Benefits of Using a Raspberry Pi for Internet Speed Monitoring

  1. Cost-effective: Raspberry Pis are affordable compared to other computing devices.
  2. Low power consumption: Raspberry Pis consume very little power, making them ideal for long-term monitoring projects.
  3. Customizable: With a Raspberry Pi, you have the flexibility to customize your monitoring setup to suit your specific needs.
  4. Easy to set up: Raspberry Pis are user-friendly and can be set up quickly, even for those with limited technical knowledge.

Hardware Requirements

To set up your Raspberry Pi Internet Speed Monitor, you will need the following hardware components:

  • Raspberry Pi board (any model)
  • MicroSD card (at least 8GB)
  • Power supply
  • Ethernet cable
  • (Optional) WiFi dongle (if not using Ethernet)
  • (Optional) Case to protect your Raspberry Pi

Software Setup

Step 1: Install Raspberry Pi OS

  1. Download the latest version of Raspberry Pi OS from the official website.
  2. Write the OS image to your microSD card using a tool like Etcher.
  3. Insert the microSD card into your Raspberry Pi.

Step 2: Configure Your Raspberry Pi

  1. Connect your Raspberry Pi to a display, keyboard, and mouse.
  2. Power on the device and follow the initial setup wizard.
  3. Update the system packages:


sudo apt update

sudo apt upgrade

Step 3: Install Speedtest-cli

Speedtest-cli is a command-line interface for testing internet speeds. Install it by running the following command:


sudo apt install speedtest-cli

Step 4: Create a Python Script for Monitoring

  1. Open a new file named with a text editor:



  1. Copy and paste the following code into the file:


import speedtest

import csv

import datetime

def test_speed():

    speed = speedtest. Speedtest()

    download_speed = / 1000000  # Convert to Mbps

    upload_speed = speed.upload() / 1000000  # Convert to Mbps

    return download_speed, upload_speed

def log_speed(download_speed, upload_speed):

    timestamp =“%Y-%m-%d %H:%M:%S”)

    with open(“internet_speeds.csv”, “a”) as file:

        writer = csv.writer(file)

        writer.writerow([timestamp, download speed, upload speed])

if __name__ == “__main__”:

    download_speed, upload speed = test speed()

    log_speed(download_speed, upload_speed)

  1. Save the file and exit the text editor.

Step 5: Schedule the Script to Run Automatically

To automate the speed testing process, use cron to schedule the Python script to run at regular intervals.

  1. Open the crontab file:


crontab -e

  1. Add the following line to run the script every hour:

0 * * * * python /path/to/

  1. Save the file and exit the editor.

Data Analysis

Once your Raspberry Pi Internet Speed Monitor is set up and collecting data, you can analyze the information to gain insights into your internet connection’s performance.

Viewing the Raw Data

The internet speed data is stored in a CSV file named internet_speeds.csv. You can view the raw data by running the following command:


cat internet_speeds.csv

This will display the contents of the file, showing the timestamp, download speed, and upload speed for each test.

Visualizing the Data

To better understand trends and patterns in your internet speed data, you can create visualizations using tools like Excel, Google Sheets, or Python libraries such as Matplotlib or Plotly.

  1. Import the CSV data into your chosen tool.
  2. Create a line graph with the timestamp on the x-axis and the download and upload speeds on the y-axis.
  3. Look for patterns, such as consistent slow speeds at certain times of the day or sudden drops in performance.

Optimizing Your Network

Using the insights gained from your Raspberry Pi Internet Speed Monitor, you can take steps to optimize your network for better performance.

Identifying Issues

  1. Look for patterns in slow speeds, such as specific times of day or days of the week.
  2. Check if slow speeds coincide with high network usage by other devices or users.
  3. Investigate any sudden drops in performance, as they may indicate hardware or service provider issues.


  1. Restart your modem and router to clear any temporary issues.
  2. Check for firmware updates for your network devices and install them if available.
  3. Ensure your Raspberry Pi is connected to your router via Ethernet or a strong WiFi signal.
  4. Contact your internet service provider if slow speeds persist, as there may be issues with your connection or service plan.

Optimizing Your Network Configuration

  1. Place your router in a central location to ensure even coverage throughout your home or office.
  2. Use a wired Ethernet connection for devices that require high-speed, stable connections.
  3. Configure Quality of Service (QoS) settings on your router to prioritize important traffic, such as video calls or gaming.
  4. Consider upgrading your router or modem if they are outdated or no longer meet your needs.


Setting up a Raspberry Pi Internet Speed Monitor is a cost-effective and efficient way to keep track of your internet connection’s performance. By regularly monitoring your speeds, analyzing the data, and taking steps to optimize your network, you can ensure that you’re getting the most out of your internet service.

Remember to view the raw data, visualize trends, and use the insights gained to identify issues and make informed decisions about your network configuration. With a Raspberry Pi Internet Speed Monitor, you’ll have the tools and knowledge necessary to maintain a fast, stable internet connection.

Key Takeaways

  • A Raspberry Pi Internet Speed Monitor is a cost-effective, customizable solution for monitoring your internet speeds.
  • Setting up the monitor involves installing Raspberry Pi OS, configuring the device, installing speedtest-cli, creating a Python script, and scheduling it to run automatically.
  • Analyzing the data collected by the monitor can help you identify patterns, issues, and potential solutions for optimizing your network performance.
  • Optimizing your network involves identifying issues, troubleshooting, and making changes to your configuration, such as placing your router centrally, using wired connections, and configuring QoS settings.

Frequently Asked Questions 

Q. Can I use any Raspberry Pi model for an internet speed monitor?
A. Yes, any Raspberry Pi model can be used for this project, as long as it has an Ethernet port or WiFi capabilities.

Q. How often should I schedule the speed test script to run?
A. The frequency of speed tests depends on your needs. Running the script every hour is a good starting point, but you can adjust the schedule based on your preferences.

Q. Can I monitor internet speeds for multiple devices using a single Raspberry Pi?
A. Yes, a single Raspberry Pi can monitor the internet speeds for your entire network, as it tests the connection between your network and the internet service provider.

Q. What should I do if I notice consistent slow speeds at certain times of the day?
A. If you notice slow speeds at specific times, it may indicate high network usage during those periods. Consider prioritizing important traffic using QoS settings or upgrading your internet plan if necessary.

Q. How long can I store internet speed data on my Raspberry Pi?
A. The amount of data you can store depends on the size of your microSD card. A 16GB card can store several years’ worth of speed test data.

Q. Can I access the internet speed data remotely?
A. Yes, you can set up remote access to your Raspberry Pi using tools like SSH or VNC, allowing you to view and analyze the data from another device.

Q. Will running the speed test script affect my internet performance?
A. Running the speed test script will consume some bandwidth during the test, but it should not significantly impact your overall internet performance, especially if tests are run hourly.

Q. Can I use this setup to monitor internet speeds for a business network?
A. Yes, a Raspberry Pi Internet Speed Monitor can be used to monitor speeds for a business network. However, for larger networks, you may want to consider more advanced monitoring tools.

Q. What if I don’t have an Ethernet connection available for my Raspberry Pi?
A. If an Ethernet connection is not available, you can use a WiFi dongle to connect your Raspberry Pi to your network wirelessly.

Q. Can I set up alerts to notify me of slow speeds or connection issues?
A. Yes, you can modify the Python script to send email or SMS alerts when speeds fall below a certain threshold or if the connection fails.

Q. What is the difference between download speed and upload speed?
A. Download speed refers to the rate at which data is transferred from the internet to your device, while upload speed is the rate at which data is transferred from your device to the internet.

Q. Can I use the internet speed data for troubleshooting with my internet service provider?
A. Yes, having a log of internet speed data can be helpful when troubleshooting issues with your internet service provider, as it provides evidence of any consistent slow speeds or connection problems.

Q. Can I monitor internet speeds for a wireless network using a Raspberry Pi?
A. Yes, you can monitor internet speeds for a wireless network by connecting your Raspberry Pi to the network using a WiFi dongle or the built-in WiFi on newer Raspberry Pi models.

Q. What should I do if I notice a sudden drop in internet speed?
A. If you notice a sudden drop in internet speed, first try restarting your modem and router. If the issue persists, contact your internet service provider for further assistance.

Q. Can I share my internet speed data with others?
A. Yes, you can share your internet speed data by exporting the CSV file and sending it to others or by setting up a web-based dashboard to display the data.

Q. How can I backup my internet speed data?
A. To backup your internet speed data, you can periodically copy the
internet_speeds.csv file to an external storage device or cloud storage service.

Q. Can I use this setup to monitor internet speeds in multiple locations?
A. Yes, you can set up multiple Raspberry Pi Internet Speed Monitors in different locations and compare the data to assess internet performance across various sites.


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