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Setting Up a Hotspot with Raspberry Pi 4G LTE Hat on Raspberry Pi OS

Introduction​

This guide will walk you through the process of setting up a 4G LTE hotspot on your Raspberry Pi using the 4G LTE Hat. We'll cover the necessary hardware and software components, including the Raspberry Pi, the 4G LTE Hat, with Raspberry Pi OS (Bookworm). You'll learn how to configure the 4G module, establish a Wi-Fi network, and securely share your internet connection with other devices.

Prerequisites​

Hardware Requirements​

Raspberry Pi 5Raspberry Pi 4G LTE CAT4 HAT
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Software Requirements​

  • A Raspberry Pi with Bookworm OS installed is required.

  • A Quectel LTE 4G module configured for internet access. Ensure LTE connectivity is properly set up using RNIDS or similar configurations. Link

Steps to Enable the Hotspot​

Connect to the LTE Network​

Ensure your Quectel LTE module is connected and providing internet access. Confirm connectivity using:

ping -c 4 google.com

Create a Hotspot​

To broadcast a hotspot network using the built-in Wi-Fi module:

  • Open the terminal.
  • Run the following command, replacing hotspot name and hotspot password with your desired SSID and password:
 sudo nmcli device wifi hotspot ssid <hotspot name> password <hotspot password> ifname wlan0
  • ssid: Sets the name of your hotspot network.
  • password: Sets the password to access the hotspot.
  • ifname wlan0: Specifies the Wi-Fi interface to use.

Manage the Hotspot​

Disable the Hotspot​

To stop the hotspot and restore the Wi-Fi interface to client mode:

sudo nmcli device disconnect wlan0

Reconnect to Another Wi-Fi Network​

To connect to a different Wi-Fi network after disabling the hotspot:

sudo nmcli device up wlan0

Additional Notes​

  • You can now use your Raspberry Pi as a portable router or Wi-Fi access point.
  • Ensure your Raspberry Pi's power source is stable when broadcasting a hotspot for long durations.
  • You can refer this document for futher

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