An IoT device management platform refers to a software solution designed in the IoT or Internet of Things ecosystem. Such platforms provide a centralized interface where administrators can remotely monitor, update, configure, and troubleshoot the IoT devices.

Modern IoT systems may be complex and usually comprise many physically dispersed endpoints. Vehicle fleet management, industrial automation, and smart cities are good examples of IoT systems. In complex systems, multiple devices are used. This involves coordinating data transmission through various communication protocols.

Accessing Raspberry Pi behind a firewall or a NAT router remotely

It’s possible to remotely Access Raspberry Pi behind Firewall or NAT router by following some general steps that are laid out below.

  1. Assign a local IP address (static) to the Raspberry Pi. This is mainly to avoid issues caused by a dynamic IP assignment.
  2. On the Raspberry Pi, enable SSH. This helps ensure a secure connection is established.
  3. Ensure port forwarding is configured on the router. This way, incoming requests are directed to ports like port 20 for SSH to the Raspberry Pi’s local address.
  4. Utilize a combination of the router’s IP address (the public one) and the port configured to connect the Raspberry Pi from outside the local network.

There are instances where forwarding is not feasible. This could be like when the router or ISP imposes limitations. In such a case, there are some alternatives such as:

  • Utilize a VPN: A reverse tunnel can be created effectively by establishing a VPN connection between the device in a local network and Raspberry Pi. The VPN connection endpoints may be sourced from free VPS cloud providers such as Oracle Cloud or Google Cloud.
  • Run Tor hidden service: In this case, a Tor hidden service must be created on the Raspberry Pi. This makes it accessible only through the Tor network.
  • Dynamic DNS Services: this involves mapping the public IP address to the customer domain name. Access to Raspberry Pi becomes easier this way.
  • Using remote management tools: third-party services should be utilized here. An example is RemoteIoT to amplify the process of connecting the Raspberry Pi remotely without modifying the router settings.

It’s important to note that the solutions above come with some trade-offs regarding implementation ease, potential security implications, and cost. It’s crucial, therefore, to pick an approach that is suited to very specific circumstances.

Connecting Raspberry Pi remotely

It’s possible to Remotely Connect Raspberry Pi. There are several options in such a case, which depend mainly on the specific circumstances and needs. There are several methods that can be used in such cases.

  • Enable SSH or Secure Shell

It’s important to make sure SSH is enabled on the Raspberry Pi. This can be enabled by accessing its terminal and running the sudo raspi config. Go to the “Interfacing options” menu and then enable SSH. When done, the SSH client, such as PuTTY or Terminal, may be used to establish a connection with the IP address. The IP address should now be replaced with the actual one.

  • Virtual network computing or VNC

This entails the installation of a server to Raspberry Pi like TightVNC or RealVNC. Always follow the instructions provided by the server software to get it right. The VNC server then needs to be configured to stats at boot. The alternative is to enable or manually.

Once done, the VNC client must be installed on the remote computer following the installation instructions. Once done, the VNC client should be launched on the remote computer, and the Raspberry Pi IP address should be entered to establish a connection.

  • Remote desktop protocols

In this case, remote desktop server software should be installed on the Raspberry Pi. Options include X11VNC or XRDP. The next thing is configuring the remote desktop server and ensuring it starts at boot. It can be enabled manually as well. The remote desktop client software must also be installed on the remote computer and then launched. When done, it must be configured to connect using the Raspberry Pi IP address.

The remote computer and the Raspberry Pi should be on the same network for all methods mentioned. The only exceptions are if the user is on VPN or has set up port forwarding. Having all the credentials, like passwords and usernames, is important to establish a connection.

Monitoring the Raspberry Pi CPU temperature

Several methods and tools may be used to monitor the CPU temperature of Raspberry Pi. The common approaches include the following:

  • Command line

First, open the Raspberry Pi terminal or establish an SSH connection. Once done, enter vcgencmd measure_temp command to display the CPU temperature, generally in Celsius. The command is used to directly retrieve temperature from the firmware.

  • System monitoring tools

Tools like glances or htop may be installed in the Raspberry Pi using the right installation command. The system-monitoring tool should then be launched in the terminal to provide information regarding various parameters. One of these is CPU temperature.

  • GUI or Graphical User Interface Tools

This entails installing GUI-based tools like htop or gnome on Raspberry Pi. Once launched, different system metrics, including CPU temperature, can be monitored.

  • Third-Party Software

There are different third-party options to consider. Ensure all installation instructions are followed to get the graphical representation needed.

  • Web-based tools

These include tools such as Webmin or netdata on the Raspberry Pi. This can be accessed through the browser or another device connected to the same network. Each tool has its own installation instructions. When done correctly, monitoring different parameters including CPU temperature, is easy.

Monitoring the temperature makes it easy to tell whether the device is operating within a safe range and identify any heating issues that could affect stability and performance.

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