Since the Raspberry Pi is frequently accessed remotely, such as through an SSH or VNC connection, we can’t always take a peek at the device to see which USB devices are physically connected to it. Furthermore, it can be useful to query the USB ports from the system itself, just to see if the devices or connections are actually being detected. In this tutorial, you will see how to check the USB devices that are connected to a Raspberry Pi.
administration
Raspberry Pi 4 enable/disable Bluetooth
Newer Raspberry Pi models such as the Raspberry Pi 4 come with Bluetooth capabilities built in. To get started using Bluetooth on your Raspberry Pi, you will have to make sure that the service is enabled. This allows the device to utilize the Bluetooth hardware to connect to peripheral devices like mice, keyboards, and headphones. If you are not planning to use Bluetooth, then you may want to keep it disabled in order to minimize unnecessary overhead. In this tutorial, you will see how to enable or disable Bluetooth on the Raspberry Pi model 4.
How to change Python versions on Raspberry Pi
It is possible to have multiple versions of Python installed on the Raspberry Pi simultaneously. It is also simple enough to switch between the versions, which may come in handy for Python programmers that need to support a mix of legacy and modern Python code. Or, perhaps you want to try out a new beta or nightly Python build, without replacing the more stable copy you already have. In this tutorial, you will see how to change between various Python versions on the Raspberry Pi.
How to autostart Python script on Raspberry Pi
Many users want their Raspberry Pi to perform tasks unattended, as part of automating the Raspberry Pi. This cuts down on repetitive tasks that usually fall on the administrator’s lap. A common way to trigger automatic events is when the Raspberry Pi first boots up. Such a configuration allows us to start a Python script automatically every time the Raspberry Pi first boots up.
Raspberry Pi Debian GNU/Linux comes with absolutely no warranty
Whenever you first log in via SSH to your Raspberry Pi, you are greeted by the “motd” (message of the day). This message includes a bit of text and system information, along with the line Raspberry Pi Debian GNU/Linux comes with absolutely no warranty. If you are getting sick of reading this repetitive information whenever you log in to your Raspberry Pi, then we have good news for you: it is relatively simple to change this message or to disable it completely. In this tutorial, you will see how to change or disable the message of the day (motd) for the Raspberry Pi.
How to check temperature on Raspberry Pi
Although the Raspberry Pi is small, it packs a lot of power into that small space. When doing intensive tasks, the Raspberry Pi can generate too much heat, and it does not come with a fan to help keep the temperature down. For this reason, it is important to keep an eye on your Raspberry Pi’s temperature to make sure it does not get too hot and risk damaging components. Furthermore, the Raspberry Pi will not perform up to par if it needs to throttle itself to keep temperatures down.
How to enable xrdp on Raspberry Pi
When it comes to remotely accessing your Raspberry Pi, you have a lot of options available, such as SSH and VNC. Yet another option available would be xrdp, which is the open source implementation of the Remote Desktop Protocol (RDP). RDP is commonly used on Windows systems, where it is installed by default, and other operating systems also like to implement this protocol in some capacity due to its widespread use and reliability.
List of Linux Distributions available for Raspberry Pi
The Raspberry Pi already has its own official operating system, known as Raspberry Pi OS. However, there is nothing proprietary about Raspberry Pi OS, or any reason that you must use it. Raspberry Pi OS is a Debian derivative with a few tweaks and curated software meant to make your Raspberry Pi experience better out of the box. If you so choose, there are a variety of other Linux distributions that you can run on the Raspberry Pi as alternatives.
How to enable X11 forwarding on Raspberry Pi
Enabling X11 forwarding on the Raspberry Pi will allow you to run graphical applications on the device from your remote PC. This has some advantages over using xrdp or VNC on your Raspberry Pi, since the applications will look better since they are running on your local PC. In this tutorial, you will see how to enable X11 forwarding on a Raspberry Pi.
How to change keyboard layout on Raspberry Pi
In this tutorial, you will see how to change the keyboard layout on your Raspberry Pi. This will allow you to access all of the necessary characters available in the language of your desire, as well as give you an opportunity to switch between a QWERTY or other type of keyboard layout. We will assume that you are using the official Raspberry Pi OS, from which the keyboard layout can be configured via both command line and GUI.
How to check firmware version on Raspberry Pi
The developers of Raspberry Pi regularly release new firmware versions to address certain issues or introduce new features to the Raspberry Pi. Knowing your device’s firmware version can help you determine if it is time to upgrade, or can be helpful when troubleshooting an issue in order to see if it is isolated to a certain firmware version. In this tutorial, you will learn how to check the firmware version on a Raspberry Pi, as well as how to update the firmware, bootloader, and operating system.
How to benchmark SD card on Raspberry Pi
SD and microSD cards are not known for their speed, but their slim size makes them the default choice for storage in the Raspberry Pi. Most users will install the Raspberry Pi OS to a microSD or SD card, and then use additional hard drives if the need for greater read and write speeds arises. In order to use an SD card or microSD card for storage on the Raspberry Pi, it should pass the benchmark test for minimum speeds.