When creating a container, the Docker image is downloaded automatically and stored locally. There might be a case, to download image manually without creating container. This tutorial shows how to...
Monthly Archives: November 2022
During the testing or development process, Docker images are downloaded to create containers. Some of the images are forgotten and unused later. Unused and outdated Docker images takes a disk...
Docker images are used to create containers. An image is downloaded and stored locally when a container is created using a specific Docker image. This tutorial demonstrates how to get...
The Raspberry Pi has GPIO pins that can be used to connect various sensors to measure changes in physical properties such as temperature, capacitance, resistance, etc. This tutorial shows how...
There are various Raspberry Pi models. Some of the models looks similar visually. Model can be easily identified by using command line. This tutorial shows how to get a model...
A Bluetooth MAC (Media Access Control) address is a unique 48-bit value assigned to a Bluetooth device by the manufacturer to uniquely identify it.
This tutorial provides 3 methods how...
The official Raspberry Pi OS images are generated using pi-gen tool, which available on GitHub repository. Tutorial shows how to get date when Raspberry Pi OS image was generated.
The...
Raspberry Pi OS is available in a 32-bit and 64-bit architecture. When installing applications, it is important to know whether the operating system is 32-bit or 64-bit. This tutorial shows...
Most of the time, packages requires additional dependencies to work as intended. This tutorial demonstrates how to get package dependencies on Ubuntu.
Use apt-cache or apt command with depends argument...
Gaussian blurring is an image smoothing algorithm that used to remove noise from the image.
OpenCV has GaussianBlur function that allows to apply Gaussian blurring on image. Smoothing is controlled...