In this article, we connect an KY-029 Dual Color LED to a Raspberry Pi 4 The KY-029 Dual Color LED module can emit red and green light. You can adjust the intensity of each color using a Python pwm pin or simply switch the LED…

Uptime is a command that returns information about how long your system has been running together with the current time, number of users with running sessions, and the system load averages for the past 1, 5, and 15 minutes. It can also filter the information…

hwinfo is a command line tool that can be used to get details about various hardware components on a system. It provides information about CPU, RAM, disks, network interfaces, USB controllers, etc. hwinfo was developed for openSUSE but lately was adapted for other Linux distributions…

cpufetch is a command line tool which shows a variety of CPU information such as processor name, microarchitecture, number of cores, etc. This tutorial explains how to install cpufetch on Raspberry Pi. Install cpufetch Use SSH to connect to Raspberry Pi. Download cpufetch binary from…

lshw is a command line tool that displays detailed information about hardware components on a system. This tool can display details about CPU, RAM, network interfaces, USB controllers, and much more. This tutorial explains how to install lshw on Raspberry Pi and run some commands.…

You can get Raspberry Pi OS in either a 32-bit and 64-bit architecture. When you install applications, it can be important to know whether the operating system is 32-bit or 64-bit. This quick guide shows how to check whether Raspberry Pi OS is 32-bit or…

The pwgen program generates passwords which are designed to be easily memorized by humans, while being as secure as possible. Human-memorable passwords are never going to be as secure as completely completely random passwords. This tutorial explains how to install pwgen on Raspberry Pi. Use…

Vcgencmd is a useful command has multiple options to measure clock speeds, temperatures, voltages. It is built in and has many parameters Measure Clock Speeds Description Command Get Arm CPU core speed vcgencmd measure_clock arm Get GPU core speed vcgencmd measure_clock core Get H.264 block…

The Raspberry Pi has some built-in LEDs such as PWR and ACT. There may be reasons for this such as saving power (albeit not much) and to remove visual indicators in certain environments This tutorial explains how to turn off built-in LEDs on Raspberry Pi…

sysbench is a scriptable multi-threaded benchmark tool based on LuaJIT. It is most frequently used for database benchmarks, but can also be used to create arbitrarily complex workloads that do not involve a database server. Install Sysbench on Raspberry Pi sudo apt-get install sysbench Run…