• In this article, we connect an KY-031 Knock Sensor to a Raspberry Pi 4 When the KY-031 sensor is subjected to a knock or vibration, the two output pins are short-circuited. We will use Python for the example The sensor looks like this Parts Required…

  • 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…

  • 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…

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