Generate SHA-512/256 Hash
SHA-512/256 is a truncated version of SHA-512. Algorithm is the same as SHA-512 but differs initial hash values (IVs) and final result is truncated to 256 bits to match the…
Install fdupes on Raspberry Pi
One of the ways to free up disk space on the system is to delete the duplicate files. The fdupes is a command line tool that allows to find duplicate…
NEO-6M GPS Module Interfacing with ESP8266 NodeMCU
NEO-6M is GPS module that allows to get raw GPS data in NMEA format. The raw data needs to parsed to obtain GPS information such as location coordinates (latitude and…
5 Tones Electronic Piano Using 555 Timer
This post presents circuit of an electronic piano which produces 5 tones. Circuit consists of the 5 push-buttons and when one of them is pressed, it produces the different tone…
Tick-Tick Sound Generator Using 555 Timer
This post presents circuit which generates the Tick-Tick sound through the speaker. Circuit is based on 555 timer which works in astable mode to produce a square wave output. This…
Install ps_mem on Raspberry Pi
The ps_mem is a command line tool that enables to check the RAM usage for a programs. This tool calculates the amount of RAM (private memory + shared memory) being…
Generate SHA-512/224 Hash
SHA-512/224 is a truncated version of SHA-512. Algorithm is the same as SHA-512 but differs initial hash values (IVs) and final result is truncated to 224 bits to match the…
Install bmon on Raspberry Pi
The bmon is a command line tool that allows to monitor network bandwidth. This tool can listen to the network traffic on multiple interfaces at the same time. Bandwidth usage…
Install chkrootkit on Raspberry Pi
A rootkit is a type of malware that is used to enable unauthorized access to a system. The chkrootkit is a command line tool that scans system in order to…
Install hwinfo on Raspberry Pi
The 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,…