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New electronic, computer and home automation technologies.
ZX Spectrum 48K Composite Video Mod
Making a composite video mod on a ZX Spectrum 48k is a process that requires knowledge of electronics and skill with a soldering iron. The objective of this mod is to change the RF (Radio Frequency) signal for a composite video signal, which can be used in...
Assemble a new ZX Spectrum issue 4B from new parts
Here we document the exciting experience of building a new ZX Spectrum issue 4B board from scratch. Thanks to innovative individuals like Charlie Ingley, who created a replacement ULA chip, this project is now possible. Initially it has been designed and...
DiyBMS v4 BMS for Lithium batteries
DiYBMS is an open source lithium battery optimizer by Stuart Pittaway
How To Set up SSH Keys on a Linux
This page explains a public key and shows you how to set up SSH keys on a Linux or Unix-like server. I am assuming that you are using Linux or Unix-like server and client with the following software: OpenSSH SSHD server OpenSSH ssh client and friends on Linux...
Configuring an rsync Task
Configuring an rsync Task How to configure automated data transfers using rysnc. 9 minute read Data often needs to be copied to another system for backup or when migrating to a new system. A fast and secure way of doing this is by using rsync. Rsync provides the...
How to configure static IP address in CentOS 8
There are two quick ways to set an IP address on the network interface of CentOS 8 operating system. One is using the nmtui command and the other is by direct editing of network files. If you don't feel comfortable editing files...
