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Open Hardware/Modding Projects

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Hardware
  • ANAVI Gardening uHAT adds soil and other sensors to Raspberry Pi (Crowdfunding) - CNX Software

    We’ve been covering and reviewing ANAVI open-source hardware boards for several years now, either standalone boards based on ESP8266, or add-on boards for Raspberry Pi.

    The ANAVI Gardening uHAT is the latest board from Leon Anavi. It is a micro HAT designed for Raspberry Pi Zero to Raspberry Pi 4 SBCs that offers interfaces for soil sensors and other environmental sensors allowing measurements of soil moisture, atmospheric pressure and humidity, temperature with a waterproof sensor, and light intensity for gardening applications.

  • ZB-GW03 ESP32-based Ethernet Zigbee gateway works with Tasmota firmware - CNX Software

    ZB-GW03 is an Ethernet Zigbee Gateway compatible with eWelink mobile app and with a design similar to SONOFF ZBBridge gateway but replacing ESP8266 SoC by ESP32 SoC, and adding an Ethernet port.

    The ZB-GW03 gateway is apparently based on the same Silicon Labs EFR32MG21 Zigbee Arm Cortex-M33 chip and has been hacked to run Tasmota open-source software for people preferring more flexibility and/or integration with OpenHAB or Home Assistant open-source home automation frameworks via Zigbee2MQTT.

  • Arduino Orchestra Plays The Planets Suite | Hackaday

    We’ve seen a great many Arduino synthesizer projects over the years. We love to see a single Arduino bleeping out some monophonic notes. From there, many hackers catch the bug and the sky is truly the limit. [Kevin] is one such hacker who now has an Arduino orchestra capable of playing all seven movements of Gustav Holst’s Planets Suite.

    The performers are not human beings with expensive instruments, but simple microcontrollers running code hewn by [Kevin’s] own fingertips. The full orchestra consists of 11 Arduino Nanos, 6 Arduino Unos, 1 Arduino Pro Mini, 1 Adafruit Feather 32u4, and finally, a Raspberry Pi.

  • 3D Printed Research Robotics Platform Runs Remotely | Hackaday

    By patching Ubuntu Linux, and enabling preemptive multitasking for real-time scheduling, as well as carefully selecting Wi-Fi drivers, it was possible to get raw packets out to robot in about 1 ms, enabling control loop bandwidths of around 1 Khz. And, that, was fast enough to run at least sixteen motors in parallel.

  • Automated Window Blinds Using MQTT And Home Assistant | Hackaday

    Finnish software engineer [Toni] is on a quest to modernize his 1991 house, and his latest project was to automate the window blinds and control them using Home Assistant. Unless your blinds have built-in motors, most of the effort of such a project centers around how to integrate and attach the motor — and as [Toni] points out, there are tons of different blinds with all kinds of operating mechanisms. But once you solve that issue, half the battle is over.

    These particular blinds require less than one turn of the control rod to go from fully open to fully closed, and [Toni] selects a 270-degree range-of-motion, 20 kg*cm torque servo motor to drive them. He really wanted to install the motor inside the window, but it just wouldn’t fit. Instead, each servo motor is mounted in a custom 3D-printed case installed on the window frame just below the operating rod. An ESP8266-based controller box is installed above the window, hidden behind curtains, and operates all three servos.

More in Tux Machines

SimpleX Is a Chat Network That Preserves Metadata Privacy

SimpleX is an open-source decentralized client-server network that uses disposable nodes to asynchronously pass the messages, providing receiver and sender anonymity. Messaging apps make it easy to communicate and connect with people around the world. However, with new ways to communicate and connect via technology, there are also new ways for your privacy and security to be breached. SimpleX is one of the most private and secure chat and applications platform that you can find out there. The main difference of SimpleX Chat is that it does not use any form of identity at all for message routing, requiring to establish initial connection either out of band or via some touch points that do not participate in the message routing, so the only way to build connections of SimpleX network is by observing IP packet times. Read more

Windows box won't boot? SystemRescue 9 may help

The latest version of an old friend of the jobbing support bod has delivered a new kernel to help with fixing Microsoft's finest. It used to be called the System Rescue CD, but who uses CDs any more? Enter SystemRescue, an ISO image that you can burn, or just drop onto your Ventoy USB key, and which may help you to fix a borked Windows box. Or a borked Linux box, come to that. SystemRescue 9 includes Linux kernel 5.15 and a minimal Xfce 4.16 desktop (which isn't loaded by default). There is a modest selection of GUI tools: Firefox, VNC and RDP clients and servers, and various connectivity tools – SSH, FTP, IRC. There's also some security-related stuff such as Yubikey setup, KeePass, token management, and so on. The main course is a bunch of the usual Linux tools for partitioning, formatting, copying, and imaging disks. You can check SMART status, mount LVM volumes, rsync files, and other handy stuff. Usefully, there's also a full local copy of the website and all documentation, including a console-mode web browser to read it with. Read more

GNOME Shell ’Extensions Manager’ App Gets a Big Ol’ Update

Remember that new app for installing GNOME extensions I wrote about earlier this month? Well, it just got its first major update. And it adds a ton of much-requested features. For those unfamiliar with it, Extension Manager is a desktop app that lets you search, browse, manage, and install GNOME extensions without having to use a web browser. The app is built in GTK4 and libadwaita and is available to install from Flathub. Read more

today's howtos

  • Hosting my static sites with nginx

    Originally I thought that running my own servers would require a lot of maintenance and be a huge pain, but I was chatting with Wesley about what kind of maintainance their servers require, and they convinced me that it might not be that bad. So I decided to try out moving all my static sites to a $5/month server to see what it was like. Everything in here is pretty standard but I wanted to write down what I did anyway because there are a surprising number of decisions and I like to see what choices other people make.

  • How To Install Wireshark on Debian 11 - idroot

    In this tutorial, we will show you how to install Wireshark on Debian 11. For those of you who didn’t know, Wireshark is a free and open source software (FOSS) allows users to easily capture and analyze packets. In real scenarios Wireshark was useful to detect anomalies in network traffic. Wireshark can be also used to sniff traffic. Wireshark is a cross-platform software that is available for various Linux/UNIX distributions, Mac-OS, Solaris, BSD & Windows, etc. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of the Wireshark network protocol analyzer on a Debian 11 (Bullseye).

  • How to Install Python 3.10 (or 3.11) on CentOS - Linux Stans

    In this tutorial, we’re going to show you how to install Python (the latest version) on CentOS with step-by-step instructions. This tutorial includes instructions for Python 3.10 and Python 3.11 on CentOS 7 and CentOS 8.

  • How to Route Traffic to Docker Containers With Traefik Reverse Proxy – CloudSavvy IT

    Traefik is a leading reverse proxy and load balancer for cloud-native operations and containerized workloads. It functions as an edge router that publishes your services to the internet. Traefik routes requests to your containers by matching request attributes such as the domain, URL, and port. The proxy incorporates automatic service discovery so you can add new containers in real-time, without restarting the Traefik service. In this guide, we’ll put together a simple Traefik v2 deployment that will publish multiple Docker containers. This lets you use one Docker installation to provide several services over the same port, such as a web application, API, and administration panel.

  • How to convert Centos 8 Linux to Alma Linux 8

    CentOS Linux 8 was discontinued at the end of 2021. Check out more information about that in this in this article CentOS Linux 8 will end in 2021 and shifts focus to CentOS Stream. The team at CentOS decided to shift focus to CentOS stream, an upstream version of RHEL. CentOS stream places itself between Fedora Linux and RHEL. It is not 100% RHEL clone but ahead of RHEL development. Other distros that are 100% compatible with RHEL 8 have come up including Rocky Linux and Alma Linux. In this guide, we will learn how to convert an existing CentOS 8 distribution into Alma Linux without reinstalling a new operating system. The Alma Linux team provides an automated script for this purpose. An in-place upgrade does not require formatting of hard disk and due to that fact all settings, programs, and files on your current CentOS 8 system will be preserved.

  • LFCS – Creating LDAP on Ubuntu | Linux.org

    I hope you have looked over the previous article to set up OpenLDAP on CentOS 7 system found here. This will build on that article somewhat. We are going to install and configure OpenLDAP on Ubuntu and create an initial database. I did not do some things done here in the previous article, so you may learn something useful here for CentOS or Ubuntu.