Lightweight Internet communications with the simple Gemini Protocol
Twins
© Lead Image © Nelli Valova, 123RF.com
Create Gemini pages to show sensor data or control a Raspberry Pi rover.
The Gemini Protocol [1] is a relatively new Internet communication protocol for accessing remote documents. Unlike an HTML web page that contain layers of style sheets, JavaScript, and HTML tags, a Gemini document is a simple readable document.
Gemini's Gemtext format is easy to learn, requiring about five codes. Children or new coders could easily put together a small documentation server or custom application server without many programming skills.
In this article, I introduce the Gemini protocol with three simple projects. The first project creates a Gemini server and client with just one line of Bash code. In the second project, a Bash script creates a common gateway interface (CGI) page that connects to a sensor to show temperature and humidity data. The third project uses Gemini document links to control Raspberry Pi general purpose input/output (GPIO) pins to drive a rover.
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
TUXEDO has unveiled a new InfinityBook Pro with an AMD Ryzen AI 300
This new notebook offers serious power that is ready for your business, development, or entertainment needs.
-
Is This the Year of Linux?
Another major organization has decided to kick Windows and Office to the curb, in favor of Linux.
-
Linux Mint 20 Reaches EOL
With Linux Mint 20 at its end of life, the time has arrived to upgrade to Linux Mint 22.
-
TuxCare Announces Support for AlmaLinux 9.2
Thanks to TuxCare, AlmaLinux 9.2 (and soon version 9.6) now enjoys years of ongoing patching and compliance.
-
Go-Based Botnet Attacking IoT Devices
Using an SSH credential brute-force attack, the Go-based PumaBot is exploiting IoT devices everywhere.
-
Plasma 6.5 Promises Better Memory Optimization
With the stable Plasma 6.4 on the horizon, KDE has a few new tricks up its sleeve for Plasma 6.5.
-
KaOS 2025.05 Officially Qt5 Free
If you're a fan of independent Linux distributions, the team behind KaOS is proud to announce the latest iteration that includes kernel 6.14 and KDE's Plasma 6.3.5.
-
Linux Kernel 6.15 Now Available
The latest Linux kernel is now available with several new features/improvements and the usual bug fixes.
-
Microsoft Makes Surprising WSL Announcement
In a move that might surprise some users, Microsoft has made Windows Subsystem for Linux open source.
-
Red Hat Releases RHEL 10 Early
Red Hat quietly rolled out the official release of RHEL 10.0 a bit early.