Hardware Communities
Communities for hardware engineers, electronics hobbyists, and embedded systems developers. Discord and Reddit host communities for Arduino, Raspberry Pi, PCB design, and DIY electronics, alongside more professional spaces for engineers working on commercial hardware products.
Trending in Hardware
Communities getting the most attention right now.

r/buildapc
4,500,000 membersPlanning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community as they piece together their desktop.

Reddit community for programmable logic controllers (PLCs) and industrial automation. Covers ladder logic, SCADA, HMI, and all things automation.
All communities in Hardware
Sorted by member count, largest first.

r/buildapc
4,500,000 membersPlanning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community as they piece together their desktop.

r/hardware
2,300,000 membersThe goal of /r/hardware is a place for quality hardware news, reviews, and intelligent discussion.

FIRST Robotics Discord
25,561 membersThe unofficial Discord server for FIRST Robotics Competition (FRC) teams. A place for students, mentors, and alumni to discuss strategy, build season, programming, and the culture of FIRST.

Open Compute Project
8,000 membersOpen Compute Project (OCP) aims to develop open hardware solutions for data centers. The OCP is an initiative made up of cheap, vanity-free servers, modular I/O storage for Open Rack (a rack standard designed for data centers to integrate the rack into the data center infrastructure) and a relatively “green” data center design.

1 Bit Squared
900 membersOur mission here at 1BitSquared is to create, manufacture and sell open-source hardware that is made for and together with the open-source hardware community. Because of this we believe that it is very important to be connected and share ideas. This community has a discord and discourse server.
Softer Hardware
110 membersSofter Hardware is an exclusive community for mechanical engineers, hardware founders and experts to help each other face professional challenges.
Join Hardware Theory to discuss the latest in IoT, robotics, 3D printing, and everything else hardware.
The official Arduino community forum where makers, students, and professionals discuss Arduino projects, get help with code, and share ideas about hardware and electronics.
The official Raspberry Pi community forums. Get help, share projects, and discuss everything related to the Raspberry Pi single-board computers and the broader maker ecosystem.

A Facebook group for hobbyists, students, and professionals interested in robotics and automation. Share projects, ask questions, and discuss the latest in robot technology.

A Facebook community for LEGO Mindstorms builders, FIRST LEGO League participants, and kids and adults who love building and programming robots with LEGO bricks.

A Telegram channel and group for robotics and IoT developers. Get news, tutorials, project ideas, and connect with fellow builders working on embedded systems and autonomous robots.

A subreddit for discussing all types of robotics. If you are a hobbyist, student, or professional, this is the place for you!

The official subreddit for BattleBots, the sport of combat robotics. Discuss the show, the robots, the teams, and the competition!

The Raspberry Pi subreddit! Learn, share, and explore anything related to the Raspberry Pi single-board computer and its accessories.
ChiefDelphi.com is the premiere online community for FIRST Robotics Competition (FRC) teams. Students, mentors, and alumni discuss technical robot building, programming, team strategy, and competition logistics.

Subreddit for embedded systems engineers and hobbyists. Covers microcontrollers, firmware, RTOS, and hardware interfacing - closely tied to robotics development.
Official NVIDIA developer forum for Jetson embedded AI platforms. Topics include robotics, autonomous machines, computer vision, and edge AI development.
The Element 14 Community is a hub for engineers, makers, and electronics enthusiasts to share projects, enter design challenges, and learn about new technologies.
The Acer Community is a dedicated space for Acer users to seek support, share knowledge, and engage in discussions about Acer products and services.