Hardware Theory is a Slack Group for Hardware.
In their own words
Join Hardware Theory to discuss the latest in IoT, robotics, 3D printing, and everything else hardware.
This community does not have a forum
This community has a realtime chat
This community does not require an application to join
This community does not set up 1:1 pairing between it's members
This community does not have discounts and perks for it's members
This community does not host offline events and meetups
This community does not have an associated newsletter
This community does not have an associated job board
This community does not require a paid membership
HackadayHackaday.io is the world's largest collaborative hardware development community.
1 Bit SquaredOur 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.
on slackSofter Hardware is an exclusive community for mechanical engineers, hardware founders and experts to help each other face professional challenges.