If you want to do a quick design for 3D printing, Tinkercad is pretty easy to use. Although it was briefly in danger of going out of business, it was bought by AutoDesk who have made a lot of impro… ...

The best way to learn Arduino, as with any other hands-on skill, is to practice creating a project. You can find a host of ideas online, but the best resource to find Arduino projects to try is ...

so tinkercad has circuit designand arduno now, a real arduino is $20, IDE is free, fritzing is free and does all the exact same layout stuff locally, you save your files and keep them forever.