I used an Uno Rev 3; your pins may be different. Connect one wire of your straight key to pin 7, and the other to ground. Connect one wire of your speaker to pin 9, and the other to ground. I also ...

Now [Kevin] claims he built this robot for his 3-year-old son but we know he just used that as an excuse to spend way too much time in his workshop. The robot is a roundup of all the interesting ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

“I don’t understand, you don’t have the technology.” OK, so it’s not actually a futuristic tool with the same capabilities as the one off the hit TV series Dr. Who, but this homemade “sonic ...