Programming with Scratch is now even more fun and hands-on with the circuit boards that can talk to Scratch. Here are some links that you can check out more info
Scratch projects can now “sense” and “respond” to the users’ inputs. In Pico Board, you can find light and sound sensor, button, 4 user-defined inputs and a variable resistor. Have fun!
(2) Makey Makey – Make + Key = Makey
Let your imagination runs wild with Makey Makey. Use that to control Scratch project with the typical commands (e.g, left and right) . Makey Makey is funded through the crowd funding site Kickstarter.