Demo showing how S3GPIO on a Raspberry Pi can be used launch other Scratch projects from a menu
A Chrome browser extension re-directs Scratch 3 translate extension calls to a python web-server running on same Raspberry Pi. The web-server talks to my ScratchGPIO python handler to pass commands and re-transmit them back to Scratch 3 Thanks to David Ferguson for Chrome extension and Philippe Minnerve, Sarah Lacaze, Laurence Molloy and Alan Yorinks for testing