The official home for the software is the . While development on the original S4A project ceased in 2015, the software remains functional and widely used in educational settings. Download Links by Operating System:
is a free, block-based programming environment that allows beginners—from young students to adult hobbyists—to control Arduino hardware without writing complex lines of code. By modifying the original Scratch 1.4 interface, S4A introduces dedicated blocks to manage sensors and actuators, making physical computing accessible to everyone. Where to Download S4A Software s4a software download