In 2009, John Yu, the founder of Pinetree Electronics Ltd, started to design some  electronics learning kits to teach his son  basic STEM knowledge.

These kits are proved very useful in inspiring kid's passion on learning STEM subjects.   John's son was later enrolled by Carnegie Mellon University and hired by a top Silicon Valley IT company  in 2019. Since then  many parents and school teachers have become the loyal customers of John's products.

To help more young people get prepared for the high-paid IT industry  in their early ages, John registered OSOYOO®  brand in 2013 and hired more and more engineers from Canada ,Japan and China   to expand products line.

Now OSOYOO® product lines have more than 8000 SKUs, most of them are parts and learning kits for Arduino, Raspberry Pi and Micro:bit open source hardware platforms. 

Our goal is  to provide affordable, high-performance products which people can use to learn, solve problems and have fun. We’re committed to creating solid products backed by friendly, responsive service to delight our loyal customers around the world.