Raspberry Pi - The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.
Reality Editor - MIT's new app lets you program any object
Arduino - Build your own electronics
PlatformIO - Next-generation IDE for IoT
codebender - The Largest Arduino Playground In The World. Create, share and run your code anywhere.
My Devices - Drag and drop IoT project builder for Raspberry Pi