Ninja Blocks are simple but powerful open source hardware backed by an amazing web service called Ninja Cloud that allows your Ninja Block to talk to your favorite web apps.
Each Ninja Block comes with an RGB LED and built-in temperature sensor and accelerometer. Four expansion ports and a regular USB port allow you to add further inputs and outputs.
Ninja Cloud allows you to control your Ninja Blocks without writing a single line of code.
This is a nifty idea and very well thought-out, but it gets even better, because Ninja Blocks are open-source hardware. They have pushed the Eagle files to github, so you can check them out (or make your own).
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.