Microduino mCookie is a small, magnetically stackable, Arduino-compatible electronic modules on LEGO. There are four magnets inside four corners and the modules will reject each other if they are not angled correctly, you can’t get it wrong and also it eliminates the need of soldering.
Modules are Arduino-compatible open source hardware. It can be programmed in an Arduino IDE development environment and integrated into existing Arduino sketches. With LEGO compatibility, it is easier for beginners and children to get started with DIY electronics.
You can write programs in the Arduino IDE and transmit code to the hardware via USB, while beginners can use the Scratch graphic programming tool to drag and drop components.
The project is already backed on the Kickstarter and has reached its funding goal of $40.000, the early bird pricing has already gone, but you can still pick up for $78. An estimated delivery is on July of 2015.