Here is another educational kit designed to familiarize you with electronics and smart DIY projects. Evive is an open source platform with Arduino MEGA at heart. It has a visual interface and modular design. It is ready for internet of things projects and has a built-in battery.
Evive features a variable voltage supply for your projects. It has a 2600 mAh battery inside. You get on-board switches to control the device. This STEM kit is currently available on Indiegogo.