[$] Arduino: open source for microcontroller boards

Arduino has emerged as one of theprime success stories of the open-hardware movement. In recent years, thecompany has shifted its focus toward Internet of Things (IoT)applications. As part of this transformation, it has completely redesignedits open-source integrated development environment (IDE), adding a moreprofessional feature set for its hobbyist target audience. If you haveexperimented with Arduino in the past, but have lost track of itsprogress, now might be a good time to give it another try.