However, most existing AAL systems are based either on intrusive and costly equipment (e.g., cameras, wearables) or on sensor nodes which are relatively complex to configure, program and extend (e.g., TinyOS platforms). Recent developments in embedded systems and microcontroller technologies have opened up new opportunities for the automation industry. First evidence for the suitability of microcontroller platforms in smart home automation applications already exists [14,15]; nevertheless, the potential of microcontrollers for building robust and cost-effective AAL systems remains open to investigation. Hands-on experiences are missing in extending the capabilities of microcontrollers with appropriate low-cost off-the-shelf communication, sensory and actuation components so as to effectively support AAL services. Furthermore, energy management issues need to be tackled to improve systems’ endurance, while privacy concerns should be convincingly addressed to increase user acceptance.