Multi-tasking for TinyOS

Tasks in TinyOS execute non-preemptively and run to completion, forcing programmers to keep individual tasks short and spread lengthy operations across multiple tasks – a major divergence from conventional programming paradigms. This report documents our attempt to incorporate multi-tasking into TinyOS and its subsequent effect on power consumption of “motes”. We succeeded in modifying the TinyOS task scheduler to incorporate a stack-based threaded model, but were unable to verify its effect on the power consumption of motes due to limitations of TOSSIM, the TinyOS simulator for wireless sensor networks.