The growing wireless sensor network research community lacks a standard method for evaluating hardware platforms. Traditional benchmark suites do not sufficiently address the needs of sensor network designers. This work provides motivation for a benchmark suite and details an approach for benchmarking TinyOS compatible hardware. To aid the development of future hardware architectures, we propose the creation of a standard single node benchmark suite, based on both real applications and "stressmarks." We present sample benchmark results and call for further work in this area.