Wireless sensor networks (wsns) technology has gained increasing importance in various areas including industrial automation , healthcare , agriculture, civil and military applications . one of the major challenges for wsns lie in the node energy constraint. traditionally, batteries are used as the electrical energy power sources to power wireless sensors but they have a limited life span and are expensive to maintain since it is undesirable to recharge or replace the batteries of thousands of sensor nodes frequently. hence, they are not a long-term viable source of energy for wsns and embedded systems. hence a technology that can substitute the traditional power supply is focused. the technology of powering sensors from piezoelectric power generator is discussed in our project. vibrations are present all around us and are especially prominent in bridges, roads, and rail tracks ranging from 20 hz to150 hz and mechanical vibrations are available in many environments. mechanical energy in form of ambient vibrations, fluid flow, machine rotations and bio-motion present a source of energy that is available widely and at all times. piezoelectric materials can be used to harvest this energy since they have the unique ability of converting mechanical strain energy into useful electrical energy. vibration energy harvested through piezoelectric elements provides the highest power densities. the system consists of vibration power generator and a highly efficient energy harvesting circuit consisting of a buck boost converter and the energy is stored in a renewable storage device (super capacitor). by combining buck and boost regulator designs it is possible to have a regulator circuit that can cope with a wide range of input voltages both higher and lower than that needed by the nodes. vibration-based energy harvesters can thus effectively replace batteries. the low cost and affordability of the module makes it highly attractive to be commercialized as a product. moreover, it is a renewable source of energy and is environment friendly. they don’t have a limited lifespan and hence don’t require periodic replacement. hence, they have a potentially wider application domain than the other sources. we have used components which dissipate very little power so as to obtain maximum efficiency. energy harvested can also be used in powering street lamps and led lightings during night time, power generating shoes or boots and power generating sidewalks .we can even light the street lights using the power generated from the harvester.