The intra-corporeal autonomous capsule has a transducer that is configured to convert an external force applied to the capsule into electric potential. The transducer with piezoelectric strip is coupled to a movable actuating portion having a rigid surface to directly receive external force. The piezoelectric strip is fixed to a portion of the capsule. An energy storage and management module is powered by a energy harvesting transducer under the effect of deformation of the piezoelectric component due to the external force.
