Receivers (100, 700, 800, 900, 1000, 1520, 15105), which may be external or implantable, are provided. Aspects of receivers of the invention include the presence of one or more of: a high power-low power module； an intermediary module； a power supply module configured to activate and deactivate one or more power supplies to a high power processing block； a serial peripheral interface bus connecting master and slave blocks； and a multi-purpose connector. Receivers of the invention may be configured to receive a conductively transmitted signal. Also provided are systems that include the receivers, as well as methods of using the same. Additionally systems and methods are disclosed for using a receiver for coordinating with dosage delivery systems.
