In some embodiments, the target device 930 may be configured switch between the awake and sleep modes in response to a communication received from an external device. In the illustrative embodiment of FIG. 9C, for example, the auxiliary receiver 938 may be configured to receive a communication from an external device and, in response to the communication, turn off one or more of the amplifiers 936, 942, 944, and 946, thereby putting target device 930 into sleep mode. It should be appreciated that although in the illustrative embodiment of FIG. 9C, auxiliary receiver 938 is shown as part of signal transformation circuitry 124c, in other embodiments, auxiliary receiver 938 may be part of any other suitable circuitry of the target device. For example, in some embodiments, target device 930 may include control circuitry (e.g., control circuitry 128 described with reference to FIG. 2) and/or an external communications module (e.g., external communications module 130 described with reference to FIG. 2) and auxiliary receiver 938 may be part of the control circuitry or the external communications module. Auxiliary receiver 938 may be of any suitable type and, for example, may be a ZigBee compatible module such that the auxiliary receiver 938 is configured to communicate according to one or more IEEE 802.15.4-based communication protocols.
