Abstract: A split structure design for an internet of things (IoT) device including a control IoT device (CID) and a sensor IoT device (SID). An example of an apparatus provides a CID including a power transmitter to power a SID through a barrier and a control data transceiver to communicate with the SID through the barrier. The CID includes a power adjustor to increase a power transmission to the SID in steps, and an intermodule communicator to determine if communications have been established with the sensor IoT, and, if not, instruct the power adjustor to increase the power transmission to the SID by a step.