Multi-mode control device

A multi-mode control device for controlling operation of a load device, the multi-mode control device comprising:

• a high-power interface electrically couplable to a high-power module for providing current to the load device from a power source external to the multi-mode control device;
• an occupancy sensor configured to receive a first current from the high-power module via the high-power interface;
• a trigger detection device electrically couplable to a low-power module via a low-power interface of the multi-mode control device, wherein the low-power interface is configured to receive a second current from the low-power module that is less than the first current;
• and
• a processing device configured for switching the multi-mode control device from a high-power mode for powering the occupancy sensor to a low-power mode by performing operations comprising:
• causing a reduction in the first current provided to the occupancy sensor, and
• causing the second current to be provided to the trigger detection device;
• wherein the trigger detection device is configured for detecting, in the low-power mode, a trigger;
• wherein the processing device is further configured for causing the control device to operate in the high-power mode based on the trigger detection device detecting the trigger.