2.4 Comparing the Power Strategies

SleepWalking provides the optimal balance of responsiveness and power efficiency for the majority of battery-powered applications, including IoT sensors, wearables, environmental monitors, and touch interfaces. These application categories share a common operational pattern: Extended periods of monitoring are punctuated by infrequent events that require CPU attention. In each case, SleepWalking aligns the power consumption profile with the application's actual processing requirements, consuming energy only when meaningful work occurs.

Table 2-1. Comparing Strategies for Different Application Requirements
Application RequirementRecommended Strategy
Real-time control, motor drives, continuous communicationActive mode
Periodic tasks where every sample requires CPU processingStandby with Interrupts
Threshold monitoring, conditional wake up, battery-powered sensorsSleepWalking
Remember: SleepWalking is not necessary for all applications. Applications that require higher clock speeds or continuous communication may not benefit from SleepWalking.