Table 2.

Prioritized list of techniques used for optimizing run-time current on Cave Pearl data loggers and associated current reduction.

Techniques for Optimizing Run-Time Current	Approximate Reduction
Put the processor to sleep while waiting for sensor readings	5 mA × Δt
Use higher bus speeds to accelerate sensor communication	5 mA × Δt
Select sensors that use less power while taking a new reading	Up to 5 mA × Δt
Use green indicator LEDs with large limit resistors	2 to 5 mA × Δt
Disable on-chip peripherals with Power Reduction Register settings	0.01–1.0 mA × Δt
When combined, these techniques can reduce average run-time currents by up to 90%