Investigation of Power Consumption in Microcontroller Based Systems

Abstract

In this paper, the current consumption of microcontroller with varying frequency and voltage has been experimented in an attempt to understand the power consumption of microcontroller. The power consumption of microcontroller, when connected to an active load, is investigated. The microcontroller is experimented in sleep mode and analyzed the current consumption in its deepest sleep mode and active mode. Among the various wake-up sources, we have used an external input pin and watchdog timer method for the experimental setup. Using the obtained values the battery life is estimated.