How to check power consumption of embedded designs accurately

25th October 2017

Lanna Deamer

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Datasheet

Manufacturer, STMicroelectronics has developed a power shield that allows developers to check the power consumption of their embedded designs accurately, using the same hardware chosen by EEMBC as the new reference platform for the IoTConnect and ULPMark (Energy Monitor V2.0) benchmarking frameworks.

Compatible with STM32 Nucleo development boards, the STM32 Power Shield (X-NUCLEO-LPM01A) dynamically monitors the current under various operating conditions.

It has a built-in display that allows current to be read directly and eliminates the need to use a multimeter. When used with EEMBC IoTConnect and/or ULPMark, the STM32 Power Shield offers an extended GUI for direct benchmark measurements and energy display.

The measurement range, from 100nA to 50mA, is suitable for testing small devices that face stringent power limits, such as Internet of Things (IoT) endpoints.

With the companion graphical PC application STM32 Cube Monitor-Power (STM32CUBEMON-PWR), the STM32 Power Shield gives detailed insights that would otherwise require an oscilloscope or other expensive test gear.

Among the user-friendly features of this multi-OS tool, which can run in various desktop environments, energy profiling gives engineers valuable information to help optimise power consumption.