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‘IoT Power-consumption Meter’ Is Quite Accurate

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To help developers check the power consumption of their embedded designs accurately, STMicroelectronics has unveiled the STM32 Power shield with an ideal measurement range for testing devices like Internet-of-Things (IoT) endpoints. The STM32 Power shield has been selected by EEMBC as the reference platform (Energy Monitor v2.0) for the IoTConnect and ULPMark benchmarks.

The new expansion board can be used to supply and measure the consumption of STM32 Nucleo-32, Nucleo-64 or Nucleo-144 boards, using Arduino connectors. Alternatively, it allows to supply and measure the consumption of any target connected by wires via the basic connector.

The measurement range, from 100nA to 50mA, is ideal for testing small ultra-low-power devices, such as Internet-of-Things (IoT) endpoints, says the firm.

The new product dynamically monitors the current under various operating conditions. An interesting feature is that the shield can be used autonomously without the need of equipment like multimeter.

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Another benefit is the product’s companion graphical PC application, called STM32CubeMonitor-Power, which gives developers detailed insights to analyze energy measurements and make decisions. This, according to ST, 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 optimize power consumption.

The STM32 Power Shield X-NUCLEO-LPM01A is available now, priced $70.00, and ships with STM32CUBEMON-PWR included.

Product information is available at

For further details, click here.

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