STM32 Nucleo expansion boards carry all the required components to
  • Evaluate ST devices to be used together with an STM32 MCU
  • Build STM32-based applications leveraging functionality and performance of ST’s device portfolio

The expansion boards are equipped with standardized interconnections, such as

  • an Arduino Uno R3 connector, or
  • a Morpho connector for a higher level of connectivity
Each expansion board is supported by STM32-based software modules.

The combination of STM32 Nucleo boards and expansion boards is a unified scalable approach with unlimited possibilities for application development, prototyping or product evaluation.

STM32 Power Shield : EEMBC-approved power-monitoring technology for energy-critical embedded development

To check the power consumption of embedded designs accurately, the STM32 Power shield (X-NUCLEO-LPM01A) provides developers an affordable tool with an ideal measurement range for ultra-low-power devices, such as Internet-of-Things (IoT) endpoints.

The STM32 Power shield features voltage supply to the target from 3.3V down to 1.8V, dynamically monitors the current under various operating conditions from 100nA to 50mA, measures static current from 1nA to 200mA, and also performs direct EEMBC benchmark measurements with a fast acquisition rate of 3.2 Msample/s. The STM32 Power shield has indeed been selected by EEMBC as the reference platform (Energy Monitor v2.0) for the IoTConnect and ULPMark benchmarks.

Firstly, with its built-in display, the STM32 Power shield can be used autonomously without the need of any external equipment. Secondly, its companion graphical PC application STM32CubeMonitor-Power (STM32CUBEMON-PWR) aims at setting parameters of the STM32 Power shield and visualizing the data captured to help developers meet their budget of power consumption. STM32CubeMonitor-Power also optimizes acquisition and parsing operations to flawlessly process the millions of measurements captured every second by the STM32 Power Shield without requiring expensive computers. Furthermore, this application includes a command line version so developers can use their favorite scripting language to perform custom test sessions and exploit all the information in their own applications.

The STM32 Power shield provides an accurate tool to measure the energy consumption of ultra-low-power devices. Together with the STM32CubeMonitor-Power graphical application, users will be able to analyse energy measurements and make better-informed decisions.

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