X-NUCLEO-PM33A1 [STMicroelectronics]

The X-NUCLEO-PM33A1 electricity metering IC expansion board is based on the STPM33 electricity metering IC with a capability of measuring both AC and DC sources with accuracy of 0.1%.

It can be powered through the STM32 Nucleo development board or through an external power supply (3.3 V).

The current measurement is done using the shunt mounted on the board.

The connector is available for measuring the current using CT.

The X-NUCLEO-PM33A1 expansion board is compatible with the Arduino® UNO R3 connector pin assignment and can easily be plugged onto any STM32 Nucleo development board.

You can stack other expansion boards to evaluate different devices that work together with the electricity metering.

• STPM33 based metering expansion board
• Dedicated IC for electricity metering with 0.1% accuracy
• Capable of measuring both AC and DC sources
• Compatible with STM32 Nucleo boards
• Equipped with Arduino® UNO R3 connector
• Externally powered or powered through the Arduino® UNO R3 connectors
• Free comprehensive development firmware library and example for STPM33, compatible with STM32Cube firmware
• RoHS compliant
• Onboard EEPROM for saving the metering data
• On-board digital isolators on UART and SPI connections to enable users to evaluate STPM33 device by isolating from MCU
• LEDs connected to STPM33 for checking pulses directly from the device
• Connectors for external CT connections