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    STDES-EMETER1PV1

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    Single phase smart meter using STPM33 and STM32L4
    Learn More about STDES-EMETER1PV1

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    Parameter NameParameter Value
    Operating RangeIndustrial
    Core ProductSTPM33, STM32L433VCT6
    GradeIndustrial
    Key features
    • Based on STM32L433VCT6 (100 pins, LQFP) and STPM33
    • STPM33 interfaced using SPI with MCU
    • Current transformer (CT) and shunt sensing supported for current measurements
    • Shunt connected on the primary channel and CT on the secondary
    • Active energy difference of two channels signaling tamper condition
    • Magnetic tamper detection using Hall effect sensor by MCU interrupt line
    • EEPROM interfaced using I²C with MCU to store accumulated energy
    • Switch interface for case tamper and terminal cover tamper
    • Low power mode supported
    • Neutral missing tamper detection implemented using special duty cycling algorithm
    • Connectors for GPRS or Sub 1-GHz connectivity
    • Measuring RMS/instantaneous voltage, current, kW and power factor (PF)
    • Glass LCD (1/8 duty cycle and 20 segments) driven by the MCU LCD controller
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