Dual-phase energy metering evaluation board with 2 current transformers based on the STPM34

The STPM34 evaluation board is a class 0.2, dual-phase meter with 2 CTs for power line systems with Vnom= 140 to 300 V(RMS), Inom/ Imax= 5/100 A(RMS), flin= 50/60 Hz ± 10% and Tamb= -40 to +85 °C.

Measured active/reactive power can be output from two programmable LEDs on the board.

The board can be interfaced with a PC running evaluation software through an isolated RS232 port, or through the STEVAL-IPE023V1 USB isolated interface tool for configuration and data reading.

The board also has SPI/UART pins available to interface a microcontroller for application development.

Key Features

  • 0.2% accuracy dual or split-phase meter
  • Vnom(RMS) = 140 to 300 V, Inom /Imax(RMS) = 5/100 A, flin = 50/60 Hz ± 10%
  • Connector for USB isolated hardware programmer tool STEVAL-IPE023V1 and PC GUI
  • RS232 and UART isolated connectors to PC GUI
  • SPI/UART switch for device peripheral selection
  • 2 programmable LEDs on board
  • Digital expansion to external system-on-chip or MCU
  • 3.3 V power supply: external or through STEVAL-IPE023V1 isolated USB board
  • IEC61000 standard compliant
  • RoHS compliant


Hardware Resources

Board Manufacturing Specifications
Description Version Size
Bill of Materials
Description Version Size

Publications and Collaterals

Description Version Size
STPM32, STPM33, STPM34 - Taking care of every milliwatt 10.2016 1 MB

Presentations & Training Material

Description Version Size
STPM32, STPM33, STPM34 Smart Metering ICs 1.0 825 KB

Technical Documentation

Product Specifications
Description Version Size
DB2285 DB2285: Dual-phase energy metering evaluation board with 2 current transformers based on the STPM34 1.0 441 KB
User Manuals
Description Version Size
UM1748 UM1748: EVALSTPM34, EVALSTPM33, EVALSTPM32 evaluation board 2.0 976 KB
UM2118 UM2118: Metrology firmware for the STM32F407VG and the STPM32 devices 1.0 905 KB
UM1719 UM1719: The STPM3x evaluation software 1.2 1 MB

Tools and Software

Embedded Software
Evaluation Tool Software
Support & Community
Featured Products
Featured Applications

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
EVALSTPM34 ActiveCARDIndustrialEcopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.