Energy harvesting Evaluation kit based on the SPV1050

The STEVAL-ISV021V1 is a demonstration kit which consists of a complete energy harvesting module based on the SPV1050 ULP energy harvester and battery charger, having the purpose to show the electrical performance of the power converter and many other fundamental electrical quantities related to the overall system.

The power manager is configured as a buck-boost converter, fitting the electrical characteristics of the mounted PV panel and battery.

A power monitoring board along with a software GUI are used to monitor and to graph both of PV panel and battery voltage and current, and system performances like MPPT accuracy and conversion efficiency.

The STEVAL-ISV021V1 represents the standalone harvesting module that can be interfaced with a wireless sensor node to provide the microcontroller, transmitter and sensors with the energy scavenged and stored into the battery.

Furthermore, the STEVAL-ISV021V1 embeds an extension connector to interface and to monitor of some of SPV1050 input and output signals through a microcontroller based board.

Key Features

  • SPV1050 based harvesting dongle board
  • PV module soldered on the back
  • Lithium coin cell battery
  • PV module electrical characteristics at 200 lux:
    • VOCTYP = 9.8 V, ISCTYP = 20 μA
    • VMPTYP = 8 V, IMPTYP = 18 μA
  • Li-Ion battery:
    • CapacityNOM = 120 mAh
    • VNOMINAL = 3.6 V
    • VCHARGE = 4.2 V
    • VEND-OF-DISCHARGE = 2.75 V
  • Interface to power monitoring board
  • PV module voltage and battery monitoring
  • Ambient light sensor for irradiance level measurement
  • Supported by SW GUI to show MPPT accuracy and conversion efficiency




Technical Documentation

Product Specifications
Description Version Size
DB2136 DB2136: Energy harvesting demonstration kit based on SPV1050 3.0 336 KB
Application Notes
Description Version Size
AN4396 AN4396: STEVAL-ISV021V1, energy harvesting system based on SPV1050, PV panel and battery 1.0 754 KB
User Manuals
Description Version Size
UM1752 UM1752: Software GUI user guide for STEVAL-ISV021V1, STEVAL-IDS002V1 and STEVAL-IDS003V1 evaluation boards 2.0 3 MB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-ISV021V1 gerber files 1.0 97 KB
Bill of Materials
Description Version Size
STEVAL-ISV021V1 BOM 1.0 148 KB
Schematic Pack
Description Version Size
STEVAL-ISV021V1 schematics 1.0 91 KB


License Agreement
Description Version Size
Evaluation products license agreement 1.4 128 KB

Tools and Software

Embedded Software
Evaluation Tool Software
Support & Community

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**
STEVAL-ISV021V1 ActiveCARDIndustrialEcopack2

(**) The Material Declaration forms available on 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.