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INEMO-M1 Discovery
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The Discovery-M1 helps to discover the INEMO-M1 performance features and to facilitate its evaluation. The INEMO-M1 is the smallest 9-axis system-on-board (SoB) of the iNEMO module family; it integrates multiple ST sensors with a powerful computational core: a 6-axis geomagnetic module, a 3-axis gyroscope and an ARM Cortex™ M3 32-bit MCU.

The Discovery-M1 based on the INEMO-M1, and including a pressure sensor LPS331AP, represents a complete 10-DoF open platform able to provide fast inertial application development using MEMS sensors and the STM32. The pinout of the two connectors gives a complete set of communication interfaces in a very small size, making the Discovery-M1 a flexible solution for effortless orientation estimation embedded applications.

To aid in user development and analysis, the Discovery-M1 demonstration kit includes a PC GUI for sensor output display and a firmware library to quickly support the use of the demonstration board features.

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Data Brief

Key Features

  • Two power supply options: through the USB bus or from one of two external supply voltages, VEXT (from 3.6 to 6 V) or D_VDD (from 2.4 V to 3.3 V)
  • INEMO-M1: 9-axis SoB, 13x13x2 mm size factor
  • LPS331AP: MEMS pressure sensor 260-1260 mbar absolute digital output barometer
  • INEMO-M1 pinout available on two double connectors
  • SWD connector for programming and debugging.
  • Two pushbuttons (reset and user)
  • Two LEDs: user LED, power-on LED
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1750: Discovery-M1 board based on the INEMO-M1 system-on-board
1.2 238 KB

User Manual

Description Version Size
UM1601: STEVAL-MKI121V1: Discovery kit for INEMO-M1
1.0 1,902 KB
UM1639: How to upgrade the firmware of STEVAL-MKI121V1 using DFU
1.1 281 KB
UM1744: STEVAL- MKI121V1 communication protocol
1.1 1,800 KB

Presentations & Training Material


Description Version Size
Discovery M1 Overview
2.0 1,814 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-MKI121V1 gerber files
340 KB

Bill of Materials

Description Version Size
9 KB

Schematic Pack

Description Version Size
STEVAL-MKI121V1 schematics
103 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-INEMO001 Suite for STEVAL-MKI121V1 (INEMO-M1 Discovery) including GUI, firmware and SDK
STSW-STM32080 DfuSe USB device firmware upgrade STMicroelectronics extension: contains the demo GUI, debugging GUI, all sources files and the protocol layer (UM0412)
iNEMOEng_M1LI3 iNEMO engine lite sensor fusion algorithm evaluation source code for iNEMO-M1

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-MKI121V1ActiveINEMO-M1Buy Direct193.38Distributor reported inventory date: 2014-12-18
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE21

(*) 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
(**) 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.
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