Ultra stable 3-axis gyro based on the L3GD20

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  • The STEVAL-MKI127V1 demonstration board represents an ultra stable 3-axis gyroscope application based on MEMS technology, offering high quality and performance at a low price. Utilizing ST’s L3GD20 low-power 3-axis angular rate sensor and ARM Cortex-M3 processor, it offers users an unprecedented level of fine tuning/programming to meet the needs of professionals and hobbyists alike. It is ideal for any number of UAV, conventional aircraft, platform stabilization (such as camera mounts), or general robotics projects, as well as providing optimal performance for competitive RC airplane and recreational flying.

    The STEVAL-MKI127V1 was designed by Bluelight Technologies Co. Ltd.
    For the complete user manual and PC tools (intuitive, easy-to-use software for detailed user programming and graphical real-time data monitoring), download from:
    http://www.bluelight-tech.com/BL-3GMod.htm

    Key Features

    • USB / PC connection for setup and upgrade (USB and/or UART connection)
    • Ultra stable over temperature and time
    • Operational temperature: -30 °C to +85 °C
    • ST L3GD20 MEMS rate sensor
    • ARM Cortex-M3 processor for control and I/O
    • UART connection for system developers
    • Filters:
      • Low pass
      • High pass (programmable)
      • Kalman (programmable)
      • Rolling average (programmable)
    • Control algorithm:
      • PID (proportional, integrative, differential)
      • All gain parameters programmable (+3 external pots)
    • Input Tx/Rx matching:
      • Matching to any RC transmitter
      • Allows a low cost system with high end features
    • Curves (input stick curves):
      • Many standard and also x4 use programmable
      • Good for aircraft control at low cost
    • Mixing functions / trim:
      • Pitch into roll for “Wing” aircraft
      • Power in and out (for curve transformation)
      • Trim and range adjustments for fine tuning
    • 3 PWM inputs and 6 outputs for control signals:
      • Pitch
      • Roll
      • Yaw
    • 1 x UART for 16-bit raw X, Y, Z rate and 8-bit temperature digital data out and PC connection
    • Highly programmable for multiple applications
    • Variable input voltage (20 V to 5 V, or down to 3.3 V)
    • LED displays to show gyro operation
    • Factory calibrated
    • Size, power and weight
      • 35 x 35 mm PCB
      • 45 mA during normal operation
      • Weight: 8.5 g
    • RoHS compliant

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Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
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STEVAL-MKI127V1 L3GD20
NRND
97 1 EAR99 - Check Availability

Distributor availability ofSTEVAL-MKI127V1

Distributor Name
Region Stock Min. Order Third party link
Newark Element14 AMERICA 2 0 Order Now

Distributor reported inventory date: 2019-09-18

Distributor Name

Newark Element14

Stock

2

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2019-09-18

STEVAL-MKI127V1

Core Product

L3GD20

Marketing Status

NRND

Unit Price (US$)

97.0*

Distributor availability ofSTEVAL-MKI127V1

Distributor Name
Region Stock Min. Order Third party link
Newark Element14 AMERICA 2 0 Order Now

Distributor reported inventory date: 2019-09-18

Distributor Name

Newark Element14

Stock

2

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2019-09-18

Unit Price (US$)

97

Quantity

1

ECCN (US)

EAR99

Country of Origin

-

(*) 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

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Technical Documentation

    • Description Version Size Action
      DB1769
      Ultra stable 3-axis gyro based on L3GD20
      1.0
      221.43 KB
      PDF
      DB1769

      Ultra stable 3-axis gyro based on L3GD20

Hardware Resources

    • Description Version Size Action
      STEVAL-MKI127V1 BOM 1.0
      55 KB
      PDF

      STEVAL-MKI127V1 BOM

    • Description Version Size Action
      STEVAL-MKI127V1 gerber files 1.0
      142.39 KB
      ZIP

      STEVAL-MKI127V1 gerber files

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-MKI127V1
NRND
CARD Industrial Ecopack2 -

STEVAL-MKI127V1

Package:

CARD

Material Declaration**:

Marketing Status

NRND

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.