STEVAL-MKI127V1

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Ultra stable 3-axis gyro based on the L3GD20

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Overview

Product overview

Description

Description

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

  • All 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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The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.Marketing description of the package type.Compliancy of the device with industry requirement domains (IRD)The RoHS status of a product:
ECOPACK 1: Initial grade to identify European RoHS compliant products.
ECOPACK 2: New grade to identify brominated chlorinated and antimony oxide flame retardant free products.
ECOPACK 3: Halogen free RoHS exemptions free products.
(*): ECOPACK 2 version available upon request.
(**): Some versions still existing in ECOPACK 1 or not compliant.Compliancy with WEEE Directive (2012/19/EU)The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.Budgetary PriceMain country of assembly or fabrication of the product.ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes. ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes.