STEVAL-MKI127V1 Ultra stable 3-axis gyro based on the L3GD20 Data brief 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) Highly programmable for multiple applications Rolling average (programmable) Variable input voltage (20 V to 5 V, or down to Control algorithm: 3.3 V) PID (proportional, integrative, differential) LED displays to show gyro operation All gain parameters programmable (+3 Factory calibrated external pots) Size, power and weight Input Tx/Rx matching: 35 x 35 mm PCB Matching to any RC transmitter 45 mA during normal operation Allows a low cost system with high end Weight: 8.5 g features RoHS compliant Curves (input stick curves): Many standard and also x4 use Application programmable Good for aircraft control at low cost RC (radio controlled) airplane stabilization Mixing functions / trim: Multi-copter / UAV stabilization Pitch into roll for Wing aircraft General robotics 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 October 2012 Doc ID 023766 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4Description STEVAL-MKI127V1 1 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 STs 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: