newrudeman

Ultra-stable three-axis gyroscope based on L3GD20

STEVAL-MKI127V1

Overview

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

Main 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

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-25 21:46:36

LaunchPad+TEA5767=digital radio (debugging stage)
There are always some chores these days. Today is Sunday. After breakfast, I sat in front of the computer and started debugging the program.I have run programs on this system before, but there has alw
Rated current estimation tips
Given the motor power, how to estimate the rated current of the motor? Three-phase 220 motor, kilowatt 3.5 amperes. Three-phase 380 motor, one kilowatt 2 amperes. Three-phase 660 motor, kilowatt 1.2 a
LT8918L: LVDS to 1-Port MIPI signal conversion chip solution introduction
[color=#333333][size=14px]1. Brand: Longxun[/size][/color] [color=#333333][size=14px]2. Model: LT8918L[/size][/color] [color=#333333][size=14px]3. Function: LVDS to 1-Port MIPI[/size][/color] [color=#
How to modify the startup title of VXWORKS
When VXWORKS starts, the HyperTerminal will print the following information: Copyright 1984-1998 Wind River Systems, Inc. CPU: Motorola ADS - PowerPC 860 VxWorks: 5.4.2 BSP version: 1.2/4 Creation dat
vxWorks register read and write problem
I can't write to some registers now (I2C registers can't be written, but others can be written to). Has anyone encountered this problem? I turned off the MMU. The situation is as follows: I typed in t
Can someone please help me figure out what is wrong with this PWM control LED output?
就开关3能用--。其他都出不来module pwm_top( input clk,rst, input sw1,sw2,sw3,sw4,sw5, output pwm);reg [15:0]cnt; reg [5:0]duty; reg [15:0]count; reg clk_div; reg pwm; always@(posedge clk or posedge rst) if(rst)beg

Datasheet More

Circuits More