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SD740 Tri-Axis Gyroscope Board

SKU: SEN0095

The SD740 Tri-Axis Gyroscope Board is a versatile breakout module integrating a tri-axial micro-machined gyroscope with an ASIC for signal conditioning. It offers configurable filters for gain and bandwidth, zero rate bias adjustment, and a scalable full scale range of ±1024°/s to ±64°/s. With digital signal stability and a refresh rate of less than 100 microseconds, it supports SPI, I2C, and analog interfaces for various applications.

Overhead shot of SD740 Triple Axis Gyro microcontroller module with STM32 chip-DFRobot product sku:SEN0095 image.

Downloadable Resources

  • Docs
  • Tech Specs
    • 1. Example Code for Arduino-I2C Read Gyro Data

    Read tri-axis gyro data from the SD740 module via I2C interface and send the x, y, z values to the serial port. Users can learn how to communicate with I2C devices, read register data, and process sensor outputs.
    2. Example Code for Arduino-Analog Read Gyro Voltage

    Read analog output voltages from the SD740 module's x, y, z axes and display the results on the serial port. Users can learn how to read analog signals, convert ADC values to voltages, and understand analog sensor outputs.
    Reference

    This article delves into the communication protocols of the SD740 module, highlighting three interfaces: I2C with 7-bit addressing, SPI in mode 0 with a maximum speed of 40 MHz, and Analog outputs with a resolution of 10-bit. Each interface's characteristics and operational details provide a comprehensive understanding of the module's capabilities.

    Specification

    Warning: Please only use 3.3v to supply power to the Gyroscope.

    Parameter Details
    Model SD740 Triple Axis Gyroscope
    Power Supply 2.6V to 3.3V
    Current Consumption 5.2mA
    Standby Current <100uA; power off mode available
    Temperature Operating Range -40 degrees to +85 degrees
    Full Scale Dynamics +/-1024 degrees /s (digitally scalable down to +/-64 degrees/s)
    Outputs Ratio metric analog outputs and digital outputs (SPI and I2C)
    Digital Bus Operating Voltage 1.8V to 3.3V
    Calibration Fully calibrated over the whole operating temperature range
    Self Diagnosis Continuously working self diagnosis
    Processing Fully digital processing for rate signals and gyroscope control loops
    Size 21x21x3(mm)

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