Product parameter
of core chip combination:
ITG3205: 3-axis gyroscope (range ± 2000 °/s, sensitivity 14.375 LSB/°/s)
ADXL345: three-axis accelerometer (range ± 16g, resolution 13 bits)
HMC5883L: three axis magnetometer (range ± 8.1 Gauss, resolution 5mG)
working voltage of :3.3V-5.0V DC (compatible with 3.3V/5V logic level)
of interface type: I²C (independent address: ITG3205 = 0x 68,ADXL345 = 0x 53,HMC5883L = 0x1E)
data output:
Gyroscope: XYZ-axis angular velocity (°/s)
Accelerometer: XYZ axis acceleration (g)
Magnetometer: XYZ axis magnetic field strength (μT)
the refresh rate:
Gyroscope: 8kHz internal sampling, I²C output 100Hz
Accelerometer: up to 3.2kHz
power consumption :
Working mode: gyroscope 0.5mA + accelerometer 0.1mA + magnetometer 1.0mA
Standby mode: total current operating temperature :-40°C to +85°C

Product main pin function
VCC: power input positive pole (3.3V-5.0V DC), external 100nF ceramic capacitor + 10μF electrolytic capacitor decoupling required
GND: power supply ground, which must be shared with the main control system at a single point.
SCL :I²C clock line (open drain output), 4.7kΩ pull-up resistor needs to be externally connected to VCC
SDA :I²C data line (open drain output), 4.7kΩ pull-up resistor needs to be externally connected to VCC
INT (ITG3205): Interrupt output pin (active low), triggered when data is ready
DRDY (HMC5883L): Data Ready Interrupt Pin (Active Low)
ALT ADDRESS (ADXL345): Address select pin (floating = 0x 53, connected to VCC = 0x1D)