SPECIFICATIONS

1. Product introduction：

M with PU3250 accelerometer magnetometer module is based on MPU9250 nine-axis motion processing chip integrated with peripheral DO, I2C pull-up resistance module, expanded to double rows of 2.54mm spacing gold-plated pinholes and stamp holes, easy for users to weld and expand, can also be directly affixed to users' products, the module adopts I2c communication, Support wide operating voltage. Use braided packing.

The MPU9250 chip is integrated with 3-axis gyroscope, 3-axis acceleration and 3-axis magnetometer sensors. Three 16-bit ADCs are used to convert the measured analog quantity into the output digital quantity for the butterfly meter, accelerometer and magnetometer respectively. To accurately track fast and slow motion, the sensor has a user controlled measurement range of ±250, ±500, ±1000, ±2000°/ second (dps) for the gyroscope, ±2, ±4, ±8, ±16g for the magnetometer, ±4800uT.

The MPU9250 chip also has a second IIC interface, which can be used to connect to the external magnetic sensor. Using the built-in digital motion processor < DMP > hardware acceleration engine, through the main IIc interface, the application side can output the complete 12-axis fusion calculation data. With DMg, we can use the official motion processing driver library, very convenient to achieve attitude calculation, reduce the load of motion processing operation on the operating system, and greatly reduce the difficulty of development.

2. Main parameter：

• Working voltage :3.ov~5.5v

• IIC communication interface, support the maximum 400Khz communication rate

• acceleration measurement range :±21 soil 4/ 8/ soil 16g

• gyro measuring range :±250/ 500f 1000s 2000°{s

• magnetometer measuring range :±4800uT

• Resolution: Acceleration :16384LSB/g(Max) Gyroscope :131LSB/(°/s)(Maxz), magnetometer :14 bit (0.6HTLSB) or 16 bit (15PTASa)

• output rate: acceleration :1Khz (Max) Gyroscope :8Khz (Max)

• Attitude solution output rate 200Hz (Max)

• the temperature sensor measurement range :-40℃ 85℃, accuracy ±1℃

3. Foot position description:

• VCC: Power input

• GND: electrically

• SCL: Working 2C clock, inner 10K pull-up

• SDA: Work 2c data, built-in 10K pull-up

• INT: Interrupt output pin

• AUX_CL: As the host I2C clock interface, connected to the sCL of the external sensor

• AUX_DA: As the host I2c data interface, connected to the SDA of the external sensor

• 3V3: 3.3V voltage output

4. Application field:

(1) Handheld instrument

(2) Robot navigation and positioning

(3) Navigation model system (4) balancing vehicle

(5) Antenna pitch positioning

5. Chip pin and coordinate direction:

6. Function introduction：

This module reads data through I2C interface. The I2c device address is b110100K and the length is 7 bits. The last bit X of the 7-bit address is determined by the high and low level of the pin Ano pin. The default ADO dropdown grounding address is b1101000. If ADo is connected to 3.3v and configured as high level, then the rac device address is b1101001 and the length is 7 bits. The Ao connection 3.3v setting can be set by short welding spot on the module.

Through the data fusion and calculation of M-equipped U9250 gyroscope, accelerometer and magnetometer, the dip angles of x, y and z axes of objects (such as quadcopter and balancing car) can be obtained: Pitch, roll Angle Rol1, Yaw. Nine data of MPU9250 < AD value of triaxial acceleration, AD value of triaxial angular velocity and sD value of triaxial magnetometer > can be read through T2. After attitude fusion, Pitch, Ro11 and Yaw angles can be obtained.

As the direction reference of the measured value, the sensor coordinate direction is defined as shown in the figure above, which belongs to the right-handed coordinate system < right thumb points to the positive direction of x axis, index finger points to the positive direction of y axis, and middle finger can point to the positive direction of z axis ".

Note: In order to obtain more stable output, it is necessary to calibrate data < zero offset > and filter < common filters include complementary filter, Kalman filter, etc.).

7. Application schematic diagram：

8.Product size：