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By WitMotion

[HWT901B] MPU9250 9-axis Gyro+Angle+Digital Compass+Pa+Altitude, Mag Compensation AHRS IMU

$62.00 - $75.00
Shipping calculated at checkout.
Style: IP68 HWT901B-TTL no air pressure data output
$62.00
$74.00 $62.00
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[HWT901B] MPU9250 9-axis Gyro+Angle+Digital Compass+Pa+Altitude, Mag Compensation AHRS IMU - WitMotion ShenZhen CO.,LTD
$62.00
$74.00 $62.00

Warm Reminder:

To help customers choose accelerometers with air pressure, we upload several SKU for buying guides to indicate the related sensor series with various parameters. Please double-check the SKU pictures while you evaluate the sensor and place the order.

HWT901B-TTL/232/485

Inclinometer with air pressure

【Comprehensive features】HWT901B is not only an accelerometer with air pressure, but also integrates a gyroscope and a geomagnetic sensor with recovery function.

【Low noise】The use of advanced digital filtering technology can effectively reduce measurement noise and improve measurement accuracy.

【High precision】The accelerometer with air pressure integrates an attitude solver and a dynamic Kalman filter algorithm. The attitude measurement accuracy is 0.1° statically and the stability is very high.

【Easy to link】Supports serial port, allowing users to choose the best connection method. The serial port rate is adjustable from 4800bps to 230400bps.

【Multiple versions】Aluminum housing waterproof version is optional, IP67 waterproof, suitable for various harsh environments.

【Data output content】The accelerometer with air pressure can output time, 3-axis acceleration, 3-axis angular velocity, 3-axis angle, 3-axis magnetic field.

【Output Optional】 Maximum data output rate of 200Hz. Output content can be selected arbitrarily, and the output rate is adjustable from 0.2 to 200Hz.

 

Product HWT901B
Operating Voltage TTL Serial, RS-232, RS-485: 9-36V; CAN Bus: 5-24V
Current <25mA
Communication TTL Serial, RS-232, RS-485, CAN Bus
Output content 3-Axis (Acceleration, angular velocity, Angle, Magnetic field)
Range Acceleration: ±16g, Gyroscope: ±2000°/s, Angle: X, Z ±180°, Y ±90°
Accuracy X, Y axis: 0.1°, Z axis: 1° (no magnetic field interference and after calibration)
Output Rate 0.2-200Hz (default 10Hz, RS-485 Polling Mode)
Baud Rate TTL/RS-232/RS-485: 4800-230400, CAN Bus: 3K-1M
Resolution Acceleration: 0.5mg/LSB (2048LSB/g), angular velocity: 0.061(°/s)/LSB, Mag field: 13nT/LSB, Angle: 0.0055°/LSB
Dimensions 55*36.8*24mm
Weight 90-100g
Operating Temperature -40°C ~ +80°C

Technical Documentation

Click "View" to open the document in WitMotion Drive.

Universal Software & Drivers
View
FAQ-HWT901B
View
HWT901B RS232 Datasheet
View
HWT901B RS232 Manual
View
HWT901B-RS232 REAM ME
View
HWT901B RS485 Datasheet
View
HWT901B RS485 Manual
View
HWT901B-RS485 REAM ME
View
HWT901B TTL Datasheet
View
HWT901B TTL Manual
View
HWT901B-TTL REAM ME
View
HWT901B-CAN Datasheet
View
HWT901B-CAN Manual
View
HWT901B-CAN REAM ME
View
The PC software can receive data, but the configuration interface is offline.

When the configuration interface is offline, configuration changes cannot be applied. Please check the following:

a. The RX pin on the TTL Serial interface may have poor contact, causing command transmission failure. Check the wiring and solder joints.

b. The current Baud Rate is too low or the data rate is too fast. Click "Re-read Configuration" on the configuration page.

c. The selected device model in the PC software does not match the actual device. Choose the correct model to read the configuration.

d. The PC software version may be outdated. Click "Update PC software" under the Help section.

e. The serial port is connected to an external microcontroller. Erase the microcontroller program to restore normal serial communication.

What are Bandwidth, Baud Rate, and Output Rate?

Baud Rate: It can be understood as the number of symbols transmitted (or received) by a device per second. It is a measure of the symbol transmission rate. 1 baud means 1 symbol is transmitted per second (different modulation methods can carry multiple bits of information on one symbol). 1 bit per second means 1 bit is transmitted per second. The unit "baud" already represents modulations per second, so "baud per second" is a common misconception.

Bandwidth: Intuitively, the smaller the Bandwidth setting, the smoother the measured data curve, but the signal response will lag more, and signal changes above the bandwidth cannot be measured. Conversely, the larger the Bandwidth setting, the more noise and glitches in the data curve, but it can respond faster to signal changes.

Output Rate: Simply put, it determines how fast the data updates. The time interval of the data recorded by the PC software is equal to 1 divided by the Output Rate.

What is the Euler Angle rotation sequence, and what is the corresponding Quaternion order?

The Euler Angle rotation sequence is ZYX (intrinsic rotation). The Quaternion order q0, q1, q2, q3 corresponds to w, x, y, z.