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  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

  • WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU

● (1) High precision Pitch Roll Yaw (X Y Z axis) Acceleration + Angular Velocity + Angle + Magnetic Field output

● (2) The module integrated high precision gyro accelerometer and geomagnetic field sensor

● (3) Wireless Bluetooth serial port communication,Bluetooth connection range≤10m, embedded in-built battery, also can connect with cable, professional for second-development

● (4) BUY WITH CONFIDENCE: R&D by WitMotion Team( 6-year Professional Attitude Measuring Solution Provider). Providing PC software, mobile phone APP, driver, manual, datasheet etc. Tutorial Link: https://github.com/WITMOTION/BWT901CL

● (5) What you get: 1 x WitMotion BWT901CL Bluetooth inclinometer + 1 x charging line +1 x instructions card, Lifetime friendly customer service (Please kindly contact us if you need any help)

Specification

WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer   Acceleration   Gyro   Mag on PC/Android/MCU

Technical Specifications:

BWT901CL’s scientific name is the AHRS IMU sensor. A sensor measures 3-axis angle, angular velocity, acceleration, magnetic field. Its strength lies in the algorithm which can calculate the three-axis angle accurately. The robust housing and the small outline makes it perfectly suitable for industrial retrofit application such as motion capturing, engineering machine monitoring, etc.

Persued for best data accuracy and stability: WTMOTION patented zero-bias automatic detection calibration algorithm and R&D dynamic fusion algorithm outperforms traditional accelerometer sensor.

Current: <40mA

Working Temperature: -40℃ ~ +85℃

Battery life: about 4 hours

Data output frequency:0.2-200Hz

Interface: Type-C, Bluetooth 2.0

Baud Rate: 115200 (default, can not be changed)

Voltage: 3.3-5V, built-in rechargeable battery (260mAh capacity, 3.7V)

Output Content: 3-axis Acceleration+Angle+Angular Velocity+Magnetic Field+Quaternion

Range: Acceleration (±16g), Gyroscope (±2000°/s), Magnet Field (±4900µT), Angle (X, Z-axis: ±180°, Y ±90°)

Resolution: Acceleration (0.005g), Gyroscope (0.61°/s), Magnet Field (16 bits)

Angle Accuracy(after calibrated): X, Y-axis: 0.05° (Static) , X, Y-axis: 0.1° (Dynamic)

Note: Z-axis angle will be affected by magnetic field. It is required to calibrate and keep the sensor at least 20cm away from the stuff like metal that may create magnetic field interference.

Hardware Analysis (In-built BWT901)

Hardware Analysis (In-built BWT901)

● In-built HC-06 Bluetooth chip: coverage range within 10 meters (without obstacles like walls)
● Built-in Cortex-M0 core processor which can operate reaching 48MHZ, faster speed in the data processing
● Embedded highly-integrated MEMS accelerometer and gyroscope sensor, more stable and reliable in attitude measurement

Plastic Casing

Plastic Casing

● Net Weight: 20g
● Size: 51.3mm x36mm X15mm/ 2.02" x 1.41" x 0.59"
● Two Wings design at the edge, better for installation
● User Friendly: LED lights Indicator, standby (blue flashes), pairing( blue light lits on), Charging( red light), fully charged( red disappear)

WITMOTION Alrogithm Advantages

WITMOTION Alrogithm Advantages

WITMOTION products are derived from the aerospace Satellite Attitude Determination Algorithm.
Built-in core algorithm:
● R&D Dynamic Fusion Algorithm
● Kalman filtering (program filter)
● Digital filtering
● State estimation algorithm
No need to study the complicated protocol of MPU6050/ 9250 to get the attitude angle.

 Multiple-Connection

Multiple-Connection

● BWT901CL supports multiple-connection with 1 Windows computer at the same time.
● There is a software for multi-connection inside the tutorial.
Notice:
1. The multiple-connection is required to buy the tool, USB-HID adapter from Witmotion store. (search ASIN: B07PWZ3H1N)
2. Each BWT901CL can only pair with 1 USB-HID adapter.

Our Promise

Our Promise

● 30 days return refund policy for any quality issue or unsatisfied order
● Quality secured, 100% inspected & tested at factory before shipping
● Remote diagnostics and lifetime technical support by Witmotion engineering team

Certification

Certification

● BWT901CL is CE certified, meets EU standards for health, safety, and environmental protection
● WitMotion Shenzhen Co.,Ltd is in conformity with Quality Management System Standard: GB/T19001-2016 idt ISO9001:2015.

Free Tutorial

Free Tutorial

● Manual with detailed instructions
● Datasheet with complete communication protocol for developing
● App for Android phone (search WITMOTION on Play Store)
● Two PC software (single-connection & multi-connection )
● Instruction demo video (search WITMOTION on Youtube)
● CH340 serial Drivers

Packing List

Packing List

● 1x BWT901CL Bluetooth 2.0 inclinometer
● 1* Type-C charging cable (25cm)
● 1x Instruction card printed with QR code of document center

PC software for Windows

Free & Genuinely Useful Software

Compared with traditional sensor’s simplied serial software, WITMOTION software offers several advantages over competing sensor:
● configurations setting
● dashboard, 3D DEMO, data curve & chart display in real-time
● data record and playback, raw data reviewing, and more
Notice: There is no software for the Linux, Python, or Mac system at present. Witmotion software is provided as free, compatible with the Windows system only, including Win 10, 8, 7, XP.

PC software for Windows

PC software for Windows

3D Display

3D Display

Data Curve Display

Data Curve Display

Configuration

Configuration

Android APP

Android App (Single-connection)

BWT901CL supports Bluetooth connection with Android smartphones.
Easy connection, simply chooses the module (9-axis Series), pair with the device, and start using.
Search WitMotion on Google Play Store and download it.

Android APP

Android APP

Config Menu

Config Menu

Real-time Data Viewing

Real-time Data Viewing

Recorded Data

Recorded Data

WitMotion Bluetooth 2.0 Mult-Connect BWT901CL 9 Axis IMU Sensor Angle Inclinometer + Acceleration + Gyro + Mag on PC/Android/MCU


About WITMOTION

Established in 2014, WitMotion Shenzhen Co.,Ltd aims to become a global leader in attitude sensor, AHRS IMU. Foud out more here in our Witmotion Brand Store on Amazon.

The company is dedicated to make attitude measurement and tilt angle sensing solutions more accessible and easier for engineers around the world. Widely used every day by customers in over 50 countries for energy and electric power, tower control, Monitoring, engineering machinery, medical, academic, integrated system, more developing projects.


WITMOTION' s  R&D Dept.

● 20+professional engineer industry's top R&D team, and has a long-term collaboration with the Beihang University PhD team.

● WitMotion R&D protocol and Dynamic Fusion Algorithm

● over 50+ patents and software program


Research and Development Facilities:

● World's top-level of triaxial nonmagnetic turntable: All finished items will be calibrated through the turntable, ensuring the X Y Z angle's accuracy.

● High& low temperature test chamber, making sure that the sensor can actually work well under -40℃ ~ +85℃ environment

● Vector Network Analyzers(VNA): Bluetooth antenna impedance matching

● 6 degrees of freedom vibration test bench: sensor's high performance and stability secured under vibration and dynamic environment


Premium Components & QC System: All components are selected and certified under a strict quality control system from the procurement, manufacturing process to assembly, inspection.


Automatic Production&Assemble line of Factory:

Automatic Solder Paste Printing, Imported Placement Machine, Multi-temperature Reflow Soldering, Fully Automatic Inspection


WT901BLECL InclinometerWT901BLECLBWT901CL AccelerometerBWT901CLBWT61CL Tilt SensorBWT61CLWT901 Digital CompassWT901Military-grade HWT905 Magnetometer HWT905-485WTGAHRS2 GPS IMU WTGAHRS2
InterfaceBLE 5.0, Type-CBluetooth 2.0, Type-CBluetooth 2.0, Type-CTTLRS485 Modbus RTUTTL
CompatibilityAndroid phone, Windows PCAndroid phone, Windows PCAndroid phone, Windows PCWindows PC, Android phone, MCU Arduino, Raspberry pi, etcWindows PC, PLC system, MCU Arduino, Raspberry pi, etc.Windows PC, Android phone, MCU Arduino, Raspberry pi, etc
Input Voltage3.3-5V, in-built battery3.3-5V, in-built battery3.3-5V, in-built battery3.3-5V9-36V3.3-5V
3-Axis Acceleration
3-Axis Angular velocity (Gyroscope)
3-Axis Angle
3-Axis Magnetic Field
Output Frequency0.2HZ-50HZ0.2HZ--200HZ0.2HZ--100HZ0.2HZ--200HZ0.2HZ--200HZ0.2HZ--200HZ
HousingPlastic casePlastic casePlastic case
Aluminum case, IP67 waterproofPlastic case
Main FeaturesValue for money, Bluetooth range<50 meters, multiple-connection up to 4 units, 10 hours battery lifeBluetooth range<10 meters, multiple-connection up to 8 units, 4 hours battery lifeBluetooth range<10 meters, multiple-connection up to 8 units, 4 hours battery life9-axis High Accuracy sensor, Kalman FilteringMilitary-Grade Accuracy, RM3100 magnetometer& SCA3300 temp compensationChinese Beidou navigation system+ GPS, High-stability IMU sensor

Video

Instruction Demo

BWT901CL DEMO


BWT901CL Multi-connection Instructions DEMO


BWT901CL Bluetooth Inclinometer Use Instructions with Android Smartphone


Reviews

  • ServosSim

    Dec. 22, 2020

    So it is a bit of a pain in the butt... stuff to complain about:
    1. Make the cable so that you can transmit via USB... it is 2 whole wires. I would gladly pay $2 extra dollars for the extra wires.
    2. Make sure that your solder connections between the bluetooth board and the actual gyro board are good... mine needed a bump
    3. For pity sake, get someone that actually speaks English to write your manual and include the documentation for the bluetooth and where the led light are located...
    That being said...
    1. Once I took it apart and got the blue light to come on for the bluetooth, Windows 10 found it flawlessly. Found it even after I removed power and replugged it back in.
    2. Adding a $1 AA battery pack to the gyro makes it cable free which is most excellent. The AA pack that holds 3 battery powers the gyro beautifully.
    3. The software is excellent except for the fact that once you start the record, there isn't a STOP button anywhere to be found... it ran all night and saved the data... oh my!

    To all the people that gave this a 1 star due to the fact that you cannot ship via air with a battery installed, get a battery pack and solder it into place. I managed... took all of 3 seconds.

    So the part numbers that you need for research:
    BWT901CL - which is what you purchased which includes:
    HC-06 - this is the part number for the bluetooth module. If you ask google for the data sheet, it will find it.
    JY901 - this is the actual gyro board

    The switch on the side does nothing... when the unit is plugged into USB power there should be a red light and a blue light above the switch. If the blue never lights off, the solder on pins 12 and 13 need a touch up... you need a very small (tiny) solder tip on your iron to fix it.

    The software is on the wit-motion.com web site. You will need chrome and the google translate to read it and find the downloads... you need the software for the JY901... and not for the actual part number.

    I hope that this helps everyone who purchases one of these. Get over the battery problem guys... this girl that has used gyros for aerospace that cost thousands of dollar and are not bluetooth, this one is excellent for the application that we are using it for, gets rid of a ton of cabling and comes with its own data collection software with software source samples.

    Have a wonderful day!

  • kes

    Dec. 22, 2020

    Mine has a battery built in, the usb cable that comes with it can be used to charge the battery. I removed one star because the PC application is not professional, needs some work. Overall, it does work just fine and has a battery built in just needs charging. The Chinese text on the side of the box is unreadable by me but is the on/off switch.

  • Cliente de Amazon

    Dec. 22, 2020

    It worked with the test software of Witmotion on first try, great attention from Kyle from support team, unfortunatly I am not experienced enough to link the device to a head tracker software, which was my first purpose, but nothing to do with the quality nor performance of the device, only my lack of knowledge. I would recommend WitMotion products , great price and awesome customers' support.

  • David M.

    Dec. 22, 2020

    The product works wonderful and appears to be great for the intended purpose, but i am trying to repurpose it to be used as a vibration meter. It appears to have all the functions and capability i need. Best of all, the company is quick to respond to any help requests and very supportive.

  • Jerry

    Dec. 22, 2020

    Quite a remarkable device. I used it to measure the vibrational motions of a camera mount in church. Setup & software was difficult, but with help from Kyle in China, I got it working.

  • Amazon Customer

    Dec. 22, 2020

    Value for the price is difficult to beat. They have software to interface with that's useful enough. The email support is responsive enough (replies in 1 day). Things to improve would be the software side but they provide code for you to customize your own, if you're into that.

  • Pacific Palisades Guy

    Dec. 22, 2020

    Works best with PC.  Getting it to work with a Raspberry Pi is challenging.