Related Manuals for WiT BWT901
Summary of Contents for WiT BWT901
- Page 1 USER MANUAL BWT901 Bluetooth 2.0 Inclinometer Sensor BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 1 -...
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Page 2: Contact
Technical Support Contact Info Application ● AGV Truck ● Platform Stability ● Auto Safety System ● 3D Virtual Reality ● Industrial Control ● Robot ● Car Navigation ● UAV ● Truck-mounted Satellite Antenna Equipment BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 2 -... -
Page 3: Table Of Contents
2.4 Configuration ....................- 22 - 2.4.1 Return Content ................- 22 - 2.4.2 Output Rate ..................- 23 - 2.4.3 Baud Rate ..................- 23 - 2.4.4 Data Recording ................- 24 - BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 3 -... - Page 4 5.2 STM32 ......................- 40 - 5.3 Raspberry pi ....................- 40 - 5.4 C# ........................- 40 - 5.5 C++ ......................... - 41 - 5.6 Matlab ......................- 41 - BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 4 -...
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Page 5: Introduction
Its strength lies in the algorithm which can calculate three-axis angle accurately. BWT901 is an CE standard accelerometer. It is employed where the highest measurement accuracy is required. BWT901 offers several advantages over competing sensor: •... -
Page 6: Warning Statement
WITMOTION BLUETOOTH sensor’s baud rate is fixed. For secondary developing project or integration: use WITMOTION with its compiled sample code LED Status Status Remark Flashing Working Flashing Pairing process Blue Keeping still Successful pairing BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 6 -... -
Page 7: Use Instructions With Pc
BWT901 Playlist 2.1.1 Serial Connection Step 1. Connect the sensor with a serial converter PIN Connection: VCC - TX - RX - GND - GND (When connecting with computer, VCC-5V is recommended.) BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 7 -... - Page 8 Step 4. Open the software(Minimu.exe) Data will appear after auto-search finishes Notice: If not successful, please operate manually Choose the com port and baud rate 115200, data will be shown on the software. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 8 -...
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Page 9: Usb-Hid Connection
Step 2. Power on the sensor after red light of HID adapter flashes Step 3. Wait till the sensor's blue LED light keeps on--means pairing succeeded Step 4. Open the software, Minimu.exe Step 5. Data will appear once the auto-search finishes BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 9 -... -
Page 10: Pc's Bluetooth Connection
Step 4. Confirm the “outgoing com port” on “More Bluetooth Options” page Step 5. Open software (Minimu.exe) and choose the correct com port Step 6. Data will appear once the automatic search finishes BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 10 -... -
Page 11: Software Introduction
For manufacturer internal test only Auto-search Auto searching the sensor Port Com port selection Baud Baud rate selection Type Fixed setting as Normal for BWT901 Open Open com port Close Close com port BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 11 -... -
Page 12: Menu Of Configuration
Menu of Configuration Menu of Configuration Button Function Read Config Reading the current configuration Lock Lock the sensor Unlock Unlock the sensor Calibrate Time Calibration time of chip Save Config Save configuration BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 12 -... - Page 13 Gyro Auto Calibrate Auto-calibration of gyroscope Menu of Range Button Function Acceleration Acceleration measurement range Gyro Gyroscope measurement range Band Width Bandwidth range GPS Time Zone GPS positioning of time zone BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 13 -...
- Page 14 D1 Model Not available for Bluetooth sensor series D2 Model Not available for Bluetooth sensor series D3 Model Not available for Bluetooth sensor series Pulse width Not available for Bluetooth sensor series BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 14 -...
- Page 15 Cycle Not available for Bluetooth sensor series BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 15 -...
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Page 16: Calibration
After calibration, the measurement will be accurate. Methods: Step 1. Keep the module horizontally stationary Step 2. Click the accelerometer calibration Step 3. Click the “Start calibration”and wait for 3 seconds Step 4. Click “Complete Calibration” BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 16 -... - Page 17 0, 0,1, the X and Y axis Angle is around 0°. After calibration, the x-y axis Angle is accurate. Note: When putting the module horizontal, there is 1g of gravitational acceleration on the Z-axis. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 17 -...
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Page 18: Magnetic Field Calibration
Sensors should be 20CM away from magnetic and iron and other materials Methods: Step 1. Open the Config menu Step 2. Click the magnetic field calibration button. click the “Start calibration” BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 18 -... - Page 19 Step 3. Slowly rotate the module 360° around X, Y, Z, 3-axis accordingly BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 19 -...
- Page 20 Step 4. After rotation, click “End calibration” Successful result: Most of data dots will be within the ellipse. If not successful, please stay away from the objective that can create magnetic field interference. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 20 -...
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Page 21: Gyroscope Automatic Calibration
Z-axis backs to 0 degree in the module data bar. 2.3.5 Reset Height to 0 Only available for the module built-in barometer like WT901B, HWT901B, WTGAHRS1, WTGAHRS2. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 21 -... -
Page 22: Configuration
Taking BWT901 as an example, the default output of the module is acceleration, angular velocity, angle, and magnetic field. Notice: If choosing the GPS Original, there will be no other data output. -
Page 23: Output Rate
The default baud rate is 115200. 2.4.3 Baud Rate Not available for Bluetooth sensor series. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 23 -... -
Page 24: Data Recording
2.4.4 Data Recording Method are as follows: Step 1: Click “Record” and “Begin” Step 2: Click “Stop” BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 24 -... - Page 25 Windows system’s time. The changes in other data is correct. It is highly recommended that data can be pasted to an Excel file. In this way, all data will be shown in order. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 25 -...
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Page 26: Data Playback
Recorded data playback method: Step 1: Disconnect the sensor Step 2: Click “File” Button and then click “Load” Step 3: Choose the original path of software installation and load the Bin file BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 26 -... - Page 27 Step 4: Click “Run” and the Binary file will be playback When playback, the rate can be editable. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 27 -...
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Page 28: Standby And Wake Up
Step 1: Rotate the module 90 degrees around the X-axis Step 2: Place the sensor 90 degrees vertically Step 3: Click “Vertical” as install directions on “Config” menu BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 28 -... -
Page 29: Bandwidth
1. The higher rate of bandwidth setting will lead to the higher fluctuation in data waveform. Conversely, the lower rate of bandwidth, data will become more fluent. For example: Bandwidth as 20Hz, Output rate as 10Hz. The waveform is very steady. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 29 -... - Page 30 For example, if the bandwidth setting is 20Hz, retrieval rate as 100Hz, there will be 5 repeating data. If you prefer there is no repeating data, it is required to increase the bandwidth more than 100Hz. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 30 -...
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Page 31: 6-Axis/ 9-Axis Algorithm
9-axis algorithm: Z-axis angle is mainly calculated and analyzed based on the magnetic field. Z-axis angle will have few drift. The default algorithm of BWT901 is 9-axis. If there is magnetic field interference around installed environment, it is recommended to switch to 6-axis algorithm to detect the angle. -
Page 32: Use Instructions With Android Phone
2. It is recommended to use method shown in the Chapter 3.3.1 If Bluetooth device cannot be shown on search result, it is recommended to try another method in the Chapter 3.3.2 BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 32 -... -
Page 33: Connection
Step 1. Install the APK file, give permission of Location and Storage Step 2. Open APP and choose “9-axis series” Step 3. Turn on the sensor and search “HC-06”, input password “1234”. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 33 -... - Page 34 Step 4. When pairing is done, the blue LED light of sensor will remain still. After a few seconds, the data will show automatically. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 34 -...
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Page 35: Phone's Bluetooth Pairing
(First pairing the device will be recognize as mac address and will be shown as HC-06 after successful pairing.) Step 4. Click the “MAC address” device and input the password “1234” BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 35 -... - Page 36 Step 6. Click “Scan” and select the paired Bluetooth device “HC-06” (No need to input password) Step 7. The Blue LED light of sensor will keep on. Connection with APP is successful. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 36 -...
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Page 37: Calibration
Step 1. Keep the module horizontally stationary Step 2. Click the “Calibration” menu Step 3. Click the “Acceleration Calibration” and wait for 3 seconds Step 5. Judge the result--confirm if there is 1g on Z-axis acceleration BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 37 -... -
Page 38: Magnetic Field Calibration
Step 4. After rotation, click “Finish” Check the result: The Z-axis angle will have fewer drift than before. Notice: If not successful, please stay away from the objective that can create magnetic field interference. BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 38 -... -
Page 39: Multiple Connection
1. The multiple-connection will require the USB-HID 2.0 adapter. The USB-HID adapter is driver-free design. 2. Each BWT901 Bluetooth 2.0 sensor can only pair with 1 USB-HID adapter. 3. The multiple-connection can reach up to 8pcs. BWT901 | manual v0707 | http://wiki.wit-motion.com/english... -
Page 40: Mcu Connection
Link to sample code instructions demo Notice: There is no sample code provided for Linux or Python system at present. Arduino Download link Arduino UNO3 Demo Link STM32 Download link Raspberry pi Tutorial link DEMO link BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 40 -... -
Page 41: Matlab
DEMO link Matlab Receive Sample Code Dataplot DEMO BWT901 | manual v0707 | http://wiki.wit-motion.com/english - 41 -...
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