OYMotion Technologies gForce OYM-GF-P001 User manual

gForce EMG Armband
User Manual
OYMotion Technologies, Co. Ltd
Addr: Floor 3, Building 1, 400 Fang Chun Road,
Shanghai, China
Phone: [phone]
Email: [email protected]
Version 1.0

All Rights Reserved by OYMotion Technologies, Co. Ltd
Contents
1. Trademarks & Patents...............................................................................................................................................1
2. About gForceTM EMG Armband................................................................................................................................ 1
3. Applicable product model.........................................................................................................................................1
4. Product model description....................................................................................................................................... 1
5. Product structure and dimensions........................................................................................................................... 1
5.1. gForce EMG Armband’s hardware composition........................................................................................... 1
5.2. gForce EMG Armband’s size and weight....................................................................................................... 2
5.3. gForce Dongle bluetooth Data Transceiver................................................................................................... 2
6. System description and instructions.........................................................................................................................2
6.1. gForce support platform................................................................................................................................2
6.2. gForce OTrain gesture training platform....................................................................................................... 3
6.3. gForce and Arduino development board (additional purchase required)....................................................4
6.4. Key points of using gForce Pro Armband...................................................................................................... 4
7. gForce technical parameters.....................................................................................................................................4
8. Packing list.................................................................................................................................................................5
8.1. gForce Pro EMG armband：1pcs.................................................................................................................. 5
8.2. gForce Dongle：1pcs.....................................................................................................................................5
8.3. User manual：1pcs....................................................................................................................................... 5
9. Contact information..................................................................................................................................................5

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1
1. Trademarks & Patents
gForceTM is a registered trademark of OYmotion Technology Co., Ltd. (hereinafter referred to as
OYmotion). gForceTM EMG Armband is registered and produced by OYmotion Technology Co., Ltd.
with the patent owned by the company. Without the written permission of OYmotion Technology
Co., Ltd., no other group or individual,may reproduce and disseminate any part of this document in
any form or by any means (including electronic, physical, etc.) for any purpose.
2. About gForceTM EMG Armband
gForceTM EMG Armband has built-in 8-Channel high sensitive EMG sensors, 9-axis motion sensor,
Buetooth BLE4.2 and other modules. It allows users to directly access the original data of EMG and
motion sensors, and supports otrain gesture training platform, and can add 8 kinds of user-defined
gesture movement analysis.
3. Applicable product model
OYM-GF-P001 , OYM-GF-B001 , OYM-GF-R001 ; OYM-GFD-001
4. Product model description
Model
Name
Description
OYM-GF-P001
gForce Rehab Training Armband
Green shell, professional version,
can transmit original EMG data
OYM-GF-B001
gForce Rehab Training Armband
Black shell, basic version, unable to
transmit original EMG data
OYM-GF-R001
gForce Rehab Training Armband
Orange shell, encrypted version, can
transmit encrypted EMG data
OYM-GFD-001
gForce Dongle
Bluetooth data transceiver, used
with gforce EMG Armband
5. Product structure and dimensions
5.1. gForce EMG Armband’s hardware composition

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5.2. gForce EMG Armband’s size and weight
Measurement Index Measurement Value
Internal diameter 65-90 mm
Height 40 mm
Thickness 10 mm
Weight about 80 g
5.3. gForce Dongle
Gforce Dongle is a USB Bluetooth data transceiver used with gforce EMG Armband.
Measurement Index
Measurement Value
Length
35 mm
Width
20 mm
Thickness
8 mm
Weight
About 3.5 g
6. System description and instructions
6.1. gForce support platform

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Support Platform
Notes
Win 7/ win8 / win10
SDK for Windows
Unity3D SDK
Need to be used with USB2BLE gForce
Dongle
Android
With original Bluetooth BLE 4.0 and above
Android Unity3D SDK
MCU
SDK for Arduino/STM32
Arduino、STM32
Need to be used with UART2BLE
gForce-Joint (Contact the manufacturer
for purchase additionally)
6.2. gForce OTrain gesture training platform
6.2.1. Otrain gesture training platform is based on hybrid development concept and adopts C / S
architecture. The internal tools of the platform include web server, data collection service,
machine learning engine and interface display service.
6.2.2. The personal gesture training, modeling and uploading of gforce EMG Armband can be
completed through the guidance of OTrain platform to achieve personalized gesture
customization. gForce can work offline after gesture training.

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6.3. gForce and Arduino development board (additional purchase required)
gForce Joint acts as a Bluetooth Center and can automatically establish a connection with
gForce Pro Armband through Bluetooth BLE for data transmission. gForce Pro sends the
recognized gesture index and quaternion values to gForce Joint. gForce Joint forwards the received
gesture index and quaternion values to the next level through its COM port (TX). Arduino receives
gesture index and quaternion values from gForce Joint through its COM port (Rx) .
6.4. Key points of using gForce Pro Armband
6.4.1. When using gForce Armband, it should be close to the skin and worn in the middle of
forearm.
6.4.2. In the power OFF state, press the switch button gently, the armband starts, the green
indicator light is on, and it flashes slowly; in the power ON state, press the switch button
lightly, and set the gyroscope as the current direction.
6.4.3. In the power ON state, long press the switch button for five seconds to release, the
armband is closed, and the green indicator light is off.
6.4.4. When charging the armband, the red charging indicator light is on; when charging is
completed, the indicator light is off.
6.4.5. When connecting the armband to OTrain, try to be as close to Dongle as possible. When the
green indicator light flashes, it indicates that the connection is successful.
6.4.6. In the process of training gestures in OTrain platform, when switching from one gesture to
another, the green light is always on, indicating that the new gesture training mode has
been entered, and the training can be started.
6.4.7. When making gestures, gestures need to be performed when the user's arm muscles are
relaxed.
7. gForce technical parameters
Main indicators
Specific parameters
Communication mode
Low power Bluetooth BLE4.2 standard
Communication distance
10m

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Power waste
0.1W
Battery
200mAh
Power input
USB 5V
Gesture classification
8 kinds
Gesture definition
Support customization
Original EMG data
Support real-time output of original EMG data
Sampling rate: 1000Hz（max）
ADC：8bit
Channel: 8 channels
Gain: 1000 times
Filtering: 20 ~ 500Hz hardware band-pass
filtering circuit
Quaternion / Euler angle /
Rotation matrix
Support quaternion / Euler angle / rotation
matrix output
Sampling rate: 50Hz
Software support
SDK For Windows
SDK For Android
SDK For Arduinio/STM32
Unity3D /C# SDK for Windows
OTrain EMG gesture training App
Open source oym8chwave EMG waveform
display and data acquisition app + source
gForce App for Android
8. Packing list
8.1. gForce Pro EMG armband：1pcs
8.2. gForce Dongle：1pcs
8.3. User manual：1pcs
9. Contact information
Company name: OYMotion Technologies, Co. Ltd
Address: Floor 3, Building 1, 400 Fang Chun Road, Shanghai, China
Website: www.oymotion.com
Phone: + 86-21-63210200
Email: [email protected]
Post code: 200433

FCC Statement
Any Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause
undesired operation.
RF warning for Portable device:
The device has been evaluated to meet general RF exposure requirment. The device can
be used in portable exposure condition without restriction