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Brainwave starter Kit- Brain computer interface for Educational Engineering Projects
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Brain Wave Starter Kit
BCI-Brain Computer Interface
Applications Using BCI
• Produce a two dimensional Electroencephalogram (EEG) controller for widespread application– Mechanical arm– Hands free light for Dentist– Wheel Chair
Adapted from www.toysrus.com Adapted from www.fotosearch.com/bthumb
http://blogs.static.mentalfloss.com
Project Overview
http://www.ipmc.cnrs.fr www2.latech.edu
Measure Brain Activity (EEG)
Translate into signal usable by a device (wheelchair, robotic arm, etc)
DATA ACQUISITON
ELECTRODE PLACEMENT
Letter for regionF - Frontal LobeT - Temporal LobeC - CenterO - Occipital Lobe
Number for exact positionOdd numbers - leftEven numbers - right
ELECTRODE PLACEMENT FOR 10-20 SYSTEM [spaced apart 10-20%]
BRAIN WAVESType Frequency Location Use
Delta <4 Hz everywhere occur during sleep, coma
Theta 4-7 Hz temporal and parietal
correlated with emotional stress(frustration & disappointment)
Alpha 8-12 Hz occipital and parietal reduce amplitude with sensory stimulation or mental imagery
Beta 12-36 Hz parietal and frontal can increase amplitude during intense mental activity
Mu 9-11 Hz frontal (motor cortex)
diminishes with movement or intention of movement
Lambda sharp, jagged
occipital correlated with visual attention
MINDWAVE MOBILE
BRAIN SENSOR
EAR CLIP
BATTERY
TGAM MODULE
HEADSET PLACEMENT
FEATURES• Single Sensor on FP1 • Can detect multiple mental states
simultaneously• Reference electrode on Ear clip to remove
ambient noises• IP involves noise cancellation and signal
amplification• Provides EMG feature for Eye Blink detection
SPECIFICATIONS
• Bluetooth ™ Wireless communication• Passive Dry Sensor EEG• Single AAA battery • 10 Hours Run Time
eSense Brainwave Patterns: • Attention• Meditation• Eye Blink• Frequency Bands: 0.5 to 50Hz
THINKGEAR
•TGAM MODULE offers e-Sense technology•Outputs Attention, Meditation and Physical eye blinks from raw EEG data•2.79cm x 1.52cm x 0.25cm, weighs 130mg •Communicates through UART interface at baudrate 1200, 9600 or 57600
SUPPORTED PLATFORMS
MIND-BOT
SPECIFICATIONS:• Micro Controller : 8051• ZIGBEE MODULE-Frequency : 2.3 Ghz• Attention level < 65 ------ STOP • Attention level > 65 ------ START• Baud rates available at 1200, 9600 ,57600 or
115200
Project Overview
http://www.ipmc.cnrs.fr
www2.latech.edu
Measure Brain Activity (EEG)
Translate into signal usable by a device (wheelchair, robotic arm, etc)
NeuroSky
• NeuroSky chip output– DC Motor Control
• Pulse width Modulation
Fan HighFan MediumFan Off
Neurosky
• Increase Brain Activity
• Increase Pulse Width
Fan High
http://www.ipmc.cnrs.fr
MINDBOT
BLUETOOTH
UART
UART
ZIGBEE MODULE
SENSES ATTENTION LEVEL
BLUETOOTH RFCOMM SERIAL PORT
ZIGBEE MODULE
8051 CONTROLLER WHEEL CONTROL
BOT
uses ‘SERIAL’ functionTX COMMAND
HEADSET
RX COMMAND
CONTROLS MOTOR BASED ON COMMAND
APPLICATIONS-Continued..
• Portable medical applications• Motor speed control• Drowsy driver detection• Light intensity control• Music play based on mind state• Mind gaming• Sports [ready zone analyser]•