Created February 15, 2019

brainwave controlled wheel chair

Brainwave controlled wheel chair is an attempt to help the most basic function of physically challenge people which is locomotion.

Things used in this project

Hardware components

ST STM32L4, STM32F7 Nucleo 144 STM32F7

brainwave nuerosky

Hand tools and fabrication machines

OpenBuilds Drill Taps

Story

PROBLEM IDENTIFICATION AND DEFINITION

People who have severe movement disorders like Amyotrophic Lateral Sclerosis (ALS) or Locked in Syndrome, is a condition where a patient is awake and aware of its surrounding but unable to communicate or perform any action due to paralysis of almost every voluntary muscles in the body (with the exception of eye movements and blinking). The people who are suffering from severe Cerebral Palsy disorder are not able to speak or not understandable enough so they could not communicate, navigate and interact with others.ALS patients, paralyzed patients, Physically Challenged and Old age .These people also have severe movement disorder .Imagine these patients having a fullyfunctional brain trapped within a non-functioning body. This project is dedicated to them formovement, communication and emergency alert for their caretaker.

OBJECTIVES OF THE PROJECT

The primary objective of this project is to develop an intelligent low cost brain and eye controlled wheel chair with communication interface system so that user can communicate by using eye blink detected from brain waves and same can be used control the wheel chair. To achieve maximum reliability and minimum cost, wireless connectivity is to be used as far as possible. To deliver a user friendly system, it is planned to develop an Android OS or Embedded windows based human machine interface. The wheel chair and the entire system is battery powered and can be recharged and used in any Indoor area. At the end of the project the following goals will be achieved.

1)To develop EEG Based Blink detection for control of wheel chair
2)To develop a user interface keyboard where the user can select the keys and type using his Blink to communicate with his care taker
3)To design a text to speech converter so whatever keys typed can be sent to a speaker or an SMS to the care taker.
4)To develop an Emergency Alert using Brainwaves
5)To design and develop an Omni directional Wheel Chair capable of recharging and handling a payload of 120 Kg.
6)To develop Lidar and Camera based Obstacle avoidance and Computer Vision system for smooth navigation of the wheel chair.
7)GPS based Path learning system based on Neural Networks It should be noted that the main objective of the project is intended to evaluate the ability of individuals to voluntarily control the wheel chair through their brain and eye activity, being necessary to ensure that the orders are executed properly. The overall objective is to build a relatively inexpensive, easily deployable intelligent wheel chair where user can control and communicate using this hardware.

Schematics

Code

brainwave contolled wheelchair

#define BAUDRATE 9600
 
const int MotR_A = 3;     
const int MotR_B = 5;     
const int MotL_A = 6;     
const int MotL_B = 9;     
byte GetValue;
void setup()
{
  Serial.begin(BAUDRATE);
  pinMode(MotR_A, OUTPUT);
  pinMode(MotR_B, OUTPUT);
  pinMode(MotL_A, OUTPUT);
  pinMode(MotL_B, OUTPUT);
}
byte ReadOneByte()           // One Byte Read Function
{
  int ByteRead;
  while(!Serial.available());
  ByteRead = Serial.read();
  return ByteRead;
}
void loop()
{
    GetValue = ReadOneByte();   
    switch(GetValue)
    {
       case 'L':                  
           Robot_Left();
           delay(4000);
           Robot_Stop();
           break;
        case 'R':
           Robot_Right();
           delay(4000);
           Robot_Stop();
           break;
        case 'F':
           Robot_Forword();
           break;
        case 'B':
           Robot_Reverse();
           break;
        case 'G':
           Robot_Forword();
           break;
        case 'S':
           Robot_Stop();
           break;          
    }
}
 
 
 
  void Robot_Forword()
 {
    digitalWrite(MotR_A, LOW);
    digitalWrite(MotR_B, HIGH);
    digitalWrite(MotL_B, LOW);
    digitalWrite(MotL_A, HIGH);
 }
  void Robot_Reverse()
 {
    digitalWrite(MotR_A, HIGH);
    digitalWrite(MotR_B, LOW);
    digitalWrite(MotL_B, HIGH);
    digitalWrite(MotL_A, LOW);
 }
   void Robot_Right()
 {
    digitalWrite(MotR_A, HIGH);
    digitalWrite(MotR_B, LOW);
    digitalWrite(MotL_B, LOW);
    digitalWrite(MotL_A, HIGH);
 }
    void Robot_Left()
 {
    digitalWrite(MotR_A, LOW);
    digitalWrite(MotR_B, HIGH);
    digitalWrite(MotL_B, HIGH);
    digitalWrite(MotL_A, LOW);
 }
     void Robot_Stop()
 {
    digitalWrite(MotR_A, LOW);
    digitalWrite(MotR_B, LOW);
    digitalWrite(MotL_B, LOW);
    digitalWrite(MotL_A, LOW);
 }

brainwave controlled wheel chair

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Custom parts and enclosures

brainwave contolled wheelchair

Schematics

brainwave contolled wheelchair

Code

brainwave contolled wheelchair

Credits

Comments

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brainwave controlled wheel chair

brainwave controlled wheel chair

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Custom parts and enclosures

brainwave contolled wheelchair

Schematics

brainwave contolled wheelchair

Code

brainwave contolled wheelchair

Credits

Comments