Walk Helper for Mentally Challenged Students

To relieve mentally handicapped students' effort and time spent in training walking, Walk Helper with Curie Board will help them.

IntermediateWork in progress10 hours2,740

Walk Helper for Mentally Challenged Students

Things used in this project

Hardware components

Arduino 101

Bitcraze Buzzer deck

LED (generic)

Breadboard (generic)

Software apps and online services

Arduino IDE

Story

Mentally handicapped students learn everything by repeated behaviors, so they need very long time and efforts to train something whether it is easy or not. Some students have difficulty in walking and balancing, but they don't realize they're tilted or in wrong way. So, Gyro sensor and Accelerometer included in Curie Nano Board are used in order to help disabled students modify their walking posture and balance.

When students are tilted in one way, for example, left side, the gyro sensor estimates the direction and indicates the biased side to the student. Then the student can repeat rebalancing and walking ahead, so that it can improve students' muscle and balancing ability.

Code

walk helper

#define RIGHT         0001
#define LEFT          0002
#define NORMAL        0003 
#define FRONT         0004
#define BACK          0005
#define RIGHT_FRONT   0006
#define RIGHT_BACK    0007
#define LEFT_FRONT    0011
#define LEFT_BACK     0012
 
#include "CurieIMU.h"
 
int tilted = NORMAL;
int SAVED_TILT = NORMAL;
 
void setup() {
 
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  
  Serial.begin(9600); // initialize Serial communication
  while (!Serial);    // wait for the serial port to open
 
  // initialize device
  Serial.println("Initializing IMU device...");
  CurieIMU.begin();
 
  // Set the accelerometer range to 2G
  CurieIMU.setAccelerometerRange(2);
}
 
void loop() {
  float ax, ay, az;   //scaled accelerometer values
 
  // read accelerometer measurements from device, scaled to the configured range
  CurieIMU.readAccelerometerScaled(ax, ay, az);
  
//=============================================
  if(ax*10 <= -5) //오른쪽
  {
      if(az*10 <= 7)
      {
        tilted = RIGHT;
      }
      else
      {
        tilted = NORMAL;
      }
  }
  else if(ax*10 >= 5) //왼쪽
  {
      if(az*10 >= -7)
      {
        tilted = LEFT;
      }
      else
      {
        tilted = NORMAL;
      }
  }
  else
  { 
     tilted = NORMAL;
  } //오른쪽
//=============================================
  SAVED_TILT = tilted;    //저장
//=============================================
  if(ay*10 >= 5.5)            //앞
  {
   if(tilted == NORMAL)
   {
    tilted = FRONT; 
   }
   else if(tilted == RIGHT)
   {
    tilted = RIGHT_FRONT;
   }
   else if(tilted == LEFT)
   {
    tilted = LEFT_FRONT;
   }
  } else if(ay*10 <= -5.5)     //뒤
  {
   if(tilted == NORMAL)
   {
    tilted = BACK; 
   }
   else if(tilted == RIGHT)
   {
    tilted = RIGHT_BACK;
   }
   else if(tilted == LEFT)
   {
    tilted = LEFT_BACK;
   }
  }
  else
  {
    tilted = SAVED_TILT;
  }
  //=============================================
  int delaytime = random(10,500);
  // display tab-separated accelerometer x/y/z values
  Serial.print(ax*10);
  Serial.print("  ");
  Serial.print(ay*10);
  Serial.print("  ");
  Serial.print(az*10);
  Serial.print("  ");
  Serial.print("Status : ");
  
  if(tilted == LEFT)
  {
    Serial.print("LEFT TILTED");
    digitalWrite(13,HIGH);
    delay(delaytime);
  }
  else if(tilted == NORMAL)
  {
    Serial.print("NOT TILTED");
    delay(100);
  }
  else if(tilted == RIGHT)
  {
    Serial.print("RIGHT TILTED");
    digitalWrite(12,HIGH);
    delay(delaytime);
  }
  else if(tilted == FRONT)
  {
    Serial.print("FRONT TILTED");
    digitalWrite(11,HIGH);
    delay(100);
  }
  else if(tilted == BACK)
  {
    Serial.print("BACK TILTED");
    digitalWrite(10,HIGH);
    delay(100);
  }
  else if(tilted == RIGHT_FRONT)
  {
    Serial.print("RIGHT & FRONT TILTED");
    digitalWrite(12,HIGH);
    digitalWrite(11,HIGH);
    delay(100);
  }
  else if(tilted == RIGHT_BACK)
  {
    Serial.print("RIGHT & BACK TILTED");
    digitalWrite(12,HIGH);
    digitalWrite(10,HIGH);
    delay(100);
  }
  else if(tilted == LEFT_FRONT)
  {
    Serial.print("LEFT & FRONT TILTED");
    digitalWrite(13,HIGH);
    digitalWrite(11,HIGH);
    delay(100);
  }
  else if(tilted == LEFT_BACK)
  {
    Serial.print("LEFT & BACK TILTED");
    digitalWrite(13,HIGH);
    digitalWrite(10,HIGH);
    delay(100);
  }
  digitalWrite(13,LOW);
  digitalWrite(12,LOW);
    digitalWrite(11,LOW);
  digitalWrite(10,LOW);
  Serial.println("  ");
  delay(10);
}
 
 
 
 
https://github.com/01org/corelibs-arduino101/tree/master/libraries