VoiceLearn: This project is a puzzle which is made for visually impaired children to facilitate their learning process and make it more fun and entertaining. It works as follows: the user grasps the continent and recognize it, then places it in the corresponding place in the puzzle plate, and finally the device automatically speaks the continent name in both Arabic and English.

Board Making

After deciding the project idea and putting the product preliminary design, I started proceeding by the project board. The board will act as the brain of the puzzle that will be responsible for storing the voice, restore it when it is stimulated by connection, and sense every take and put of the puzzle item.

Board Making Processes

1. Board design and testing on the software

2. Making on the Modella machine

Use double tape to secure the copper board on-top of the sacrificial plate, But don't ovelap the tape or leave bubbles under it to keep the board straight.

Download

Picture must be in a PNG extension picture with black&white(monochromatic) and check the distances between traces to be bigger than the diameter of tool you will use.

Import in FabModules

Import(after importing the picture will appear in the page) --->.rml(the extension of Gcode for roland srm) ---> Traces (chose the process you want to make) --->SRM-20(choose the machine from the list) ---> Calculate(will calculating the code and traces) ---> Save(save the file in your computer to use it)

Import in cutting Vpanel for SRM20(This website will be helpful

3. Soldering of the components

4. Test it and now it is ready for the use

Puzzle Making

The puzzle making here means the process of making the epoxy resin continents that will be used by the visually impaired children and will put on the puzzle surface to stimulate the process to speak the continent name.

Puzzle Making Processes

1. Puzzle making, All process with detail in my (Moulding and Casting Assignment)

2. Make it conductive using copper tape

Puzzle Case Making

The puzzle case is responsible to store all the electronics components, hold the puzzle on its surface, and act like the full puzzle body.

Board Making Processes

1. Design of the case with its cover

2. Mill it on the CNC milling machine (Base and Cover)

3. Surface finish with sand paper

4. Make the continents design to be engraved on the case cover surface

   
   

5. Painting and being ready for use

Programming

It was the time to start program the brain of the final product.

Prepare my own board by burn on it the bootloader to be ready for programming

Uploaded Arduino ISP code on the Arduino board to make it a programmer.

Then I've uploaded my code on board

#include 
#include 
#include 

#include "SD.h"
#define SD_ChipSelectPin 4
#include "TMRpcm.h"
#include "SPI.h"
#define trigpin 7
#define trigopin 8

TMRpcm tmrpcm;

void setup(){
  pinMode (trigpin,INPUT_PULLUP);
  pinMode (trigopin,INPUT_PULLUP);
tmrpcm.speakerPin = 9;
Serial.begin(9600);
if (!SD.begin(SD_ChipSelectPin)) {
Serial.println("SD fail");
return;
}


}
int flag=0;
int flag1=0;

void loop(){ 
  int sp;
  int sp1;
  sp=digitalRead(trigpin);
    sp1=digitalRead(trigopin);
      if (sp==LOW&&flag==0) {
     tmrpcm.setVolume(5);
tmrpcm.play("diags.wav");    
delay (5000);
flag=1;
  }
  else if (sp1==LOW&&flag1==0) {
     tmrpcm.setVolume(5);
tmrpcm.play("Africa.wav");
delay (5000);
flag1=1;
  }
  else if (sp==HIGH&&sp1==HIGH){
    flag=0;
    flag1=0;
    delay (500);
    }
  
  }

Now lets test it

Arduino code source

---

Final Product

After finalizing all subsystems of the puzzle, I connected them all together, assembled the, and finalized all connections and fixations

Testing and Feedback

After finalizing the product I tested it on 5+ visually impaired users and took fruitful feedbacks that will be taken into considerations in the commercial implementations.