Robert Korn
Published © MIT

Arduino Serial Port Shield for Linkit One

A Legacy Serial Port

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Arduino Serial Port Shield for Linkit One

Things used in this project

Hardware components

max232 IC
×1
1uF Capacitor
×5
DB-9 Connector
×1
Arduino Proto Shield
Arduino Proto Shield
×1

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

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Schematics

Schematic

Almost verbatim from the data sheet
Fcw0zixii4ysi56

Code

Serial Test Terminal

Arduino
This is just the Software Serial Demo remixed for the Linkit One's serail1 port
//****************************************************************
//*  Name    : Serial Demo                                       *
//*  Author  : Robert Joseph Korn                                *
//*  Date    : 12/14/15                                          *
//*  Version : 1.1                                               *
//*  Notes   : Really just the software serial demo              *
//*          : changed for serial1                               *
//****************************************************************

void setup() {
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

 Serial1.begin(9600);
}

void loop() { 
  if (Serial1.available()) {
    Serial.write(Serial1.read());
  }
  if (Serial.available()) {
    Serial1.write(Serial.read());
  }
}

Mag Stripe Reader Demo

Arduino
Simple Magtek Serial Swipe ReaderDemo
//****************************************************************
//*  Name    : Serial Mag Swipe Reader Demo                      *
//*  Author  : Robert Joseph Korn                                *
//*  Notice  : Copyright (c) 2015 Open Valley Consulting Corp    *
//*  Date    : 12/14/15                                          *
//*  Version : 1.1                                               *
//*  Notes   :                                                   *
//*          :                                                   *
//****************************************************************

int SER = 0;
int state = 0;
int numlen=0;
int namlen=0;
int o=0;
char nam[255];
char num[55];

void setup() {
  
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  Serial1.begin(9600);

//  Serial1.write((int)0x07); // Boot Message
  Serial1.write((int)0x0C); // Clear Message
  Serial1.println();
  Serial1.write((int)0x0F);
  Serial1.println("MediaTek Linkit One");
  Serial.println("MediaTek Linkit One");
  Serial1.write((int)0x0E);
  Serial1.println("Mag Swipe Read Demo");
  Serial.println("Mag Swipe Read Demo");
  Serial.println("");
 delay(500);

}

void loop() {
   
          if( state == 3 ) 
          {     
              Serial1.write((int)0x0C);
             Serial.print("Track 1: ");
              
            for(int o=0;o<namlen-1;o++)
             {
               Serial1.print(char(nam[o]));             
               Serial.print(char(nam[o]));             
             }
             
             Serial1.println("");
             Serial.println("");
             Serial1.write((int)0x0E);
             Serial.print("Track 2: ");
 
             for(int o=0;o<numlen-1;o++)
             {
               Serial1.print(char(num[o]));             
               Serial.print(char(num[o]));             
             }
             
             Serial1.println("");
             Serial.println("");
             Serial.println("");

            numlen=0;
            namlen=0;
            state=0;     
          }
  
  if (Serial1.available() > 0) {
      SER = Serial1.read(); 

  switch(state)
  {
    case 0:if (SER==0x3B)  
               {
                 state=1;
               }
           if (SER==0x25)  
               {
                 state=2;
               }break;
               
    case 1:num[numlen]=SER;  
            numlen++;             
              if (SER==0x3F)  
               {
                 state=3;
               }break;
               
    case 2:nam[namlen]=SER;  
            namlen++;              
              if (SER==0x3F)  
               {
                 state=0;
               }break;
          
     default:break;
  }
 
  }

}

Credits

Robert Korn

Robert Korn

15 projects • 17 followers
I Made the Internet of Things before people had a name for it.

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