Arduino/Genuino Project : Coffee Tally Sheet

Project : Beanduino

PLEASE NOTE THAT ARDUINO AND HTTPS DO NOT WORK TOGETHER. THIS PROJECT RAN FINE AT THE HTTP AGE.

✈ Motivation

✈ System

✈ Sketch for Arduino/Genuino • TRANSMITTER

/* ///////////////////////////////////////////////////////////// 
ARDUINO/Genuino (UNO) Test/Demo Sketch for RFID ANTENNA 
MODEL "TOWI TEK" FROM BIG C, #191553
Software Version 2.0, 
18.08.2020, Alexander C. Frank
Pin 10 on the ethernet shield is CS for the W5500, and pin 4 
is CS for the micro SD card reader.
//////////////////////////////////////////////////////////////*/

#include <SoftwareSerial.h>
#include <SPI.h>
#include <Ethernet2.h>
byte mac[] = { 0x99, 0x99, 0x99, 0x99, 0x99, 0x99} ;
char server[] = "www.nesweb.ch";
IPAddress ip(199,199,199,199);
EthernetClient client;
SoftwareSerial RFID(9, 8); // RX, TX

byte data ;
byte RingBuffer[7] ;
unsigned int RingBufferPointer = 0 ;
boolean NewTag = false ;
String UserId = "";
String LastUserId = "580034a7ae";
const char EndOfString = '\0' ;
String TopSecretBuzzWord ="HIGHSECURITYULTRALONGPASSWORDGOESHERE" ;
String Answer = "" ;
unsigned int looping = 0;
const int BEEP = A0 ;
unsigned long FlushTime = 9999 ;
int bytes_from_RFID = 5;


void setup() 
{
  Serial.begin(9600);
  pinMode( 4, OUTPUT );
  digitalWrite( 4, HIGH );
  pinMode( BEEP, OUTPUT );
  digitalWrite( BEEP, HIGH );
  delay(2000);
  digitalWrite( BEEP, LOW );
  // set the data rate for the SoftwareSerial port
  RFID.begin(9600);
  delay(3000);
  Serial.println("Setup Software Serial Port @ 9600 : DONE.");
  
  // start the Ethernet connection:
  if (Ethernet.begin(mac) == 0) 
  {
    Serial.println("Failed to configure Ethernet using DHCP");
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip);
    Serial.println("Try to configure using IP address instead of DHCP");
  }
  // give the Ethernet shield a second+ to initialise:
  delay(10000);
  Serial.println("Setup finished.");  
 
}
 
boolean GET_RFID() 
{ 
  boolean got_something = false ;
  RingBufferPointer = 0 ;
  if (RFID.available() > 4) 
  {
    RingBuffer[0] = RFID.read();
    RingBuffer[1] = RFID.read();
    RingBuffer[2] = RFID.read();
    RingBuffer[3] = RFID.read();
    RingBuffer[4] = RFID.read();
    got_something = true ;
  }
  UserId = "";
  for (int i=0; i<5; i++)
  {
    if (RingBuffer[i] < 0x10) UserId += "0" ;
    UserId += String(RingBuffer[i],HEX);
  }
  if (got_something)
  {
    Serial.println(UserId);
    digitalWrite( BEEP, HIGH );
    delay(200);
    digitalWrite( BEEP, LOW );
    
    delay(400);
    
    digitalWrite( BEEP, HIGH );
    delay(200);
    digitalWrite( BEEP, LOW );
    
    delay(400);
    
    digitalWrite( BEEP, HIGH );
    delay(200);
    digitalWrite( BEEP, LOW );
    
    delay(400);
    
    digitalWrite( BEEP, HIGH );
    delay(1200);
    digitalWrite( BEEP, LOW );
  }
   
  return got_something ;
}

void FLUSH_RFID() 
{ 
  unsigned long StartTime = millis();
  unsigned long UsedTime = 0 ;
  unsigned long NowTime ;
  byte dummy ;
  delay(1) ;    // StartTime != NowTime
  while (UsedTime < FlushTime)
  {
    if (RFID.available()) dummy = RFID.read();
    // TAKE CARE OF THE OVERFLOW !!!
    NowTime = millis();
    // //////////////////////////////////////////
    if (StartTime > NowTime) 
    {
      UsedTime = 4294967295 - StartTime ;
      UsedTime += NowTime ;
    }
    else 
    {
    UsedTime = NowTime - StartTime ;
    }
    // //////////////////////////////////////////
  }
}

void MES_RFID() 
{ 
  // HTTP REQUEST //
  if (client.connect(server, 80))
  {
    delay(10);
    // Make a HTTP request:
    Answer = "GET /machstrich.php?user-id="; Answer += UserId ;
    Answer += "&buzzword="; Answer += TopSecretBuzzWord ; 
    Answer += " HTTP/1.1";
    client.println(Answer);
    client.println("Host: www.nesweb.ch");
    client.println("Connection: close");
    client.println();
    client.stop();
    Serial.println(Answer);
  }
  else 
  {
  // if you didn't get a connection to the server:
  // STORE THE DATA ON THE SD CARD ...
  Serial.println("connection failed"); 
  }
  // if there are incoming bytes available
  // from the server, read them and print them:
  if (client.available()) 
  {
    char c = client.read();
    Serial.print(c);
  }
  
  if (!client.connected()) 
  {
    Serial.println("disconnecting.\n");
    client.stop();
  }
}


void loop() 
{  

  if (GET_RFID() )
  {
    MES_RFID() ;
    FLUSH_RFID() ;
  }

  delay(200);
 
}
 
// ///////////////////////////////////////////////////////////// 
// END OF FILE.
// ///////////////////////////////////////////////////////////// 

✈ PHP Script for the website • RECEIVER

		
<?php
/*******************************************************************************
*  Title: mes.php (part of COCO)
*  Mach En Strich
*  Version: 1.0 May 28, 2013
*  Version: 2.0 August 17, 2015 : if user_id unknown >> use "error"
*  Author: Alexander C. Frank
*  Website: http://www.nesweb.ch
*******************************************************************************/

// GET USER-ID
$user = $_GET["user-id"];
// AND PASSWORD :-)
$check = $_GET["password"];

if ($check == 'HIGHSECURITYULTRALONGPASSWORDGOESHERE') 

	{

	$filename = ('PATHTODATAFILES/' . $user . '_cups.txt');

	if (file_exists($filename)) 
		{
		// OPEN FILE
		$datei = fopen($filename,'r');
		
		// WE ASSUME MAXIMUM 10 DIGITS
		$cups = fgets($datei, 10);
		
		// CLOSE FILE
		fclose($datei);
		
		// INCREMENT COUNTER
		$cups = $cups + 1 ;
	
		// OPEN FILE
		$datei = fopen($filename,'w');
		fwrite($datei, $cups. "\n");
		fclose($datei);
		}
	 	
	else 
	
		{
		// COLLECT UNKNOWN RFID SOMEWHERE ELSE
		$filename = ('PATHTODATAFILES/error_cups.txt');
		// OPEN FILE
		$datei = fopen($filename,'r');
		
		// WE ASSUME MAXIMUM 10 DIGITS
		$cups = fgets($datei, 10);
		
		// CLOSE FILE
		fclose($datei);
		
		// INCREMENT COUNTER
		$cups = $cups + 1 ;
	
		// OPEN FILE
		$datei = fopen($filename,'w');
		fwrite($datei, $cups. "\n");
		fclose($datei);
		
		// EMAIL TO BARISTA
		$empfaenger = 'YOUREMAILGOESHERE';
		$betreff = 'COFFEE ALARM';
		$nachricht = 'COFFEE ALARM : ' . $user ;
		$header = 'From: barista@nesweb.ch' . "\r\n" .
		    'Reply-To: barista@nesweb.ch' . "\r\n" .
		    'X-Mailer: PHP/' . phpversion();
		
		mail($empfaenger, $betreff, $nachricht, $header);
		}
	} 
?>

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