Class: PhidgetRfid::RfidHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/phidget_rfid/rfid_handler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RfidHandler 



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# File 'lib/phidget_rfid/rfid_handler.rb', line 8

def initialize()
  @phidget = Phidgets::RFID.new
  @time = Time.new
  @prompt = "at #{@time.strftime("%Y-%m-%d %H:%M:%S")} \033[0m"
  @log = ""
  
  @phidget.on_detach  do |device, obj|
    @log.append "\n#{device.attributes.inspect} removed"
  end
  
  @phidget.on_attach  do |device, obj|
    @phidget.antenna = true
    @phidget.led = false
  end
  
  @phidget.on_error do |device, obj, code, description|
    @log << "\033[31m\nError #{code}: #{description} #{@prompt}" 
  end
  
  @phidget.on_tag  do |device, tag, obj|
    @phidget.led = true
    @log << "\n\033[32m[+] #{protocol} tag detected #{@prompt}" 
  end
  
  @phidget.on_tag_lost do |device, tag, obj|
    @phidget.led = false
    @log << "\n\033[33m[-] #{protocol} tag removed #{@prompt}"
  end
  
  
end

Instance Attribute Details

#log ⇒ Object

Returns the value of attribute log.



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# File 'lib/phidget_rfid/rfid_handler.rb', line 6

def log
  @log
end

Instance Method Details

#device ⇒ Object 



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# File 'lib/phidget_rfid/rfid_handler.rb', line 79

def device
  puts "Library Version: #{Phidgets::FFI.library_version}"
  puts "Class: #{@phidget.device_class}"
  puts "Id: #{@phidget.id}"
  puts "Serial number: #{@phidget.serial_number}"
  puts "Digital Outputs: #{@phidget.outputs.size}"
end

#protocol ⇒ Object 



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# File 'lib/phidget_rfid/rfid_handler.rb', line 40

def protocol
  if(@phidget.attached?)
    @phidget.last_tag_protocol
  end
end

#read ⇒ Object 



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# File 'lib/phidget_rfid/rfid_handler.rb', line 46

def read
  if(@phidget.attached?)
    @phidget.last_tag
  end
end

#write(value, protocol = nil, lock = false) ⇒ Object 



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# File 'lib/phidget_rfid/rfid_handler.rb', line 52

def write(value, protocol = nil, lock = false)
  if (protocol == nil)
    protocol = 
      if @phidget.tag_present
        @phidget.last_tag_protocol
      else
        "EM4100"
      end
  end

  if(@phidget.attached?)
    p = protocol.to_sym

    if lock
      puts "Data: #{value}"
      puts "Protocol: #{p}"
      puts "Are you sure you want to lock the RFID Tag? This will make it read-only (y/N)"
      r = gets.chomp
      @phidget.write(value, p, true) if r == "y"
    else
      @phidget.write(value, p)
    end


  end
end