Module: Zklib::SerialManagement

Included in:
Zklib
Defined in:
lib/zklib/serial_management.rb

Constant Summary collapse

SERIAL_KEYWORD = 
'~SerialNumber'

Instance Method Summary collapse

Instance Method Details

#get_serial_number ⇒ Object

Get serial number of attendance machine



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# File 'lib/zklib/serial_management.rb', line 6

def get_serial_number
  execute_cmd(
    command:        CMD_DEVICE,
    command_string: SERIAL_KEYWORD
  ) do |opts|
    return puts "ERROR: #{options[:error]}" unless opts[:valid]

    data = opts[:data]
    if data.length > 8
      data.split("\u0000").pop.tr("#{SERIAL_KEYWORD}=", '')
    else
      puts 'ERROR: Invalid serial number response'
    end
  end
end