Class: SmsSerial

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dev = '/dev/ttyUSB0', callback: nil, debug: false) ⇒ SmsSerial

Returns a new instance of SmsSerial.



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# File 'lib/sms_serial.rb', line 19

def initialize(dev='/dev/ttyUSB0', callback: nil, debug: false)

  @debug = debug
  @sp = SerialPort.new dev, 115200    
  puts 'running ' + "SmsSerial".highlight 

  @t = Thread.new {

    Thread.current[:v] = []

    loop do

      message = @sp.read
      if message.length > 0
  
        callback.call(message) if callback and @debug
  
        if message =~ /^\+CMTI:/ then
          callback.call(message.lines[2]) if callback
        else

          Thread.current[:v] ||= []
          Thread.current[:v]  << message 

        end
      end
    end
  }
  
end

Instance Attribute Details

#t ⇒ Object (readonly)

Returns the value of attribute t.



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# File 'lib/sms_serial.rb', line 17

def t
  @t
end

Instance Method Details

#count ⇒ Object

count the number of SMS messages



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# File 'lib/sms_serial.rb', line 52

def count()

  puts 'inside count'.info if @debug

  cmd 'CPMS?' do |r|
    puts 'r: ' + r.inspect if @debug
    total = r.lines[2].split(',')[1].to_i
    puts ('message count: ' + total.to_s).debug if @debug

    total
  end
  
end

#delete(idx) ⇒ Object 



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# File 'lib/sms_serial.rb', line 66

def delete(idx)

  cmd 'CMD' do |r|
    total = r.lines[2].split(',')[1].to_i
    puts ('message count: ' + total.to_s).debug if @debug

    total
  end

end

#delete_all ⇒ Object 



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# File 'lib/sms_serial.rb', line 77

def delete_all()

  # format: [index, delflag]
  # delflag 1 means delete all read messages
  cmd 'CMGD=1,1'

end

#list_all ⇒ Object 



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# File 'lib/sms_serial.rb', line 85

def list_all()

  n = count()
  sleep 0.3

  @sp.write %Q(AT+CMGL="ALL"\r\n)
  n.times.map {r = read_buffer; parse_msg(r)}

  flush_output() if n < 1

end

#read(idx = 1) ⇒ Object

read an SMS message



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# File 'lib/sms_serial.rb', line 99

def read(idx=1)

  cmd('CMGR=' + idx.to_s) do |r| 
    begin
      parse_msg r 
    rescue SmsSerialError => e
      puts 'Invalid message no.'.warning
      nil
    end
  end

end