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.



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# 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
  
      sleep 0.3
  
    end
  }
  
end

Instance Attribute Details

#t ⇒ Object (readonly)

Returns the value of attribute t.



17
18
19
 
# File 'lib/sms_serial.rb', line 17

def t
  @t
end

Instance Method Details

#count ⇒ Object

count the number of SMS messages



55
56
57
58
59
60
61
62
63
64
65
66
67
 
# File 'lib/sms_serial.rb', line 55

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 Also known as: del 



69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/sms_serial.rb', line 69

def delete(idx)
  
  return delete_all() if idx.to_sym == :all

  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 



84
85
86
87
88
89
90
 
# File 'lib/sms_serial.rb', line 84

def delete_all()

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

end

#list_all ⇒ Object 



92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/sms_serial.rb', line 92

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



106
107
108
109
110
111
112
113
114
115
116
117
 
# File 'lib/sms_serial.rb', line 106

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