Module: AgriController::MCH383

Defined in:
lib/agri-controller/device/mch383.rb

Overview

MCH383(MCH-383,MCH-383SD) is Tenperature,Humidity,CO2-ppm recorder

Usage

include AgriController::MCH383

  • res=read(“COM2”) # =>“00241040100000643r00242010100000310r00243190000000612r”

  • res=read(“/dev/ttyUSB0”)# =>“00241040100000643r00242010100000310r00243190000000612r”

  • parse(res) # =>[“%”], “C”], “ppm”]]

Class Method Summary collapse

Class Method Details

.data_hash(num) ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 59

def data_hash(num)
  case num
  when "01"
    #"Celsius"
    "C"
  when "02"
    #"Fahrenheit"
    "F"
  when "04"
    #"Humidity"
    "%"
  when "19"
    #"CO2 of ppm"
    "ppm"
  else
    nil
  end
end

.list(code) ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 142

def list(code) 
  parse(code)
end

.of_10(of_ten) ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 78

def of_10(of_ten)
  case of_ten
  when "0"
    1
  when "1"
    0.1
  when "2"
    0.01
  when "3"
    0.001
  else
    nil
  end
end

.parse(code) ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 127

def parse(code)
  result={}
  #begin
  data=code.split("\r")
  data.each{|str| x=to_f(str);result[x.keys.first]=x[x.keys.first]}
    #if data[0].size>1
    #  x=to_f(data.last+data[0])
    #  result << x if x
    #end
  #rescue
  #  return nil
  #end
  return result
end

.read(port) ⇒ Object

This require “serialport” #RUBYGEMS



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# File 'lib/agri-controller/device/mch383.rb', line 19

def read(port)
  require "rubygems" if RUBY_VERSION < "1.9.0"
  require "serialport"

  #t=Time.now
  res=nil
  begin

   # SerialPort.open(port,9600,8,1,SerialPort::NONE){|sp| sp.read_timeout=100
   # while res=sp.read(1)
   #   if res=="\r"
   #     break
   #   end
   # end
    #}
    #
   #read data
   #SerialPort.open(port,9600,8,1,SerialPort::NONE){|sp| sp.read_timeout=500; res=sp.read(48)}

  sp=SerialPort.new(port,9600,8,1,SerialPort::NONE)
  sp.read_timeout=500
  while res=sp.read(1)
    if res=="\002"
      res=res+sp.read(47)
      break
    end
  end
  sp.close
    #p Time.now-t
    return res # =>"\00241040100000643\r\00242010100000310\r\00243190000000612\r"
  rescue
    return nil
  end
  
end

.sample ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 55

def sample
  "\00241040100000643\r\00242010100000310\r\00243190000000612\r"
end

.samples ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 146

def samples
  ["\00241040100000643\r\00242010100000310\r\00243190000000612\r",
  "\00242010100000311\r\00243190000000612\r\00241040100000643\r",
  "\00243190000000612\r\00241040100000643\r\00242010100000312\r",
  "\r\00243190000000590\r\00241040100000639\r\00242010100000309",
  
  "\00243190000000612\r",
  "not_data",
  nil]
end

.to_f(x) ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 102

def to_f(x)
  #x="\00243190000000612\r"
  result={}
  
  if x.chomp.size==15
    begin 
      #first_num=x.slice(1,1)#always "4"
      data_number=x.slice(2,1)
      unit_sign  =x.slice(3,2)
      positive   =x.slice(5,1)
      of_ten     =x.slice(6,1)
      num        =x.slice(7,8)
      
      val=value(num,of_ten,positive)
      
      result[data_number]=[val,data_hash(unit_sign)]
      result
    rescue
      return nil
    end
  else
    nil
  end
end

.value(num, of_ten, positive) ⇒ Object 



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# File 'lib/agri-controller/device/mch383.rb', line 93

def value(num,of_ten,positive)
  result=num.to_i * of_10(of_ten)
  if positive=="0"#plus +
    return result
  else#minus -
    return result*(-1)
  end
end