Module: IprogSms::Sim800cTroubleshoot

Defined in:
lib/iprog_sms/sim800c_troubleshoot.rb

Class Method Summary collapse

Class Method Details

.check_signal_strength(serial) ⇒ Object

Check signal strength



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 40

def self.check_signal_strength(serial)
  response = send_at_command(serial, "AT+CSQ")
  if response&.include?("+CSQ")
    signal_strength = response.match(/\+CSQ: (\d+)/)[1].to_i
    puts "Signal strength: #{signal_strength}"
    if signal_strength < 10
      puts "Warning: Low signal strength may affect message delivery."
    else
      puts "Signal strength is adequate."
    end
  else
    puts "Failed to retrieve signal strength."
  end
end

.list_messages(serial) ⇒ Object

List all messages in the inbox



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 56

def self.list_messages(serial)
  response = send_at_command(serial, 'AT+CMGL="ALL"')
  if response&.include?("+CMGL")
    puts "Messages in inbox:\n#{response}"
  else
    puts "No messages found in the inbox or unable to retrieve messages."
  end
end

.restart_module(serial) ⇒ Object

Restart the SIM800C module (if supported)



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 66

def self.restart_module(serial)
  response = send_at_command(serial, "AT+CFUN=1,1")
  if response&.include?("OK")
    puts "Module restarted successfully."
  else
    puts "Failed to restart the module. Try manually if this command is unsupported."
  end
end

.send_at_command(serial, command, wait_time = 1) ⇒ Object

Sends an AT command to the SIM800C and reads the response



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 7

def self.send_at_command(serial, command, wait_time = 1)
  puts "Sending command: #{command}"
  serial.write("#{command}\r")
  sleep(wait_time)
  response = serial.read(1000)
  puts "Response: #{response}"
  response
rescue StandardError => e
  puts "Error sending command #{command}: #{e.message}"
  nil
end

.set_message_storage(serial) ⇒ Object

Set message storage location to SIM card



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 20

def self.set_message_storage(serial)
  response = send_at_command(serial, 'AT+CPMS="SM","SM","SM"')
  if response&.include?("OK")
    puts "Message storage set to SIM card (SM)."
  else
    puts "Failed to set message storage location."
  end
end

.set_text_mode(serial) ⇒ Object

Set message format to text mode



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 30

def self.set_text_mode(serial)
  response = send_at_command(serial, "AT+CMGF=1")
  if response&.include?("OK")
    puts "Message format set to Text Mode."
  else
    puts "Failed to set message format to Text Mode."
  end
end

.troubleshoot_sim800c(port_str) ⇒ Object

Main troubleshooting function



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# File 'lib/iprog_sms/sim800c_troubleshoot.rb', line 76

def self.troubleshoot_sim800c(port_str)
  begin
    serial = Serial.new(port_str, 9600) # Adjust baud rate if necessary
    puts "Starting SIM800C troubleshooting..."

    # Step 1: Set message storage to SIM card
    set_message_storage(serial)

    # Step 2: Set message format to Text Mode
    set_text_mode(serial)

    # Step 3: Check signal strength
    check_signal_strength(serial)

    # Step 4: List all messages in the inbox
    list_messages(serial)

    # Step 5: Restart the module if needed
    puts "Do you want to restart the module? (y/n)"
    if gets.chomp.downcase == 'y'
      restart_module(serial)
    end

  rescue StandardError => e
    puts "Error: #{e.message}"
  ensure
    serial&.close
    puts "Troubleshooting complete."
  end
end