Class: HelloEepromLcdpa

Inherits:
ArduinoSketch show all
Defined in:
lib/examples/hello_eeprom_lcdpa.rb

Instance Attribute Summary

Attributes inherited from ArduinoSketch

#pins

Instance Method Summary collapse

Methods inherited from ArduinoSketch

#add, add_to_setup, #array, #assembler, #comment_box, #compose_setup, #define, #delay, #digitalWrite, #formatted_print, #initialize, #input_pin, #input_pins, output_pin, #output_pin, post_process_ruby_to_c_methods, pre_process, #serial_begin

Methods included from ExternalVariableProcessing

#c_type, #check_variable_type, #post_process_arrays, #post_process_vars, #pre_process_vars, #process_external_vars, #translate_variables

Constructor Details

This class inherits a constructor from ArduinoSketch

Instance Method Details

#clear_off_test ⇒ Object

clears bottom two lines



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# File 'lib/examples/hello_eeprom_lcdpa.rb', line 74

def clear_off_test   # clears bottom two lines 
  delay 2000
  myLCD.clearline 3
  myLCD.clearline 2   # leaves you at start of a 
                           # cleared third line
end

#loop ⇒ Object 



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# File 'lib/examples/hello_eeprom_lcdpa.rb', line 69

def loop
  x = 4       # loop has to have _something_
end

#setup ⇒ Object 



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# File 'lib/examples/hello_eeprom_lcdpa.rb', line 38

def setup
    delay 1500        # give startup screen time to finish and clear
   myLCD.clearscr    "  I2C EEPROM Demo"
    myLCD.setxy 0, 1, "byte write then read"
    myLCD.setxy 0, 2, "  back and display"
    myLCD.setxy 0, 3, "    to the LCD"
    
    clear_off_test
    myLCD.clearline 1, "  byte write test"
    
    myLCD.setxy 0, 2
    32.upto(109) do				# write address of byte to that b yte
	  |x| mem0.write_byte  x, x+7
      myLCD.print(".") if x%2
      delay 10      # EEPROM write _requires_ 3-10 ms pause
    end

    clear_off_test
    myLCD.clearline 1, "  byte read test "

    myLCD.setxy 0, 2
							# read and print 39 addresses with printable numbers
    70.upto(105) { |x| myLCD.print(mem0.read_byte(x)) }

    delay 2000
    clear_off_test
    myLCD.clearline 1, "-< tests complete >- "


end