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Versions: 23
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Contents
class HelloLcdCharset < ArduinoSketch
# -------------------------------------------------------------------------
# Program to Display the entire lower half (under 0x80) character set
#
# The class variable @a defined as byte is needed to make RubyToC put
# the value to be 'printed' as a byte and thus give us the character
# that value represents.
#
# Brian Riley - Underhill Center, VT, USA July 2008
# <brianbr@wulfden.org>
#
# ----------------------------------------------------------------------
@a = byte
output_pin 14, :as => :myLCD, :device => :pa_lcd, :rate => 19200
output_pin 13, :as => :led
def loop
myLCD.clearscr "Alphabet Chars?n"
0x41.upto(0x5a) do |i| # A to Z
@a = i # forces 'byte' typing to variable
myLCD.print @a # so print rouien prints character represented
delay 50 # by the index value
end
0x61.upto(0x7a) do |i| # a to z
@a = i
myLCD.print @a
delay 50
end
delay 3000
myLCD.clearscr "Numeric Chars?n"
0x30.upto(0x39) do |i| # 0 to 9
@a = i
myLCD.print @a
delay 50
end
delay 3000
myLCD.clearscr "Other Chars?n"
0x21.upto(0x2f) do |i| # punctuation et al
@a = i
myLCD.print @a
delay 50
end
0x3a.upto(0x40) do |i|
@a = i
myLCD.print @a
delay 50
end
0x5b.upto(0x60) do |i|
@a = i
myLCD.print @a
delay 50
end
0x7b.upto(0x7f) do |i|
@a = i
myLCD.print @a
delay 50
end
delay 3000
end
end
Version data entries
23 entries across 23 versions & 4 rubygems