#######################################################################
# Altek Model 40 Binary Format 2  16 Buttons
#
# BUTTON DIAGRAM                      
#   ________      and
#  /        \          CHARACTERS SENT
# |          |
# |----------|
# |0  1  2  3|          @  D  H  L
# |4  5  6  7|          P  T  X  \
# |8  9  A  B|          `  d  h  l
# |C  D  E  F|          p  t  x  |
# |__________|
#      ||
#
#######################################################################
#
# BUTTON-to-CHARACTER MAPPING
@ clear_mode 
D increment
H decrement
L view last 
P start
T goto log +
X goto log -
\\ wink
` draw line
d separate
h query 2
l connect
p step left
t step right
x step u
| step down
