' The transmitter code.  Via the transmitter, a "!" is sent.
'   The receiving antenna waits until it receives the "!" before beginning
'   the ADC.  The transmitting antenna sends 8-bits of zeros, which is
'   inverted by the serial communication protocal.  That means the receiving
'   antenna receives 8-bits worth of a high signal for the analog read

' {$STAMP BS2}
' {$PBASIC 2.5}

OUTPUT 6          ;connects TO the TX PIN ON the antenna

ZERO  CON  0

Main:

PULSOUT 6, 120
SEROUT 6, 16468, ["!", ZERO]
PAUSE 50

GOTO Main

STOP
END