OpenTracker USB User’s Manual
26
GPIO
<n> on | off | toggle | in
Reads or sets state of a general-purpose digital I/O pin. ‘On’ sets the pin
to the high state, ‘Off’ sets it to low state, ‘Toggle’ reverses the state of the
pin, and ‘In’ switches the pin to input mode and returns 1 or 0 depending
on the input signal. This command is used primarily for scripting. Pin
output state settings are not retained when power is lost. See the
telemetry section of this manual for details on pin assignments.
Example: GPIO 1 ON
Return value: 0 or 1 depending on input signal
HALFSLOT
on|off
When timeslotting is enabled,
HALFSLOT
adds ½ second to the slot time.
HBAUD
1200|300
Selects transmission baud rate. Note that the reception baud rate is fixed
at 1200 baud.
HEADERLN
on|off
Breaks
MONITOR
packets into two lines, with header and payload
separated.
INFO
Displays general system and diagnostic data, including number of packets
heard, buffer overruns, and frame check sequence errors detected.
INTERVAL
<0-65535> (seconds)
Sets the interval between automatic transmissions.
LVINHIBIT
<0-255> (* 0.0784 volts)
Sets the low-voltage inhibit threshold. When the supply voltage drops
below this level, the unit will cease transmitting. Each unit is 0.0784 volts,
so a setting of 100 equals 7.84 volts.
MAXRANGE
<0-255> (miles)
When set to a non-zero value, waypoints will only be created for stations
and objects within the specified range.
MONITOR
on|off
Displays incoming packets on the console as they are received.