Product Manual

appear in the middle of the string. The user application should NOT rely on any given option
being at any given position; the string should be parsed using the comma as a delimiter, and the
desired option retrieved by name. Note that the TM option does not appear in the output string.
<rate> is a value between 1 and 2147483647 (2
31
-1). It will be the number of seconds in
between each message. The default rate for each message type is 60 (once per minute).
Messages for DT, GN, GJ, and GS will not be emitted to the user until the GPS has obtained a
fully resolved fix.
The GP option allows specifying how the GPIO1 pin will operate. The available modes are:
Mode
Description
0
Analog, pin is internally disconnected and not used (default)
1
Input, low-to-high transition exits Tile sleep mode
2
Input, high-to-low transition exits Tile sleep mode
3
Output, low indicates Tile is in sleep mode (1)
4
Output, high indicates Tile is in sleep mode (1)
5
Output, low indicates Tile is in sleep mode (2)
6
Output, high indicates Tile is in sleep mode (2)
7
Output, low indicates Tile has messages pending for client (3)
8
Output, high indicates Tile has messages pending for client (3)
9
Output, set low (4)
10
Output, set high (4)
It is the responsibility of the client to provide the appropriate pull-up or pull-down resistors. The
output modes are open drain.
(1) - If either of these modes are selected, the pin will be set to the selected state after the client
has issued the $SL command. The pin will continue to indicate the sleep state during the times
the Tile wakes to perform any internal housekeeping functions, and return to the awake state
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