
OpenTracker
The OpenTracker configuration window looks like this:
Since the SmartBeaconing mode has been selected, the “TX Interval” has been greyed-out. (the
SmartBeacon settings are displayed in a separate window, once the “Settings” button is pressed).
GPS interface
The Tracker is designed to read the output from the GPS unit in NMEA 0183 format, at 4800
baud only. The simpler GPS units normally default to this, but the “smarter” ones may need to be
set up in their Interface menu.
If you have a serial lead which connects your GPS to a PC COM port, this will also be suitable to
connect to the Tracker. Otherwise, all that’s required is to connect the GPS “TX Data” output
to pin 2 on the Tracker, and the signal ground to pin 5.
The newer versions of the Trackers (TinyTrak3+ and OpenTracker1x) can also supply a
regulated 5V DC output to power up an external GPS receiver: this is available on pin 4, once an
internal jumper has been fitted. Otherwise, the GPS should be powered off its own independent
supply.
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