I/O Connections
| Pin # | Function | Description |
|---|---|---|
| 1 | TXD 2 | Port 2 transmit, CMOS/TTL |
| 2 | Power | 5VDC 5%, 150 mA typical |
| 3 | TXD 1 | Port 1 transmit, CMOS/TTL |
| 4 | Backup Power | +3.2VDC to +5.25VDC 2uA typical |
| 5 | RXD 1 | Port 1 receive, CMOS/TTL |
| 6 | 1 PPS | Pulse-Per-Second, CMOS/TTL |
| 7 | RXD 2 | Port 2 receive, CMOS/TTL |
| 8 | GND | Gound, Power and Signal |
Full Documentation (PDF)
Programming Notes
NMEA message programming tool Version 1.2. Shows incoming TSIP message IDs.
WinHexCom Utility from Aerospace Software Ltd. (Zip)
Interface Rev 4
Switching voltage regulator, 8-pin header for direct connect to receiver. Jumpers for selecting port 1 or port 2.Eagle Files
Gerber Files
Interface Rev 3.
7805 Regulator, 8-pin header for direct connect to receiver. Jumpers for selecting port 1 or port 2.Eagle Files
Pictures
- Receiver and antenna - Bottom
- Receiver and antenna - Top
- TinyTrak-3 and prototype board - Front
- TinyTrak-3 and prototype board - Back
- These pictures show where I've been headed with this
project all along. Since I'm mostly interested in using the
GPS units for trackers, I like the idea of having the
converter/power box with my tracker where power is more
convenient. Then just run a cable out from there to the
GPS module/antenna.
The Altoids tin and the green case can be connected to each other with any standard serial cable of whatever length you desire. Also, I like the fact that when needed I can easily disconnect the attached GPS antenna and use one of the magetic antennas that have a longer cable.
