====== Fortuna GPSmart ======

{{:hw:gpsmart.jpg?80|Fortuna GPSmart}}

===== Features =====
12 Parallel channels for fast position fixes, WAAS Enable.\\ 
Stores more than 3,000 waypoints\\ 
Compact size: W=58mm L=119mm H=30mm\\ 
Weighs only 110 grams\\ 
Multiple scale zoom levels\\ 
Can be used as a GPS Smart Antenna outputs NMEA 0183 V2.2\\ 
Capability of connecting to PC, Notebook or PDA\\ 
3 AAA Batteries (Batteries not included)\\ 
Back Light\\ 
Battery Low Indicator\\ 
Navigation Function\\ 
Go To Function\\ 
Route Function \\ 

===== Specifications =====

**Chipset:**\\ 
SiRF Star IIe/LP

**General:**\\ 
Frequency: L1, 1575.42 MHz\\ 
C/A: 1.023 MHz chip rate\\ 
Channels: 12 Channel all-in-view tracking\\ 
DGPS Source: Default: WAAS

**Standalone functions and screens:**\\ 
Satellite distribution\\ 
Position\\ 
Navigation\\ 
Map: Max 3,840 marks can be added\\ 
Route (20 routes, 31,084 route dots, 3,120 waypoints)\\ 
Go To\\ 
Database\\ 
Set Up (includes an interesting "mirror" mode)\\ 
Bluetooth On/Off toggle

**Antenna Type:**\\ 
Embedded patch antenna

**Accuracy : (DGPS None)**\\ 
Position: 10 meters, 2D, without SA

**Acquisition Rate: (Open Sky and Stationary )**\\ 
Reacquisition: 0.1 sec., average\\ 
Cold Start: 45 sec. typical\\ 
Warm Start: 38 sec. typical\\ 
Hot Start: 8 sec. typical

**Dynamics Conditions :**\\ 
Altitude: <18,000 meters\\ 
Velocity: < 515 meter/second\\ 
Acceleration: < 4g

**Interfaces:**\\ 
Serial Port: Mini USB form factor\\ 
Default baudrate: 38,400 bps\\ 
GPS Protocol: Default: NMEA-0183 (V2.0) - GGA, GSA, GSV ,MSS, RMC\\ 
Programmable: additional NMEA - VTG, GLL / SiRF Binary

**Power Consumption:**\\ 
82-93mA



===== Interface =====

The apparent USB interface is actually a TTL-level RS232 interface using a mini-USB connector. A standard USB cable will not work.

^Pin^Function^
|1|GND|
|2|RxD|
|3|TxD|
|4|unknown|
|5|5V|

This is the original pinout inside the unit.
   ________
  | USB   1]---+5v
  | Skt   2]---unknown function
  |       3]---data out (GPS -> PC)
  |       4]---data in (PC -> GPS)
  |_______5]---Gnd

Since pin 4 is not connected in mini-USB cables, cut the unused(Vref?) pin 2 trace and jumper it to pin 4.
   ________
  | USB   1]---------+5v
  | Skt   2]-+--/ /--unknown function
  |       3]-|-------data out (GPS -> PC)
  |       4]-+-------data in (PC -> GPS)
  |_______5]---------Gnd

===== Links =====

http://www.mobileplanet.com/forumthread.asp?code=GPSMART&thread=39