Overview
This shield requires a GPS module (sometimes called an "engine board" or "engine module") to receive the timecode data from GPS satelites. There are dozens of GPS modules on the market, each with slightly different specifications.
The Adafruit GPS shield v1.0 supports 4 popular hobbyist modules and is geared specifically for the EM-406A: the required connector is already soldered on and ready to go.
If you want to use a different module, check the parts list for the required connector as they are not included.
Supported modules
| Image | Name |
Description | Docs | Distributors | Power | I/O | Notes |
|---|---|---|---|---|---|---|---|
 |
USGlobalSat |
Sirf III chipset module with antenna, supercap, lock indicator | Adafruit ($60) | 5-6.5V | ~3.3V TTL serial 4800 baud | No backup battery required | |
 |
ETek EB-85A |
|
Ohararp ($55) DPCAV ($85) |
3.3-5V | ~3.3V TTL serial 38400 baud | 5 Hz update! | |
 |
Tyco A1035-D | Sirf III chipset module with antenna | Mouser ($62) | 3.3V | 3.3V TTL serial 4800 baud | ||
| Trimble Lassen iQ |
Sparkfun ($57) + Antenna ($19) | 3.3V | 3.3V TTL serial 4800 baud | Requires battery & antenna |