- 32 second cold start, less than 1 second hot start
- Supports 66-channel GPS
- Up to 10Hz update rate
- 3 to 4.2 V operating range
- Built-in rechargeable battery to preserve system data for rapid satellite acquisition
- Red LED indicator for GPS fix or no fix
- MediaTek MT3339 receiver chipset
- Capable of QZSS and SABS (WAAS, EGNOS, MSAS, GAGAN)
- Self-generated ephemeris prediction
- Supports assisted GPS (AGPS)
The LS20031 GPS receiver module’s firmware is initially set to a 5Hz update rate, a 57600bps serial communication rate, and is set to output GGA, GLL, GSV, GSA, RMC, and VTG NMEA sentences. After connecting the LS20031 GPS receiver to a computer using a serial port or USB-to-serial adapter, you can use the Mini GPS Windows application (1MB zip) to change these default settings. You can change the baud rate, or turn off the NMEA sentences you don’t need. The MTK packet user’s manual (79k pdf) provides a list of ASCII packets that you can send to the LS20031 to configure it from within an embedded application.
The GPSFox (1MB zip) Windows application from Locosys displays the serial GPS data in a fancy format, but, unlike the the Mini GPS application, it can’t configure the LS20031 GPS receiver module.