All posts in the 'GPS projects' Category
Posted on 07 Nov 2008
This project combines a GPS receiver module, a Microchip PIC microcontroller and a Secure Digital memory card to make a GPS data logger.The data from the GPS is logged every second with the raw NMEA sentences being written to the SD card. The data written to the card is the GSA, GGA, RMC and GSV sentences which by excluding the carriage returns this should never exceed 512 bytes per second. [more]
Posted on 20 Aug 2008
This is a GPS repeater project.It used to repeat the GPS data.The purpose for the repeater is to allow the GPS to be outside, exposed to the satellite view, and allow the user to see the data below decks at the navigation station.It is intended to connect to Garmin-38 (and similar) hand held GPS receivers that don’t have external antennas.[more]
Posted on 04 Aug 2008
Almost all commercially available GPS OEM modules provide a 1pps output, synchronized with GPS time. This pulse could be used as a reference to generate accurate high-frequency clocks, but special design has to address the short-term jitter affecting the 1pps signal. As a general guideline, an oven-stabilized crystal oscillator who guarantees the short-term stability is synchronized with the GPS 1pps for the long-term accuracy.[more]
Posted on 31 Jul 2008
This example shows how to connect the GPS module to an Arduino board and watch the NMEA sentences.The GPS module for Arduino is a small electronic circuit that allows to connect to your Arduino board to get position and altitude, as well as speed, date and time on UTC (Universal Time Coordinated). It uses the standard NMEA protocol (www.nmea.org) to transmit the position data via serial port. [more]
Posted on 28 Jun 2008
This is a small GPS logger based on the San Jose Navigation FV-M8 GPS module that stores coordinates, altitude, and speed into an EEPROM.Then a software converts EEPROM stored data into .kml (Google Earth format).Altitude and speed graphs are also generated by the software. [more]
