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Geocaching

6 Posts authored by: bobalexander
If you want to use your GPS for more real time applications or for doing some software accuracy improvement you will most likely need a higher output speed. To get a higher output speed from the L80 GPS module you need to increase the rate/frequency. The default is 1Hz or 1 PPS (pulse per second - for timing applications). This gives you 1 NMEA coordinate sentence per second (GPGLL - Lat/Lon). All of these echo commands are performed from the Linux shell/bash prompt. First, Set Baud Rate To b ...
Raspberry Pi Geocaching System (Pi Hiker) Author: Bob Alexander A kid friendly, high accuracy geocaching platform. Accuracy of the GPS location could be improved by putting the L80 into 10Hz mode and then performing an averaging and filtering function such as outlined in this paper:           An Effective Approach to Improving Low-Cost GPS Positioning Accuracy in Real-Time Navigation With the addition of a magnetometer, a direction indicator cou ...
I was thinking this little kit might make an excellent ground station for my model aircraft. I have a little 900MHz telemetry system that could be connected over serial to the Pi and I should be able to use the Pi to send commands to the UAV...   What kind of features could I add with this? Maybe a GPS based antenna tracker, or a simplified control system for changing way points? Simple things like reporting distance to current (or last known) position would be helpful, especially in loc ...
Just a simple Python script to display the location data to the LCD (PiFace CAD): *This is not by any means a clean program - I haven't removed unneeded imports and the display portion includes a counter I was intending to use but haven't implemented yet* *This is just a simple demo to show it is working* #!/usr/bin/env python3 """ Grab data from GPS and spit it out to LCD """ import sys PY3 = sys.version_info[0] >= 3 if not PY3:     print("Please use `python3`.")  &# ...
After a bit of trouble, I was able to get the basic GPS functions working! ┌───────────────────────────────────────────┐┌─────────────────────────────────┐ │    Time:       2015-08-06T02:07:10.000Z   ││PRN:   Elev:  Azim:  SNR:  Used: │ │    Latitude:    3X.650558 N               ││  15    78 & ...
I won a Raspberry Pi 2 GPS kit! My intent is to create a kid friendly, high accuracy geocaching platform that my daughters can use when hiking. Technical specs: Accuracy of the GPS location could be improved by putting the L80 into 10Hz mode and then performing an averaging function such as outlined in this paper:           An Effective Approach to Improving Low-Cost GPS Positioning Accuracy in Real-Time Navigation With the addition of a magneto ...