Hiking Tracker

[last updated: 2022-03-15]
GPS module
hiking tracker prototypes
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• On this Page:
  • Concept:
  • Programming/Operation:
  • Issues:
  • Possible Configurations:
  • Links/Refs:

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• Concept:
  a portable (battery-powered) device
  start and stop buttons
  RTC module
  LCD or other readout
  ambiant temperature sensor
  barometric/altitude sensor
  GPS module
  arduino MCU

• Programming/Operation:
  Start button begins tracking.
  Stop button pauses tracking.
  Stop button second time stops tracking.
  When tracking, display will show accumulated mileage and elevation gain.
  Other options:
  Stop button will display miles traveled, elevation climbed, average speed.
  When not tracking, display shows current elevation and temperature.

• Issues:
  • Accelerometers are apparently not capable of giving you distance or speed data,
    because the integration calculations that are necessary have the downside of accumulating errors quickly and destroying accuracy.
  • You must use a GPS to get distance and speed data.
  • GPS gives you longitude and latitude data, which must be converted to distance
    using Haversine great circle calculations.
  • GPS' and barometric sensors can both give you elevation data,
    and while one online source showed they indeed track each other closely,
    there are surely trade-offs to whichever you choose.
    Don't know what those are at this time.

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• Possible Components/Configurations:
  • from: https://create.arduino.cc/projecthub/PSoC_Rocks/hiking-tracker-b45524
    • LM 75B temperature sensor
    • ADXL345 3-axis accelerometer for sensing tilt and gravity
    • DS3231 high-precision RTC clock
    • HMC5883 3-axis magnetic sensor for compass heading
    • BMP180 pressure sensor for sensing atmospheric pressure and altitude
    • MTK3339 GPS sensor for location and calculating distance

  • from: https://www.instructables.com/DIY-GPS-Data-Logger-for-you-next-DriveHiki...

  • from: https://www.hackster.io/ian-etheridge/gps-tracking-system-with-arduino-u...
    • Digilent pmod GPS: https://www.hackster.io/digilent/products/pmod-gps?ref=project-ccee81

  • from: https://www.instructables.com/Geo-Data-Logger-ArduinoGPSSDAccelerometer-...

  • from: https://makersportal.com/blog/2019/9/4/arduino-gps-tracker

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• Other refs:
  • https://arduino.stackexchange.com/questions/22798/can-i-measure-velocity...
  • https://stackoverflow.com/questions/39485141/how-to-calculate-distance-f...
  • https://physics.stackexchange.com/questions/154577/how-to-calculate-spee...
    https://stackoverflow.com/questions/6647314/how-can-i-find-distance-trav...
    https://www.jameco.com/Jameco/workshop/ProductNews/howitworks-drone.html
    https://www.linkedin.com/pulse/how-do-drones-work-part-9-imu-inertial-me...
    https://quadmeup.com/what-sensors-drones-use-to-fly/
    https://courses.grainger.illinois.edu/ece445/getfile.asp?id=19344
    tutorial for adafruit gps module: https://learn.adafruit.com/adafruit-ultimate-gps

    other - search for: measure speed distance with gyroscope for drones

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