Hi!
I am trying to make a gps tracker for skiing. I wanted to be able to program in my course or what paths I am going to take, and then have it guide me by playing a recording of "straight", "left", or "right" when I get to an intersection. It could use Arduino, esp, sim, anything : .
Here's my ideas:
It would be two separate things. A base station that is close enough to the lodge to connect to WiFi so it could use the Blynk app to display data or get the correct course. And a tracker on the person that has a SD card for the recordings, an audio jack for headphones, an Atmega328, gps, and ra-02. They would communicate via ra-02(Lora).
If there's anything that I could do better or differently, please let me now.
I also can't figure out how I would program for that type of tracking . To be able to select a route down the mountain, and then have it tell me which way to go at intersections. I am using Killington, VT or Pico, VT.
I’m sorry to say ....I think that is a bit ambitious , probably too ambitious for anything Arduino based or the average person without lots of experience .
You could get a handle on it by just trying a part of it - such as the gps tracking part .
Me .. I’m trying to find a sketch for a time machine , don’t even mind if it has be be for a mega .
you might be able to use a personal
Hiking gps unit to set a course and follow it , but I’d think that too slow for skiing , and don’t forget accurate location takes extended time .( car gps uses clever tricks like snapping to the map )
Hi.
I have a moderate amount of experience with electronic assemble and GPS. Lots and lots with Arduino. I know how to program Lora but haven't used one yet. not much about radio frequency stuff.
Probably the first thing to establish is what LoRa settings, and thus data rate, you can in practice use to give you the range you want with the antennas you can use, in the actual environments where the device will be used.
In general with LoRa the slower the data rate, the longer the range, but a low data, whilst providing longer range, may not give you the refresh\update rate you need whilst at the same time keeping duty cycle within legal limits.
Not a lot of point designing a system that wont give you the range you want or exceeds legal restrictions.
I was just thinking of sending gps coordinates from the tracker and just a 0 or 1 value from the receiver. I need it to be able to work over a distance of at least 10,500 feet. I looked up Ra-02 and got that it could send up to 10km (32,808 feet). I do need the data to be sent at least once per second though.
kgray9:
I was just thinking of sending gps coordinates from the tracker and just a 0 or 1 value from the receiver. I need it to be able to work over a distance of at least 10,500 feet. I looked up Ra-02 and got that it could send up to 10km (32,808 feet). I do need the data to be sent at least once per second though.
Unfortunatly, the distances LoRa will work over are entirely dependant on the environement, just ignore claims that manufacturers make.
In the right conditions that Ra-02 would be capable of 1000km and in other conditions the exact same hardware might only get 300m, hence my comment to test "in the actual environments where the device will be used"
Given the environment where sking normally takes place, if you wanted GPS co-ordinates updated at once a second, you might need to operate at 100% duty cycle but the legal limit for ISM band use is normally 1% to 10%.
Would once a minute work? It definitely sounds like my original idea won't work. Is there anything else I could use to do almost the same thing? Like SIM9000 (cellular)?
You don't need a base station and radio to follow a GPS course, just a GPS unit and a set of waypoints, which you can select from on line maps. An Arduino with GPS module could replace the separate GPS unit, or use a cell phone with GaiaGPS.
Hi,
GaiaGPS works but not for what I want it for. I have gps modules coming in the mail now so I can’t work on it immediately. I’ll start with what you suggested though when they arrive.
Very interesting project. Probably many paths to do it.
I've built a GPS speedo for my car. Around town it displays my speed. On country trips I pair it with my phone. I built an app using MIT App Inventor that checks the speed given by the GPS against the speed limits for the route I'm on. The phone app announces when I arrive at a new speed zone and announces when I am over the speed limit for the current zone. Works well.
This took me a year from the idea to a good stable device. Many dead-end side tracks.
Next complicated project like this that I take on, I will spend much much more time in thinking all the problems through rather than suck it and see. I bet your final product will be way different from your initial ideas.
I only have to check the latitude or longitude against that of the speed signs stored in the app -- latitude if the route is east-west, longitude if it is north-south. You will need to monitor both. I allow for driving in either direction along the route. You won't need to do that as you can only go downhill.
I hope your safety doesn't depend on the device working perfectly, cos it won't.
Why do you think the device you would be carrying would not be able to manage the way point detection?
.
. To be able to select a route down the mountain, and then have it tell me which way to go at intersections. I am using Killington, VT or Pico, VT.
!!!!