Building a DIY GPS cube

Originally, [Karman] wanted to build a speedometer for his bike. Feature creep makes fools of us all, so after a month of work [Karman] had a  GPS-enabled cube that tells him his current latitude and longitude, current time, course, direction and speed.

[Karman]’s GPS cube uses a cheap GPS module, Arduino Mini Pro, a magnificent OLED display, and a LiPo battery salvaged from a first gen iPod nano. Surprisingly, the build is very clean – there are no wires, headers, or random epoxy globs sticking out everywhere. The entire build is just a bit larger than one cubic inch, allowing [Karman] to carry around the power of a GPS device in his pocket.

The code for [Karman]’s GPS cube uses the TinyGPS library for Arduino, that has a few great functions that track the number of satellites visible and report the current time. Now all that’s left to do is fabricate a case for this awesome little project. As always, video demo after the break.

26 thoughts on “Building a DIY GPS cube

    1. No but I think that would be easy to code as you already have current date.

      By the now, for example, I’m +1, but for daylight saving we are currently +2, so i just add 1 in timezone setting.

    1. I tought about it. In fact there is still 8k free flash space and pins because I wanted to add it.

      The problem adding microsd would be power comsuption, so yet I haven’t tried.

  1. This would be great for a cat tracker, After reading a few projects of people tracking there cats, I feel like this is purrrrfect :-D. Just need to find a camera solution now

  2. Will it also work with other GPS modules like the popular ST22 ? I got several of these for $20 each at

    I am also wondering if it could adjust the time depending from the time zone you are in. I mean it has the GPS position so it could figure out somehow which timezone it is ?

  3. Nice for more “feature creep”,if licensed, add a TNC along with a transceiver operating on 44.390 MHz. Or a transmit only tracker if one wishes.

  4. WOW this is so cool! now put in a usb-out on that so you can view your stats on your PC (with matching maps to further visualize you position) ^^

  5. The charger conjointly has 2 USB ports that mean if you’ve gotten
    2 devices in want of charging, you don’t want tto wait for oone to finish.
    What this means is always that sound will still only play (whether the product is ringing or else you’re playing
    music) through the headphones, that is great. are dozens aand many accessories manufactured
    to bee used with it.

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