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    [Discussion] Share your projects

    Scheduled Pinned Locked Moved Suunto Plus Development
    discussionpeer-support
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    • G Offline
      guderaber
      last edited by guderaber

      Hey!

      First of all really thankful for this initiative, i had a project in my mind for years and two months ago applied for suunto api development, so i was really suprised and thankful that you’ve released the edit.

      So my project:

      I’m outdoor climber, and the type of guy that is too lazy to watch the climbing route topo image (visual map, either photo or drawn of the climbing route, with rock and climbing features) on the phone (and sometimes i do not want, as im afraid to drop it) and with the current generation of watches with nice , hi-res amoled screens ot would be game-changer feature on the watches if i could sync these topo’s with my watch and see it during climb, navigate on it like on the maps (or if altitude info is encoded on the topo, then maybe auto scrolling based on sensor data.)

      So with the editor i spent a weekend and good amount of claude code tokens on developing this, and it start to get in shape (for now only ran it on simulation).

      So currently i have 2 version:

      • the more realistic: using drawn topo (basically drawn line + topo features as predetermined shapes. The topo can be represented as a json with feature + coordinate info and the watch draws the topo based on that. I also made a website to be able to edit and export these climbing topos
      • the less realistic but would be also nice: uploading a climbing wall image as png, this works as well but for now i bake in the png into the source code.
        Screenshot 2026-03-17 at 12.43.23.png Screenshot 2026-03-17 at 12.43.46.png Screenshot 2026-03-17 at 12.44.13.png Screenshot 2026-03-17 at 12.44.36.png

      Im still working on the sync (most probably the topo can be exported as a json, and added on the app. Also never run on my watch, so might be surprises for me.

      So do you have any recommendations, critique or ideas regarding this? I would be happy to hear it

      S U Nikolai SimonovN 3 Replies Last reply Reply Quote 10
      • herlasH Offline
        herlas Silver Members @mcindr
        last edited by

        @mcindr no need for this, next update will finally addressed it the proper way 😉

        SRS Ti
        SRun (primarily road runner so testing SRun is a must ;))
        A3P (drill mode for pool swimming 🤦🤷)
        Galaxy Z Flip 3 / Galaxy S24+

        M 1 Reply Last reply Reply Quote 0
        • M Offline
          mcindr @herlas
          last edited by

          @herlas Thanks for your answer. But this update will be sure not for my S9 😞

          1 Reply Last reply Reply Quote 1
          • M Offline
            Maurice B. Madoff
            last edited by

            Hi everyone,

            I’d like to share a small project I’ve been building with some friends for SuuntoPlus: SportPet.

            The idea is to turn training intensity into a simple virtual pet mechanic on the watch. During an activity, the app reads the current heart rate and HR zones, and the pet gains growth points based on the active zone. Higher intensity means a higher multiplier, so the pet evolves faster when you train harder.

            Here you can see how the pet evolves from an egg into a living thing:
            ev1.jpg
            ev2.jpg

            Right now the project has:

            • a main pet view with animation
            • an HR stats view showing current heart rate, active zone, and current multiplier
            • a stats/debug view for tracking weekly progress and evolution state

            The basic concept is already working, and we’ve been testing the logic and UI flow on the watch/editor side. The current focus is making the progression feel rewarding while still keeping the UI simple enough for quick glances during exercise.

            The fun part for us has been exploring how a SuuntoPlus app can add a bit of personality and game-like motivation to training without getting in the way of the workout itself.

            We’d be very happy to hear feedback:

            Does the “tamagotchi” idea sound fun or useful?
            What kind of pet/progression feedback would you want to see on the watch screen?
            What kind of daily missions would you like to gain extra points? And would the target be minutes or kilometers?

            Thanks to the Suunto team for opening this up. It has been a really fun project to build.

            1 Reply Last reply Reply Quote 4
            • S Away
              SuuntoPartnerTeam @guderaber
              last edited by

              @guderaber Great looking work by you and Claude 😮

              i spent a weekend and good amount of claude code tokens on developing this, and it start to get in shape (for now only ran it on simulation)

              It should be noted that (1) your powerful PC will happily chug along while running a demanding application which might take down multiple watches (2) Claude may be writing code which the watch doesn’t understand.

              That is to say, it is highly recommended to deploy sooner rather than later with these ambitious projects!

              1 Reply Last reply Reply Quote 0
              • U Offline
                Unpaired8373 @guderaber
                last edited by

                @guderaber I am working on something similar:screenshot.png

                The scaling and scrolling is not yet working as intended and it is missing a “height in pitch” display as well as highlight of the current pitch but it is getting somewhere.

                Have you figured out a way yet to copy topo data from a device to the watch without rebuilding the app?

                1 Reply Last reply Reply Quote 0
                • Nikolai SimonovN Offline
                  Nikolai Simonov @guderaber
                  last edited by

                  @guderaber @unpaired8373

                  Hey guys!

                  Looking at your screenshots, Your projects looks really ambitios, I want to give you a heads-up on a few technical constraints:

                  • First off, remember that you don’t have nearly as much memory here as you do in a web browser (suuntoPlus simulator).

                  • For topographic maps, we usually rely on specific symbols. I highly recommend looking into the spritemap technique for this.

                  • There is no any sync api. If you want to upload information (like routes), your probably go into the Settings API, which allows you to pass a string. data from suunto app settings.
                    However, the string length is limited and you probably run out of memory if you try to put whole json in the settings, so you’ll need to design an efficient encoding protocol maybe try treating the string as a binary array…

                  • On Suunto watches, the Canvas API is heavily restricted.

                    • there’s about 50 draw calls.
                    • also not a full-fledged AP, e.g there is no drawImage method.

                    which means you won’t be able to render images directly onto the canvas. worries not it could be bypass by layout layering technics, probably.

                  don’t want to say it’s impossible but it could be a challenging!

                  Suunto Race 2 Ti
                  Suunto Race
                  Suunto 9 Baro

                  Suunto Aqua
                  Suunto Wings

                  surfboomerangS U 2 Replies Last reply Reply Quote 0
                  • surfboomerangS Offline
                    surfboomerang @Nikolai Simonov
                    last edited by

                    @Nikolai-Simonov said in [Discussion] Share your projects:

                    First off, remember that you don’t have nearly as much memory here as you do in a web browser (suuntoPlus simulator).

                    Check! Found that out the hard way 😄
                    Project worked fine in the simulator but totally crashed my watch upon field testing. I was surprised that it not only crashed the app, but the watch as a whole. The watch totally hang.

                    Is it known how much memory each watch type has?

                    Suunto Vertical Titanium Solar
                    OnePlus Nord 4

                    1 Reply Last reply Reply Quote 0
                    • U Offline
                      Unpaired8373 @Nikolai Simonov
                      last edited by

                      @Nikolai-Simonov Thanks for the suggestions.

                      I have a first draft of a (hopefully) efficient encoding for the route data to get it onto the watch and not consume all the memory at once. Is the settings API the only way to get data into the watch? I saw something in the BLE methods that sounded like the watch could pair to a phone acting as BLE peripheral and offering data via characteristics.

                      there’s about 50 draw calls.

                      what exactly do you mean by that? Only 50 functions or only 50 calls before everything goes sideways?

                      Nikolai SimonovN 1 Reply Last reply Reply Quote 0
                      • Nikolai SimonovN Offline
                        Nikolai Simonov @Unpaired8373
                        last edited by

                        @Unpaired8373 said in [Discussion] Share your projects:

                        I saw something in the BLE methods that sounded like the watch could pair to a phone acting as BLE peripheral and offering data via characteristics.

                        yes it as LiveTracking app exactly working, however i believe it’s much more drawbacks then wins. 1. you lost connection with the main suunto app, it’s really annoying for users. 2. the mtu so small payload ~20B to sync smth complex you need to orchestrate queue etc. and keep in mind memalloc on every step. 3. what if you lost packet int the middle?.. etc. I personally think encoding to string and copy - paste to setting is much more convenient way for this purpose.

                        @Unpaired8373 said in [Discussion] Share your projects:

                        what exactly do you mean by that? Only 50 functions or only 50 calls before everything goes sideways?

                        So, i faced up this behaviour in parkrun QR app, that canvas just became black after around 50th call on canvas it became black. to be honest it solving relativelly easy via 9patch tehnique

                        Suunto Race 2 Ti
                        Suunto Race
                        Suunto 9 Baro

                        Suunto Aqua
                        Suunto Wings

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