NFCRing as a paintball marker activation device.


  • Community Helper

    I've been mulling this one over in my head for a little while now. I have paintball markers (all mechanical but I'd consider grabbing an electro just to try this) and am thinking about the possibility of embedding a reader in the grip which will only activate the marker when the authorised person (me, only me, ever!) is holding it or even holding it correctly.
    It should be doable, most of the newer markers are reasonably bulky and the electronics to drive them is relatively compact these days. the frame is alloy yes, but the grips are almost entirely rubber or plastic.
    Anyone got any thoughts on this or suggestions?
    I'd try using it to intercept the trigger line and re-connect it for five minute blocks when it's read a ring for a start. But I'd be interested in seeing if I could set it up so that it will only fire when the authorised ring is present. That would be truly useful.


  • Community Helper

    Yeah, that's where my mind was wandering - better fire modes/rates could probably be achieved with an arduino anyway and it would be an easy thing after that to add in the 'fire only with ring' clause in the sketch.
    For this I'd be wearing a ring on my pinky, it wraps around the right part of the grip for what I'm thinking of. I'll have to pick up an electro or an e-grip for my A5 though.
    Thinking of which, brag moment - Sheridan K-1 long grip short barrel bolt action 15 round mag ported and polished and undershot, Tippmann A5RT w/retractable bipod grip, laser dot, reflex sight, new style flatline barrel.
    The sheridan tends to be double-loaded and back holstered with the A5 as primary. Yay for paintball!



  • hah, that is a pretty cool idea. I don't play paintball much these days anymore, but I still keep my gun around just in case an opportunity ever comes up!

    I think to always have the ring in reading distance, this is a situation where we would want a custom antenna tuned to the ring that could run down the front of the trigger frame since that is where your ring and pinky finger normally sit. Probably also a situation where it would be beneficial to build an attiny directly into a pn532. Also makes me wonder if anyone has tried using an arduino for the trigger instead of the traditional boards.



  • @Lokki

    Yeah, that's where my mind was wandering - better fire modes/rates could probably be achieved with an arduino anyway and it would be an easy thing after that to add in the 'fire only with ring' clause in the sketch.

    :O I used to have a 98 with a flatline barrel! We used to play a lot of large scale games back then, now that I live in Chicago, mostly small courses.

    I never take my trigger out of semi-auto mode anyway, so programming would be quite simple!


  • Community Helper

    @itzdarkoutthere

    :O I used to have a 98 with a flatline barrel! We used to play a lot of large scale games back then, now that I live in Chicago, mostly small courses.

    Aah, nice. It's different in Australia, they're treated as proper firearms so we have to be very careful what we do or how we act with them. On the upside, my wanting to play paintball got me a firearms licence that will allow me to have a nice .45 Rossi Circuit Judge (nickel and walnut, drool).
    Slight legislative failure there when you think about it.
    Adelaide is so very countrified that there are a bunch of big fields within a very short drive from the metro area so it's good, there's a pretty large following here. I reckon I could sell a few people on 'ultra improved safety features'.
    It'd have to count towards disabling the things during transport too, at the moment I have to trigger lock and remove the bolt where applicable whenever I go somewhere. It's very inconvenient.


  • NFC Ring Team

    @Lokki

    I've been mulling this one over in my head for a little while now. I have paintball markers (all mechanical but I'd consider grabbing an electro just to try this) and am thinking about the possibility of embedding a reader in the grip which will only activate the marker when the authorised person (me, only me, ever!) is holding it or even holding it correctly.

    I think Rex who is our guy in the states has said that he thinks this sort of tech is going to be a big selling point for the NFC ring. He was thinking more along the lines as a safety feature for conventional firearms. We don't really do guns in the UK so its something we don't really have to much knowledge about. However if you can get it working i'm deffo up for some community paint balling for "research" purposes :)


  • Community Helper

    @NFCringTom

    I think Rex who is our guy in the states has said that he thinks this sort of tech is going to be a big selling point for the NFC ring. He was thinking more along the lines as a safety feature for conventional firearms. We don't really do guns in the UK so its something we don't really have to much knowledge about. However if you can get it working i'm deffo up for some community paint balling for "research" purposes :)

    Definitely, plus they use paintball markers (heavily modded ones) in police/swat etc training I gather. That would be an interesting application for it, markers only active when the 'owner' has hold of them.
    I'd love to see it as a feature on a conventional firearm, that'd save a lot of heartache.
    You guys should come over here and paintball. Call it a team building exercise vs Lokki. :-)


  • NFC Ring Team

    @Lokki

    [quote="NFCringTom":3d2yzsfz]

    I don't think there would be much team building going on when faced with your machine of paint death.


  • Community Helper

    Thats where the team building comes into it. The team that is painted together etcetera etcetera.

    Besides, it's not scary, it's history!


  • Community Helper

    An old photo of my other baby, pre flatline barrel. This is the one you watch out for.
    Yes, that is a drill press in the kitchen beside the coffee machine.



  • I've done some amateur paintball (hire everything, run out of paint, go broke, buy more anyway, etc ;) -- when you say "markers" is that a euphemism for the paintball gun itself? I'd think a short-term activation period based on a successful read would work -- otherwise you're in a continuous loop of --> nfc_read -> ring_detected -> gun_active --> (repeat).

    Not sure how regular firearms would work -- on loss of battery, do you fail_enable or fail_lock?

    off-topic -- Knowing the tech required to make the guns and what the OMCG have been up to, not surprised there's tight control here in Aust. If law enforcement saw your "other baby" sitting on a table, I think they'd definitely pop the cover on their holster until they confirmed what it was...


  • Community Helper

    Hi @gth, 'marker' is from the origin of the things when they were originally used to throw a paint pellet at a cow and mark it. America!
    In Australia there are so many people who are rabidly anti-everything that it's common to continue referring to them as markers and disassociate them from actual guns. There's a lot of backstory there, and only recently being allowed to have some things at all, like the Tippmann A5 which is still illegal in some states I believe.
    My antique one is illegal in Victoria because it has 'the same profile as a longarm' because the magazine runs alongside the barrel instead of being a clip on hopper.
    On that subject, the reaction when I presented the A5 to be registered at the local police station was exactly that. The female hossifer actually backed away, saying Wtf a lot. It was all a little bit emotional. This because legally I must state my intention, 'officer, I have a firearm in this bag to be registered, may I place it on the bench and open the bag for you?' at which point she is expecting a gun, not a marker and mistakenly sees an MP5 instead of an A5.

    Anyhow, it would need to be fail_lock to be a workable solution for a firearm, otherwise just popping the battery would be enough to bypass it. I'm thinking of something along the lines of a pin that jams the mechanism the someway most safety mechanisms work. Then removal of that for a period when the firearm is held by an authorised ring wearer.
    It would mean that the battery would run down fairly quick and that any issues with the mechanism would render the firearm inoperative until it was repaired, bur I think that's the only realistic way to do it.


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