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Data Runner Watch Prototype – Modded Casio F91W

n-o-d-e.net

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Re: Data Runner Watch Prototype – Modded Casio F91W

#41

Post by plutonic »

Erazal wrote: post #21

Wow I'm amazed by the option of adding a chip from a tap to pay card. This would be a lot better than an NFC chip on a standard smartwatch as the F91W could last for years with that chip inside it. The F91W is cheap, and really reliable. I've always fantasized about modding one, and this exactly would be my dream. Sadly, I don't have enough time on my hands. If it were for sale, I'd buy it immediately !

While it does seem useful, I’d be curious of the security implications; does wearing such a thing on your wrist make it easy for others to scan your credentials? I’m not incredibly familiar with NFC chips, but they do seem to have a much shorter range than most regular RFID chips, which seems like it might help. However all anyone would have to do is embed a reader under/in the table you sit at (say, at work or at your local coffee shop). Maybe we can keep the circuit hidden in a faraday cage, such as another (modded) microSD card slot, and just pop out the chip when needed.

Re: Data Runner Watch Prototype – Modded Casio F91W

#44

Post by dugditches »

nimbius wrote: post #26

I used to buy F91W watches all the time. they were fun and practical, but wasteful. the most shameful fact about the F91W isnt its spartan design or its affordable price, but the fact that the timepiece with its ten year battery will easily outlast its resin strap, and its springbars are nothing more than pot steel held into the soft plastic lugs by friction alone. Chances are, when you replace the band after a few y…

There's been a real dip in strap quality. I remember the only thing that would kill one was complete destruction(crushing) or simply losing it.

Ones I've purchased in past 5~ years all have had straps fail. They've clearly switched to cheaper materials.

They made a new model 'W-217H', which is just a larger F91W. I enjoyed the larger face and wouldn't go back to a F91. But the strap too broke a few months after use.

And like you said, with the cheapest of straps being almost the cost of the watch, and there's no guarantee it'll easily fit.

Re: Data Runner Watch Prototype – Modded Casio F91W

#46

Post by sir_brickalot »

nimbius wrote: post #26

I used to buy F91W watches all the time. they were fun and practical, but wasteful. the most shameful fact about the F91W isnt its spartan design or its affordable price, but the fact that the timepiece with its ten year battery will easily outlast its resin strap, and its springbars are nothing more than pot steel held into the soft plastic lugs by friction alone. Chances are, when you replace the band after a few y…

I love that watch. My biggest issue is the unintended button presses by bending the wrist and toggling 24h to AM/PM. Infuriating!

Re: Data Runner Watch Prototype – Modded Casio F91W

#47

Post by remarkEon »

Abishek_Muthian wrote: post #4

Wow, apart from obviously cool project I'm super impressed with the minimalist website design, aesthetics, effort put in the video to match the aesthetics and all without any JS. Either this is the first time I'm visiting this site or I don't remember; But I wonder how they are managing to compete with Node.JS in the search engines with that name. Google doesn't respect even N-O-D-E, where as DDG brings up the site a…

Looks like the whole website is the same aesthetic, and I just spent over an hour going down the list of this guy's projects. Pretty fun.

A highlight: https://n-o-d-e.net/nano_server2.html

Re: Data Runner Watch Prototype – Modded Casio F91W

#48

Post by jdietrich »

plutonic wrote: post #40
rcar wrote: post #32

Earlier quoted context omitted.

I was curious about what "pot steel" was - for anyone else who hadn't encountered it before: https://en.wikipedia.org/wiki/Pot_metal

It’s nice to know all those Casio watches I’ve been wearing for years and years probably have lead exposed on them :/

Modern pot metal alloys are nearly all lead free, partly due to the EU's RoHS regulations and partly because lead is a lot more expensive than zinc.

It's also worth pointing out that metallic lead isn't all that toxic - it's lead compounds that you need to worry about, especially organic compounds.

Re: Data Runner Watch Prototype – Modded Casio F91W

#49

Post by codezero »

johnnycab wrote: post #39
codezero wrote: post #22

Earlier quoted context omitted.

Your wish is almost granted: https://n-o-d-e.shop The link is at the bottom of the site, but it's pretty subtle, and I think these watches have the same mods. Edit: These have NFC, but no SD card, so maybe they will show up with enhanced storage later, but anyone wanting the NFC features with the watch it looks like they are available. Edit Edit: The NFC chip in the ones for sale is not tap-to-pay :( still neat thoug…

It is possible to scavenge the NFC antenna/chip from an Oyster card or indeed any other card, which the author alludes to in their video. There are details floating around on how to do it, by dissolving the card in acetone. However, the relevant authorities might take a dim view of repurposing the transit card in this manner and probably have certain restrictions in place, to deter people from defacing their property…

I follow someone on twitter who explained how to do this at one point, using a Caltrain Clipper card, and put it in a resin ring :)

I could dig that up if it’s helpful but in general I think it’s pretty straight forward, just some risk of destruction :)

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