Modding a Casio with 3rd Party Motherboard and Firmware
I ran across this post on Hacker News, linking to John Graham-Cumming's blog, detailing how he replaced the motherboard and firmware on his Casio F-91W. https://blog.jgc.org/2022/10/pimping-my-casio-with-oddly-specific.html
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Two things I have little confidence in are soldering miniature components and programming.
Hold up, are they saying that I can get a F-91W to somehow indicate moon phase? Take my money now! How do I get that done?
Here’s a link to the Hacker News comments
Two things I have little confidence in are soldering miniature components and programming.
Hold up, are they saying that I can get a F-91W to somehow indicate moon phase? Take my money now! How do I get that done?
That's not the only crazy thing it can do. Here's the full list (some need a little more work than others, but they're all possible): https://joeycastillo.github.io/Sensor-Watch-Documentation/firmware/prebuilt.html#movement-standard
I'm about to start a dream F-91W thread. Mine has moonphase, the improved backlight (LED swap), and the countdown timer. The sunrise/sunset is nice too but I can't get greedy.
I'm about to start a dream F-91W thread. Mine has moonphase, the improved backlight (LED swap), and the countdown timer. The sunrise/sunset is nice too but I can't get greedy.
I go out for a walk every morning, so I'm very interested in knowing when it gets to be light outside; i.e., the various forms of twilight (civil, nautical, astronomical), which precede sunrise.
I really want to buy a F-91W now just on try my hand at modding my first watch.