Re: Micronta Talking Alarm Clock Full Recap
Conventional clock IC's relied completely upon 50/60Hz mains AC reference for timekeeping. Of course this does not work if a power failure occurs, as well as the alarm resetting to 12:00 blink blink blink and you will be late for work lol.
This Micronta is using (the first ever) low cost TI MCU TMS1100 and note there is no quartz crystal. That means for battery backup (7 of AA batteries) it runs off a sloppy RC oscillator but otherwise uses mains for timekeeping. Battery backup was needed because of the hassle setting date/time and other parameters so this was an early clock to have battery backup.
I could not download the VoxClock 3 (Cat. 63-906) owners manual manual and schematic here
https://dokumen.tips/documents/micro...06.html?page=1 and it's on ScribeD as well, but you can see the MCU gets AC ref fed into it so it used mains for timekeeping.
Conventional clock IC's relied completely upon 50/60Hz mains AC reference for timekeeping. Of course this does not work if a power failure occurs, as well as the alarm resetting to 12:00 blink blink blink and you will be late for work lol.
This Micronta is using (the first ever) low cost TI MCU TMS1100 and note there is no quartz crystal. That means for battery backup (7 of AA batteries) it runs off a sloppy RC oscillator but otherwise uses mains for timekeeping. Battery backup was needed because of the hassle setting date/time and other parameters so this was an early clock to have battery backup.
I could not download the VoxClock 3 (Cat. 63-906) owners manual manual and schematic here
https://dokumen.tips/documents/micro...06.html?page=1 and it's on ScribeD as well, but you can see the MCU gets AC ref fed into it so it used mains for timekeeping.
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