Thank you for the info.
I was thinking... a typical led is 360 and gives light in 360 direction. I
was studying the pic and it looks like these leds only give light front and
back, but not sides. Is this true?
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Carl - Excellent article; thanks for posting.
Another possibility is that these chips are salvaged and re-assembled; If
they are overheated during removal/reassembly the crystal could get damaged.
I'm testing one right now for my NIMO clock, and it was manufactured in
2008. I'm certain it's a
I've been curious about those cheap DS3231 chips on ebay for a while.
Ordered some in to test, but never got around to it.
This fellow does an interesting write up for anyone interested.
https://blog.heypete.com/2017/07/29/a-look-inside-the-ds3231-real-time-clock/
carl
Hey Tomasz!
I do have experience with STM32 RTC build-in module and if you will shose
accurate crystal with good capacitors it will pay off. And follow the data
sheet instructions regarding RTC calibration.
On Sat, Sep 8, 2018 at 11:20 AM Tomasz Kowalczyk
wrote:
> Suprisingly, my clock uses a
Suprisingly, my clock uses a counterfeit module and after modding it
(removing charger circuit) it provides accurate time. Of course, this is
not guaranteed with counterfeit chips. But as long as I am building clocks
for myself, I'm going to stick to the cheapo modules from Aliexpress.
