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Questions tagged [real-time-clock]

Quoting Wikipedia:

A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time.

Micro controllers, Android, related assembly (or low-level) code are concepts that usually accompany so make sure you pick the right one.

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How to achieve an RTC alarm more than one month?

For my project I'm using an RV-8564-C2 RTC module. In the datasheet I see that alarm registers up to a month. How do I work it out if I want an alarm after for example 40 days or 2 months?
Ghani
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Is there an Arduino library that can take in a DD/MM/YYYY date and tell me what day of the week it is?

I am making a Clock and I have got all the hardware figured out and I'm working on the software now. I have the exact date of a particular day, but I want the Arduino to be able to convert that into a day of the week. I have had a look online, but I…
Elliot
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ASM 8086 using RTC

I'm not very experienced in asm x8086 for DOSBox, and I'm programming a connect4 game. I've made all the code and it works. I want to implement a "timer" so that each player has 20 seconds to decide their move, if this time happens then the move is…
Skyflyer
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Does clock_gettime() work if clock_settime has not been set?

Does clock_gettime() work if the clock has NOT been set by clock_settime()? I have a situation where repeated calls to clock_gettime() returns the same time value (seconds). I seem to remember that I needed to first set the time with…
Xofo
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