Could My DS1032 Circuit be Burned?

Projects General Guidance
1

Hello everyone! I am quite new to Arduino.

I was trying to build a project using the DS1032 RTC module. But while trying to set it up, I accidentally reverse connected GND and VCC to the board. It took a while for me to notice my mistake.

Later on, I connected the RTC to board correctly. Used an UNO, connected CLK to 5, DAT to 4 and RST to 2 according to this guide. It did not gave any errors when I uploaded the code, but the results were not what I could have expected.

Here is the Serial Output:

compiled: Aug 26 202309:39:56
08/26/2023 09:39:56
RTC is newer than compile time. (this is expected)
10/23/2099 00:32:49
10/23/2099 00:32:54
10/23/2099 00:32:59
...

So, I am pretty sure this date is wrong. It seems like there is a problem writing data to DS1032.

By the way, the code that I used to setup the RTC is already in the guide that I linked, so I am not going to post it here, too.

So, overall, I fear that I might have burned out the circuit a little bit. The battery is full, connections look okay, I don't know what else could cause this.

Any help is appreciated.

2

Show your full code in code brackets and a schematic of connections (no fritzing) and a copy of any compile errors (again in code brackets)

3

That is usually the death of the chip. Often devices limp on, appearing to function correctly, but quickly start causing problems by randomly malfunctioning. This in turn causes problems as the developer starts looking for the problem in the wrong place, having been fooled into thinking the hardware is ok.

You could continue to use the device, but I would suggest either replacing the actual DS1032 chip or replacing the whole module.

4

Yeah, that is unfortunate. I think the Arduino board at least has protection, right? I remember the board was unfunctional when the reverse connection was in place. I was pretty confident that I connected all the pins correctly, and even checked it twice before plugging the board to my PC. Well, mistakes happen I guess. I'll probably go with replacing the whole module as it's just really cheap and I don't want to risk more failures.

5

No.

The only protection that there is is a fuse to prevent you from blowing up your computer.

6

Hmm, this is something, I guess.
But I don't think reverse connecting the DS1302 can damage the board, right? After all, the current originated from the board, and completed its cycle in the board. But in the process, reverse polarity of the connection burned up the RTC module.

7

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