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🕒 2pcs ds3231sn real time clock module, aideepen ds3231 at24c32 iic high precision breakout with improved accuracy for arduino logo

🕒 2PCS DS3231SN Real Time Clock Module, Aideepen DS3231 AT24C32 IIC High Precision Breakout with Improved Accuracy for Arduino Review

8

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Very good

Revainrating 5 out of 5  
Rating 
4.8
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Description of 🕒 2PCS DS3231SN Real Time Clock Module, Aideepen DS3231 AT24C32 IIC High Precision Breakout with Improved Accuracy for Arduino

【Upgraded DS3231SN Chip, Not DS3231"M"】The DS3231SN is the TCXO high stability RTC, acurate time keeping, accurate I2C real-time clock (RTC) module with a temperature-compensated crystal oscillator (TCXO) improving long-term accuracy. RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year. The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Chip temperature sensor comes with an accuracy of ± 3°C. Save time and high precision addition. DS3231 RTC Module also has some other features that extend the system host of additional features and a range of options. The device integrates a very precise digital temperature sensor, through the I2C * interface to access it at the same time. 【Please Must Note:】Because it's not safty to ship the Li Battery via air mail, our DS3231 RTC Modules don't include battery. For battery model, you can choose CR2032 or you can use a rechargeable CR2025, LIR2032. Thanks for your understanding. IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V), cascaded with other IIC device. 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57

Reviews

Global ratings 8
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    6
  • 4
    2
  • 3
    0
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Type of review

Revainrating 5 out of 5

Best RTC I have ever used

Very good build quality and the DS3231SN keeps much better time than other RTC breakout boards I have used. I will use them from now on!

Pros
  • Comfortable
Cons
  • Almost OK

Revainrating 5 out of 5

Convenient battery holder CR2032

I really liked that you can just plug in the CR2032 and not worry about power outages. After a month of battery life, the clock is just a second behind.

Pros
  • Weight
Cons
  • Security

Revainrating 5 out of 5

after 3 months EXACTLY the same as NIST Atomic Slock.

I set this up using UNO and a C# application that also looks at NIST atomic clocks. after 3 months he is still right on the money. I was expecting a lag of 1-2 seconds per month. No ! straight into the money.

Pros
  • This is awesome
Cons
  • Available in white only

Revainrating 5 out of 5

Perfect accurate RTC but check the battery

It seems to be a really high accuracy RTC DS3231SN. Works as expected with standard libraries. The built in EEPROM is a bonus. However, to use a standard lithium coin cell battery you need to remove the resistor as per the previous comments. Other than that, it's great value for money.

Pros
  • Cool
Cons
  • Zero

Revainrating 5 out of 5

Much more accurate than other RTC modules I've used!

Slightly more expensive than some other RTCs, but they use SN series chips and have a much better build quality. I've been running it on battery power for the last week, but every time I turn on the AC adapter it shows the correct time (to the minute, I haven't bothered to track the seconds drift). I highly recommend this real time clock if you have a circuit that you want to set up and forget about for a long time.

Pros
  • 1 year trial
Cons
  • Socket required

Revainrating 4 out of 5

Big. but do NOT use CR2032 battery without modification

Very nicely made device. Comes with a higher DS3231SN chip. BUT. This device is still configured to charge a coin cell battery when you add one. This means you can't use a regular CR2032 battery for backup power without modifying the board. I removed one star as it could damage your devices or even cause a battery fire if you don't report this. See attached photo. The Vcc module is connected to a 5V supply and you can see I am getting 4.8V across the battery terminals. Search the internet to…

Pros
  • Long range
Cons
  • Wait too long

Revainrating 4 out of 5

Good RTC board with some flaws

This is a really good RTC board that works well with most popular Arduino/ESP libraries. It's a higher quality RTC option that's hard to come by, so that's a big plus. There are several annoyances that you must contend with. First is the resistor mentioned above that you need to desolder to avoid exploding the non-rechargeable battery. Really surprising that this isn't mentioned in the list. But it's easy enough to do. You can even just cut it off the board if you want to be a beast at it…

Pros
  • Quality construction
Cons
  • Blunt hardware