Brand | DORHEA |
---|---|
Item Weight | 1.44 ounces |
Package Dimensions | 4.29 x 3.07 x 1.38 inches |
Color | 2pcs with battery |
Voltage | 5.5 Volts |
Manufacturer | DORHEA |
ASIN | B09LLMYBM1 |
Country of Origin | China |
Date First Available | May 18, 2022 |
2PCS DS3231 AT24C32 IIC RTC Module Clock Timer Memory Module Beats Replace DS1307 I2C RTC Board with Male to Female Jumper Wire Cable
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | DORHEA |
Memory Speed | 400 KHz |
Compatible Devices | Server |
Special Feature | Lightweight |
Voltage | 5.5 Volts |
About this item
- DS3231 16-pin memory chips - AT24C32 ,extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
- Highly accurate RTC completely manages all timekeeping functions.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping.
- Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.
- Provides two configurable alarm clock and a calendar can be set to a square wave output. Address and data are transferred serially through an I2C bidirectional bus.
- A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a μP reset.
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Product information
Technical Details
Additional Information
Customer Reviews |
4.6 out of 5 stars |
---|---|
Best Sellers Rank | #293 in Computer Memory |
Warranty & Support
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Product Description
Two time-of-day alarms
Operation voltage: 3.3-5.5V
Fast (400kHz) I2C Interface
Memory chips: AT24C32 (storage capacity 32K)
Application: Servers/Telematics/Utility Power Meters/GPS
DS3231 AT24C32 Clock Module Real Time Clock Module IIC RTC Module .
Calendar alarm clock with two programmable square-wave output .
Generating seconds, minutes, hours, day, month and year information.
Wiring instructions :
SCL→A5
SDA→A4
VCC→5V
GND→GND
Package included:
2 X DS3231 AT24C32 IIC module with battery
20 X Female to male cable
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, ease of use, value, and time and date sensor of the internal memory. For example, they mention it works perfectly, is easy to use, and is great value for money. That said, some complain about the quality.
AI-generated from the text of customer reviews
Customers are satisfied with the performance of the internal memory. They mention that it works perfectly on their Raspberry Pi 3 Model B and also works great with Arduino Nano.
"...Works great now and pricing is good..." Read more
"Not sure about longevity since I just installed it, but it works perfectly on my Raspberry Pi 3 Model B Plus." Read more
"DS3231 RTC clock module works without a hitch. I like that it came with a set of jumper wires for fast and easy breadboard use!..." Read more
"...Bottom line — it works fine and is great value where you 2 RTC boards, 2 batteries, and a nice set of colored breadboarding wires." Read more
Customers find the internal memory easy to use. They mention it works great, is plug and play, and has lots of tutorials.
"...I like that it came with a set of jumper wires for fast and easy breadboard use!..." Read more
"Easy to setup and useRequired if you want to run a Pi or Pico with limited or no internet for time updates." Read more
"Easy to get going but don't forget your rechargeable battery." Read more
"Popular clock lots of tutorials..." Read more
Customers appreciate the value of the internal memory. They mention that it works fine and is a great value.
"...Works great now and pricing is good..." Read more
"...Bottom line — it works fine and is great value where you 2 RTC boards, 2 batteries, and a nice set of colored breadboarding wires." Read more
"...4. On the plus side the price is cheap but, well, you know." Read more
"Two for less than one. Decent quality...great price! Worked as expected..." Read more
Customers are satisfied with the time and date sensor. They mention that it is a great product, and it holds the time well enough.
"...power and letting them sit for a while and they do appear to hold time well enough when the RPI boots up again." Read more
"Keeps resetting time..." Read more
"Great Time and Date Sensor..." Read more
Customers are dissatisfied with the quality of the internal memory. They mention that it loses time every time they disconnect the power. The battery does not hold charge and the RTC resets every time the power supply is disconnected.
"I was able to communicate with the module but the RTC lost the time every time I disconnected power. (I used multiple brand-new batteries)...." Read more
"Battery will not hold charge. Resets time every time power supply is disconnected. Whats the point if it cannot do the only job it has." Read more
"Will not retain time...UPDATE..." Read more
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Top reviews from the United States
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UPDATE: I changed some programming things and now the time seems to retain, so probably my error! Works great now and pricing is good...
Got these for use with an Arduino Nano and various LED projects and theyre up to snuff . Will absolutely buy from this seller again.
Reviewed in the United States on February 9, 2020
Got these for use with an Arduino Nano and various LED projects and theyre up to snuff . Will absolutely buy from this seller again.
Took a bit to find a suitable Arduino library. Finally settled on generic RTC3231.
Board has a temperature sensor which is not accurate. It’s off by 2 degrees centigrade. Though this is within the stated error margin of 3 degrees centigrade on Amazon.
Bottom line — it works fine and is great value where you 2 RTC boards, 2 batteries, and a nice set of colored breadboarding wires.
Took a bit to find a suitable Arduino library. Finally settled on generic RTC3231.
Board has a temperature sensor which is not accurate. It’s off by 2 degrees centigrade. Though this is within the stated error margin of 3 degrees centigrade on Amazon.
Bottom line — it works fine and is great value where you 2 RTC boards, 2 batteries, and a nice set of colored breadboarding wires.
Required if you want to run a Pi or Pico with limited or no internet for time updates.