DS1302 Real Time Clock Module with Battery CR2032

SKU: 126453 (Added on -)
Price:
US$
2.40
33% OFF
List Price: US$3.60
Shipping: Free Shipping To UNITED STATES
Dispatch:
Ships within 7-10 business days
Direct: Worldwide US
DS1302 Real Time Clock Module with Battery CR2032
This SKU 126453 is available in US direct. US: 901126453
- Color: Black + green
- Material: FR-I
- DS1302 main performance index
- The real time clock has the ability of calculating prior to the 2100 second, minute, hour, day, week, month, year, and the ability to adjust a leap year
- Wide working voltage: 2.0~5.5 V
- When The working voltage is 2.0V, the current is less than 300nA
- Read/write clock or RAM data have two transmission way: Single-byte / many bytes group
- 8 feet DIP assembly or optional 8 feet SOIC encapsulation according to surface assembly
- Simple 3 line interface

Dimensions: 1.77 in x 0.91 in x 0.39 in (4.5 cm x 2.3 cm x 1.0 cm)
Weight: 0.32 oz (9 g)

All packages from DX.com are sent without DX logo or any information indicating DX.com. Due to package variations from suppliers, the product packaging customers receive may be different from the images displayed.

To enable volume discounts on this site, use coupon code: BULKRATE during checkout. You will see a discount applied at the bottom of the shopping cart. Competitive pricing is available. Contact us for details.

Quantity 3+ units 5+ units 10+ units
Rate USD$ 2.13 shipped USD$ 2.12 shipped USD$ 2.11 shipped

What is Bulk Rate? BulkRate is a semi-wholesale system with items priced separately from retail. When you use bulk rates, a flat $1.70 registered air mail fee will automatically be added to your cart to ensure delivery of package. While BulkRate's intention is to offer cheaper prices when you buy in bulk, because it is priced separately it on occassions show a higher than retail price. That's why we ask you to enter BULKRATE as a coupon code to manually activate the rates. You can always opt not to use the bulk rates. If you are looking for wholesale prices please feel free to contact us.

Looking to get even more?
Try VolumeRate - Gadgets Wholesale Or Contact Us Directly

Customer Photos

Customer Videos

Customer Reviews

Average Customer Review (18 customer reviews) 5

100% of customers would recommend this product to a friend (18 out of 18)

  • 5 star: 14 (0%)
  • 4 star: 4 (0%)
  • 3 star: 0 (0%)
  • 2 star: 0 (0%)
  • 1 star: 0 (0%)

Share your thoughts and get DX points!

  • good for the price

    posted by marcelo123 on 20:30:12 G1T 21/01/2014 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: Very good for the price. Works fine with mi Arduino nano. Arrived in good conditions..

    Cons: Hello, I have been looking for the answer all the afternoon, and finally I have reach the solution of the issue that the date of the time ( using library ds1302 ) was bad some times : Keep de battery on, connect all the wire BUT not the Vcc wire from the arduino to the RTC, ...then IT WORKS.

    Other: Once solved the problem ( see Cons ) it worked fine. Nice for your proyects with Arduino. I used de ds1302 library : http://www.henningkarlsen.com/electronics/library.php?id=5 That was the best library I found. You have to copy the directory DS1302 on the library directory of your Arduino IDE ( I used version 1.0.5 ). There is a examples directory with several examples. The only change you have to do are de PINs, depending on the ones that you have conected to de RTC. One aditional observation : The RST pin is the CE pin used in the code.

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      4
    • Usefulness:
      5
  • Nice RTC module.

    posted by zack247 on 14:09:22 G11T 09/11/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: Seems to work great, once I found the code online to use it with my arduino I tested it out and it worked without a hitch. It accepted all of the commands, and the time keeping seems accurate.

    Cons: It can take a little bit of reading to understand some codes for this chip. Once you understand the coding you can cut out the parts you don't need and will be left with the parts of the code you need. It is also difficult to use with a breadboard, it'd be better if the pin header was on the other side of the board, since with the way it is, I have to unclip a power rail and put the RTC module on the edge of the breadboard.

    Other: Buy it if you need a cheap RTC. you won't regret it!

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      3
    • Usefulness:
      5
  • A great product

    posted by elozed on 18:37:10 G9T 20/09/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: This is really a great product for a real-time clock/calendar application. works out of the box. The datasheet for the IC is available online; if you have the tools, you are ready to write and read time in no time. If you want to expand, you can add an LCD and have time and date displayed on it.

    Cons: nothing to say here, you get what you pay for. I did not check long term accuracy.

    Other: If you are looking for a time/date product that works, you can buy this SKU and you won't regret it!!

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      5
    • Usefulness:
      5
  • Works perfectly w/ Arduino UNO R3

    posted by fbaptiste on 23:30:37 G5T 16/05/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: Works perfectly w/ an Arduino UNO R3 @ 5V. Very simple board with the DS1302, a crystal and a battery. Perfect. Great price. Item came relatively quickly considering it shipped from the other side of the world almost.

    Cons: None I can think of.

    Other: Is exactly what it says it is and works perfectly with Arduino UNO @ 5V.

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      5
    • Usefulness:
      5
  • A clock for Arduino os RaspberryPI

    posted by 0xFBi on 00:27:21 G5T 10/05/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: The board is very simple but with some good choices: the battery is not soldered but in a battery socket and the chip is on a socket too. The working chip is well documented in the productor site. The PCB is good, fiberglass based and with 4 holes to fix the board in any way.

    Cons: The RTC board arrives without cables. Maybe it should be better to fix the crystal with a drop of glue.

    Other: Essential for every board without an internal clock.

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      4
    • Price:
      4
    • Quality:
      4
    • Ease of use:
      4
    • Usefulness:
      5
  • works fine

    posted by insane2k on 18:09:11 G4T 12/04/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: works great, mounting holes, keeps time when disconnected. has gained or lost time in a month (ie its keeping proper time). i found a DS1302 library that works well at; http://www.henningkarlsen.com/electronics/ note that code ref -> device pin is as follows; CE pin -> RST I/O pin -> DAT SCLK pin -> CLK

    Cons: careful of the wire length, long thin wires causes it to read wrong (bad date, skipping reads etc) i didnt use any resistors to fix.

    Other: works, cheap, keep the wires short.

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      4
    • Usefulness:
      5
  • Good piece

    posted by SSlit on 06:55:07 G4T 12/04/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: Easy to plug-in into breadboard. Nice piece of hardware. There are different datasheets to understand how to talk to DS1302. http://www.chipfind.ru/datasheet/pdf/dallas/ds1302.pdf I have driven mine via PIC12f675. Always accurate time and calendar for your project.

    Cons: Might be cheaper. Really. In my location for similar price i can buy the same, but not soldered onto neat small board ready to go.

    Other: OK

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      4
    • Quality:
      5
    • Ease of use:
      5
    • Usefulness:
      5
  • Works good.

    posted by Eridanos on 16:12:55 G3T 29/03/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: Gives exact time and sends it to the arduino board I use. Comes with a battery. Small form with four mounting holes are great.

    Cons: It was not easy getting it to work properly in the beginning. I figured out in order to set the time it must work on the battery and not via the 5 volt power port. Could have included 5 wire ribbon wires but for that price I understand.

    Other: Just if you want to have a time-stamp in your arduino data sets this is a great piece of electronics.

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      4
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      3
    • Usefulness:
      4
  • Very useful for Arduino projects

    posted by korole on 15:36:33 G3T 21/03/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: It's been delivered in good condition and well packed after 4 weeks into Ukraine. Easy to use based on a lot of example in the net. It can be accompanied with other modules and parts from this site. It's safe to buy on this site as soon as it's protected by PayPal in my case. Every step from ordering to delivery tracks by e-mails. Additionally you will be provided by tracking code that valid in target country as well. Moreover the package has been delivered right to the my door in spite of free delivery. The module is very useful for my Arduino projects.

    Cons: nothing to say

    Other: I could not find any cheaper place than here. Just get your board with good quality for your DIY projects for that money.

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      5
    • Price:
      5
    • Quality:
      5
    • Ease of use:
      3
    • Usefulness:
      5
  • This does not work?

    posted by karikorpi on 11:27:38 G3T 11/03/2013 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: Cheap. Simple as that. Easy to connect to your own projects.

    Cons: Did not work when I got this. I switched to a brand new DS1302 chip, and then works ok!

    Other: -

    Share to facebook Comments Was this review helpful? Yes No
    • Overall
      4
    • Price:
      3
    • Quality:
      1
    • Ease of use:
      5
    • Usefulness:
      5
showing latest 10 entries. Click here to read all 18 reviews.

Discussions

Post a new topic

Please note that DealExtreme Forums are not a sales or product support board. For support questions, please contact us via support ticket at http://services.dx.com/ for a guaranteed response. We make every effort to make the quickest replies.

Tags of this product

Add your tags:

Your last viewed items

Recommendations Based On Your Recent History

WHY CHOOSE DX.COM?

Get great weekly deals and offers like: Collections