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Arduino Compatible Tiny I2C RTC DS1307 AT24C32 Real Time Clock RTC Module ↓ details & specifications
$1.06
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Electronic Components
Architecture Arduino
PCB Size 27*28 mm
Signaling Type I2C
Package
Package Type OEM
Package Contents 1*Module, 1*CR2023 Battery
Dimensions us | metric
Depth 27 mm
Height 6 mm
Width 28 mm
Product Weight 6 g
FastTech
SKU 1012004
DATE LISTED 10/2/2012
Details:
  • I2C interface
  • DS1307 based RTC with LIR2032 backup battery (battery included)
  • AT24C32 32K I2C EEPROM
  • Weight:6.3g(include Battery) 
Commonly Asked Questions:

Q1. Why are these called "Arduino Compatible"?
A1. The Arduino group demanded us to remove their logos and rename these products so that they do not lead customers to believe they are the same units sold by Arduino.
 
Q2. Are these real Arduino's, then?
A2. We cannot answer that question without starting a war :(. Officially, the answer is we do not know.
 
Q3. Are these 100% compatible with the "normal" Arudino's?
A3. Yes, they really are completely compatible with "normal" Arduino's. Build quality looks the same and everything (studio, library, tools, etc) just works. Just read the reviews here, here, here, and here.
 
Q4. What if I'm still concerned about the missing logos and about this being named as "Arduino Compatible"?
A4. If you're still in doubt, please buy from Arduino's official dealers. Yes they are more expensive, but if you're still worried we'd rather not take your order. We do not make these afterall and we are providing all the information we know. Don't kill the messenger.
Questions?

We'd love to help! Contact Customer Advocates.

This item is covered by FastTech's Standard Return Policy:
100% Satisfaction Guaranteed

Return for refund within: 45 days (details)
Return for replacement within: 6 months (details)

No restocking fee. Shipping charges may apply if returns are not results of FastTech's error.

Important information and restrictions:
  • Because this product contains batteries, it can only be shipped via select shipping methods. These shipping methods are displayed when you check out the order.
  • DIY products and modules (if applicable) cannot be returned or exchanged once soldered or otherwise modified.
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beber888
Member

VERIFIED OWNER
  • JoinedNov 2013
  • Posts 0
  • Reviews 4
  • Kudos0
Overall
› Quality
› Value
0 of 1 people found the following review helpful
I've test this module, I had some problem with the clock and Memory. After some test I found that: DS1307 (RTC and RAM) is on 0x68 I2C adress AT24C32 EEPROM is on 0x50 I2C adress So be aware to the ad... (read full review)
Reviewed on 11/15/2016 Was this review helpful to you? Yes / No

mcscoder
Member

VERIFIED OWNER
  • JoinedJun 2014
  • Posts 16
  • Reviews 35
  • Kudos21
Overall
› Quality
› Value
PROS
good quality
great quality board for the price, worked first time connected and have not had any issues.
Reviewed on 4/13/2015 Was this review helpful to you? Yes / No

ptjaPL
Member

VERIFIED OWNER
  • JoinedFeb 2013
  • Posts 13
  • Reviews 3
  • Kudos0
Overall
› Quality
› Value
PROS
EEPROM
CONS
Completely unreliable.
I suspect that it is vulnerable to power or signal line random signal changes. Even in the case of cut off the power of arduino board for a moment - the time completely changes to some random value. ... (read full review)
Reviewed on 10/2/2014 Was this review helpful to you? Yes / No

ModifiedHell
Member
  • JoinedMay 2013
  • Posts 34
  • Reviews 10
  • Kudos9
Overall
› Quality
› Value
1 of 2 people found the following review helpful
PROS
Rechargeable battery, good soldering, nice size
CONS
Loses minutes per day
I have tried this clock on an arduino uno, mega, nano, etc. It is TERRIBLE! Does not keep accurate time and, I have confirmed this when powered by the USB buss of my computers, a 9v battery, and 6 A... (read full review)
Reviewed on 6/21/2013 Was this review helpful to you? Yes / No
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Title Last Posted By
Dangerous module
› started by olbuyer on 3/1/2017 6:00:11 PM
Replies: 1
Views: 234
Game_Cat
Mar 1