DS1302RTC problem....

Other Hardware Sensors
1

I have a problem with my 1302RTC module i bought from DX.com ( this is the module i am using: Recommendations For You - DealeXtreme ) the connections are straightforward. connected +5v and gnd to Arduino UNO. CE/RST to pin 3, Data/IO to pin 4, SCL/Clock to pin 5 and using Henning Karlssen library in the playground. Uploaded the example sketch DS1302_Serial_Easy with IDE 1.04 with no luck. it only reads weird data without day info (xxxxx instead) and yr 2041 with 00.00 time... Later tried the same pde with IDE 022 and managed to update the clock with current date, however it still displays weird data in the serial window as can be seen in the following attached screen capture...

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serial window displays a correct date followed with a weird date line... Also I cannot read the time from IDE 1.0.4 or 1.0.5 ...
Any help will be appreciated...
p.s. I also tried the Matt Sparks library and the sketch in the playground without any library too...

2

read this one - Please help newbie regarding a DS1302 RTC module[Solved] - Sensors - Arduino Forum -

you can try another lib - Arduino Playground - DS1302 -

3

Thx Rob for the response but i have already read that forum topic and some others regarding ds1302rtc, also i have already tried the second link you have proposed, which i mentioned in my post as sketch without library... I couldnt find a solution by searching forums and Googling and that is why i am asking for help here... thx anyway for your kind response...
Dincer

4

1302 was challenging for me.

http://www.henningkarlsen.com/electronics/library.php?id=5

It took a lot of time to come up with a solution but the link above seemed to work.

5

Hello, I have been looking for the answer all the afternoon, and finally I have reach the solution :
Keep de battery on, but you will have to unplug de Vcc wire from the arduino to the RTC, then IT WORKS.