Search found 3 matches

by floccs
Fri Aug 09, 2013 8:20 am
Forum: RTC
Topic: Tiny RTC DS1307 + 24C32 Real Time Clock Module (HCMODU0011)
Replies: 81
Views: 46559

Re: Tiny RTC DS1307 + 24C32 Real Time Clock Module (HCMODU00

Yes, I've already measured it on the IC (in the image I've measured voltage between pins highlighted in red) with the module disconnected from any power source (other than the module battery) obtaining 2.94V.

Image
by floccs
Thu Aug 08, 2013 3:12 pm
Forum: RTC
Topic: Tiny RTC DS1307 + 24C32 Real Time Clock Module (HCMODU0011)
Replies: 81
Views: 46559

Re: Tiny RTC DS1307 + 24C32 Real Time Clock Module (HCMODU00

Thank you for your answer Andrew. I measured vbat - gnd voltage with the module disconnected and my multimeter says it is 2.94V (same voltage when module connected). The battery itself is 4.1V. Are these values ok? I've reduced my set up to only arduino and Tiny RTC module and it starts acting in an...
by floccs
Thu Aug 08, 2013 9:10 am
Forum: RTC
Topic: Tiny RTC DS1307 + 24C32 Real Time Clock Module (HCMODU0011)
Replies: 81
Views: 46559

Re: Tiny RTC DS1307 + 24C32 Real Time Clock Module (HCMODU00

Hi, I've recently bought a Tiny RTC DS1307 module from your ebay store and I've a problem since the module loses time when I power off Arduino. I've tried with the library (HCRTC) and the example sketch that you have provided and every time I disconnect Arduino from power the time is reset to 1/1/20...