I bought DS1307 RTC but it is 5V so it can't be connected to the Pi. I know it can be modified to use 3.3V by removing 2 resistors. This sensor is different than the adafruit kit so I am not sure which resistors to remove. It also has 2 sets of pins. What are the extra pins for and which should I use and which pins do I remove?

Here is the image of the RTC:

Here you can see the datasheet for the DS1307 RTC.

Hi Junki,

 

I guess you do know we do not have Pi images here.

Anyway, I google for you: DS1307 to 3,3v ?

it was the first result

 

Please see here with picture

 

Cheers

Tido

 

 

Edit: WTF your text is exactly the text from the link I just left - but this is from 2014. I guess the whole post should be deleted !

Edited November 9, 20169 yr by Tido

Edit: WTF your text is exactly the text from the link I just left - but this is from 2014. I guess the whole post should be deleted !

And previous post of this user is the exact copy of this.