I am currently working on a device that logs incoming phone calls, and sends data to me via text message. I am using a Seeeduino Stalker v2.3 and a SIM 900 GPRS Shield v1.4.
One of the reasons I use the Stalker is because of it's nifty onboard Real Time Clock, which works great. I've also mastered controlling the GPRS Shield pretty well.
Yesterday I was unpleasantly surprised when I tried to use the two simultaneously. The GPRS Shield somehow prevents I2C communication with the RTC.
So I did some reading, and the only (relatively) clear guidance I could find was here:http://www.seeedstudio.com/depot/seeeduino-stalker-v2-p-727.html?pages=3&cPath=80&r_q=q
( 2nd question from the bottom )
Here they claim I can simply cut the SDA and SCL pins, and it will sort out the problem. Apparently the shield doesn't use these pins at all. Is this true?
Before I perform irreversible surgery on my GPRS Shield, I'd like to have some more experienced opinions.
My Stalker and Shield are both newer versions than mentioned in the above website.
So, should I cut those pins?