home automation project

Arduino Uno, GSM Shield and Wifi shield…
All these 3 things, can build as one project?
some people says that, GSM and Wifi cannot do it at the same time

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sitirohayu90: Arduino Uno, GSM Shield and Wifi shield.. All these 3 things, can build as one project? some people says that, GSM and Wifi cannot do it at the same time

If you have wifi, why do you need GSM? There are servers whre you can send sms and stuff. GSM I'd use only if Wifi access is not available.

I've done something similar with 915mhz and GSM together. No problems. The GSM shield is turned off until I assert a DO to turn it on. Likewise, I wouldn't ever have the 915mhz radio on while using the GSM. This is sending messages around between parts of my farm, then sending a text to me with the results.

Is the potential problem frequency, available pins, or memory on the board? Memory was the biggest problem I ran into. Had to switch up to a Mega for the board that combined the two radios.

To answer Mart's question, for mine, the farm is 20 miles from home, and there is no wifi out there unless I set it up. Seems like I looked at Wifi but the range was an issue. There are reasons...