AliciaCrane wrote:mattmiller wrote:It really depends on how/where you want to receive messages from your Pi
Do the messages HAVE to get through or just try to?
Twitter can be quite useful for doing this but there is a fair amount of faffing around to set your Pi up to tweet using Python.
But once you've set it up then its quite flexible and you can use all the features of a Twitter app on your phone to alert you to the messages.
The message must get through, my phone receives it and i can view it. Like normal phone message. What about gsm? I saw many are using sim900 add on but i'm not sure if works 100%.
Finding any solution that works 100% of the time tends to get very expensive and very complex. Managing 99.9% is usually much easier.
At least some 3G dongles can also be used to send SMS messages, but as you want to improve reliability you'll need to be able to check it's got through to the network and then hope they deliver it in a timely manner. Depending on the use case, multiple dongles on different mobile networks may help (if one doesn't have service hopefully one of the others does).
I've seen some use cases where relying on SMS messages alone could have a 50% failure rate, other such use cases might get a 99.99% success rate.