If you have your system connected to the internet click the link in my previous message go through sign up for the accounts and you should be sending yourself SMS messages within 15 minutes and not have to pay GSM access with your shield.
It is extremely easy, I was sending myself alerts within 15 minutes following the directions and providers shown in the link, give it a try.
Hi, I tried using the link you sent, but I didn't get it to work. I think it has something to do with that I don't use a wifi shield but the esp8266 wifi tranciever, and I don't know how to change the sketch to use this instead of a wifi shield.
The Temboo and Twilio accounts are in order, and I verified the number, set it up and got a sketch, but I also got an error when I tried the URL saying something about a FROM number....