2. method - use AT+CMSS command (send message form memory) like implemented here: http://www.riccibitti.com/tinyplanet/tiny_article.htm - very easy and simple way to send predetermined message, can take one line of code in Arduino like: Serial.println("AT+CMSS=1"); // send message which is stored in memory under number 1. It doesn't take any resources or specialized programming skills to send message this way.
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