A library written in C++ to encode/decode PDU data for GSM modems. Both ASCII 7-bit and UCS-2 16 bit alphabets are supported which mean, in practice, you can send/receive SMS in any language (including emojis).
For GSM modems.
Maintainer: David Henry
This library is compatible with all architectures so you should be able to use it on all the Arduino boards.
To use this library, open the Library Manager in the Arduino IDE and install it from there.