library for GPRS shield with sim900 module.
GSM/GPRS & GPS Shield Library for modules using SIM900/SIM908
GPRS Shield based on SIM900
Connect Arduino to test.mosquitto.org via SIM900 GSM module
An Arduino Client implementation for the SIM900 GPRS module
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Lightweight cellular modem host AT library
GSM Library for the SIM900 chip and the GBoard Arduino GSM development board
Library project for Sim900, Sim800, Sim900A module for Android Things, supports GSM + GPRS operations