Hello, Is it possible to use a GSM/GPRS shield to communicate between two Arduinos without being on the cellular network? I just want to use the hardware for a serial wireless link. [image] Sim900 Quad-band GSM GPRS Shield Development Board for Arduino for sale online... Find many grea…

GSM/GPRS shield - use them like nRF24L01's? Do you need SIM card? - #3 by system - General Guidance

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