This tasty proof-of-concept cellular sandwich is made by adding a Sim900 GSM/GPRS module, which communicates via UART, to the Pi/TFT hardware while using a piece of foam core board in the middle ...

Danlaw’s DL750 includes Telit’s ultra-compact GSM/GPRS cellular module, the GE865-QUAD. The product is a self-contained consumer installable data coll ...