Invent SIM 800L is a mini-GSM module that offers 2G GSM and GPRS data. Now also in a bundle with ThingsMobile SIM card. The module has a small size and low power consumption. Twice the size of a coin and 1mA in sleep mode.
It uses a serial communication interface, supports 3GPP TS 27.007, 27.005 and SIMCOM extended AT commands. It also supports A-GPS technology, which helps to maintain the indoor position of the mobile network.
Compatible with Arduino Uno, Arduino Mini, Raspberry Pi. A mini GSM antenna is included, but an external power supply is required.