TTL serial port, directly connect to the microcontroller.
Charge the module, it will automatically boot and search for network.
Onboard signal indicator will always be flashing. It flashes slowly when there is a signal; it flashes quickly when there is no signal.
Chip: SIM800L
Voltage: DC 3.7-4.2V(1A current peak)
Support networks: Quad-band network
Module size: 2.5 x 2.3cm
– SIM800L GPRS GSM Module with Antenna Cable
– Quad-band 850/900/1800/1900MHz
– Used in GSM based projects, GPS based projects, Robotics projects, or 8051/AVR/ARM/PIC/Arduino/Raspberry-pi based projects
– GPRS multi-slot class12 connectivity: max. 85.6kbps(down-load/up-load)
– GPRS mobile station class B
– Controlled by AT Command (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands)
– Supports Real Time Clock
– Supply voltage range 3.4V ~ 4.4V
– Supports A-GPS
– Supports 3.0V to 5.0V logic level
– Low power consumption, 1mA in sleep mode