SIM800L GPRS GSM Module - Quad-Band TTL Serial Port
Product Description
- Chip: SIM800L
- Voltage: 3.7-4.2V
- Support networks: China Mobile, China Unicom and global quad-band network
- Module size: 2.5cmx2.3cm
- TTL serial port for serial port, you can link directly to the microcontroller. No need MAX232
- Power module automatically boot, homing network
- Onboard signal lights all the way . It flashes slowly when there is a signal,
it flashes quickly when there is no signal - Package Included: 1 x SIM800L GPRS GSM Module Card Board + Antenna