Product Description
Sim800L GPRS GSM Module Card Board Quad-Band Onboard +Antenna
Description:
Chip: SIM800L
Voltage: 3.74.2V
Support networks: China Mobile, China Unicom and global quadband network
Module size: 2.5cm*2.3cm
TTL serial port for serial port, you can link directly to the microcontroller. No need MA*232
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
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