Smallest Sim800l GPRS GSM Module Microsim Card Core Board Quad-band TTL Serial Port for Arduino
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
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