20db legkisebb SIM800L GPRS GSM modul MicroSIM kártya alaplap Négysávos TTL soros port
20pcs Smallest SIM800L GPRS GSM Module MicroSIM Card Core BOard Quad-band TTL Serial Port
 
 
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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