SIM800L Quad-band Network GPRS GSM Breakout Module (with 3G 3DBI PCB Antenna)

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• Features:
• Quad-band 850/900/1800/1900MHz - connect onto any global GSM network with any 2G SIM .
• Make and receive voice calls using a headset or an external 8Ω speaker and electret microphone.
• Send and receive SMS messages.
• Send and receive GPRS data (TCP/IP, HTTP, etc.).
• Scan and receive FM radio broadcasts.
• Lead out buzzer and vibrational motor control port.
• AT command interface with "auto baud" detection.
• Onboard IPEX socket that can be connected to external antenna.

• Description:
• Chip: SIM800L
• Voltage: 3.7-4.2V (peak 1A)
• 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