Specifications

• Supply voltage: 3.8V – 4.2V
• Recommended supply voltage: 4V
• Power consumption:
  • sleep mode < 2.0mA
  • idle mode < 7.0mA
  • GSM transmission (avg): 350 mA
  • GSM transmission (peek): 2000mA
• Module size: 25 x 23 mm
• Interface: UART (max. 2.8V) and AT commands
• SIM card socket: micro SIM (bottom side)
• Supported frequencies: Quad Band (850 / 950 / 1800 /1900 MHz)
• Antenna connector: IPX
• Status signaling: LED
• Working temperature range: -40 do + 85 ° C

Set includes:

• SIM800L module
• gold pin headers
• wire antenna
• PCB antenna with pigtail and IPX connector

Module pinout

Pinout (bottom side – left):

• RING (not marked on PBC, first from top, square) – LOW state while receiving call
• DTR – sleep mode. Default in HIGH state (module in sleep mode, serial communication disabled). After setting it in LOW the module will wake up.
• MICP, MICN – microphone (P + / N -)
• SPKP, SPKN – speaker (P + / N -)

Pinout (bottom side – right):

• NET – antenna
• VCC – supply voltage
• RESET – reset
• RXD – serial communication
• TXD – serial communication
• GND – ground

NOTICE:

Be prepared to handle huge power consumption with peek up to 2A. Maximum voltage on UART in this module is 2.8V. Higher voltage will kill the module