Picture
x2pcs SIM800L GPRS GSM Module PCB Antenna SIM Board Quad band for MCU Arduino

Picture

  • 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
  • Suitable for xDrip Parakeet project
Caution! : This module itself uses input voltage of 3.7V – 4.2V. Therefore, if you directly connect the Vcc pin to Arduino 5V pin, it might damage the module as well.

Picture

  • 2pcs x SIM800L GPRS GSM Module 
  • 2pcs x Coiled Antenna 
  • Pin headers 

Picture