GPRS GSM Module – SIM800L – 1

Description

• Chip : SIM800L
• Operating voltage : 3.7-4.2V
• TTL serial port for serial port, you can link directly to the microcontroller. No need MAX232
• Module size: 2.5cm*2.3cm
• 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