SIM800L SMS Data GSM GPRS 4 Frequency Module Replacement for SIM900A Device Usb Micro Microphone Phone

SIM800L SMS data GSM GPRS 4 frequency module replaces SIM900A SIM800L Module

Basic details:

3G/4G SIM can be used. Tested from AIS and Ture SIMs. The SIM800L Module comes with a micro SIM antenna. The SIM800L Module is used for sending and receiving SMS, internet, and others (messages) like the big GSM boards, but cannot talk because the speaker and microphone legs have been cut off.

**** Important Arduino ESP boards and others may not have enough power supply. You have to add more power in parallel. The device will work immediately when the power is supplied. There is an LED display.

Signal If the phone signal is detected, it will blink slowly. But if it is not detected, it will blink rapidly. ****

//SIM800L Module board can use a 5V Li-ion battery as a power supply. It is important that the current is sufficient.

Product Description

- This module power supply of 5V, computer debugging USB to TTL serial port. 800MA power supply output current, TTL serial port compatible with 3.3V and 5V MCU, the MCU can be connected directly.

- IPX antenna interface can switch PCB antenna, glue stick antenna and sucker antenna.