Package includes: 1 piece X SIM800L GSM Module with header pins and its Antenna


The SIM800L is a Quad-Band GSM/GPRS module with the core signals broken out into standard 2.54mm headers. This small module accepts a micro-SIM card to be inserted at the SIM-holder at the bottom side allowing any microcontroller/microprocessor with a UART port to communicate over the GSM network of choice. A helix antenna is provided and shall be soldered into the pin labeled “NET”. There is also a UFL antenna connector if an external antenna is desired.


This module gives the MCU/MPU access to SMS, GPRS, or data call services and therefore opening several possibilities for monitoring and control including IOT applications, among others.


Powering the Module.

 The module requires an input power of 3.4V to 4.4V and draws a current up to 2A during peak communications. A 4.0V from an adjustable linear regulator like the LM338 / LM350 or from a buck converter such as LM2596. A large capacitor across the Vcc is also recommended (e.g. 220uF). These requirements tell us that this module should not be powered from the 5V pin of the Arduino. A single 3.7V Li Ion battery or a power supply adaptor of higher voltage and stepped down to 4v are possible power sources.


Using with an Arduino.

Using this module with an Arduino/Saleng Uno is relatively easy. At a minimum, connect the power source to the Vcc and Gnd pins, solder the antenna to the NET pin (or use an external atenna via the UFL connector) and connect the Rx and Tx pins to the Arduino/Saleng Uno’s Hardware or Software serial port.


Since  AVR-based Arduinos such as the Uno, Mega, Nano, among others, operate at 5V logic while the SIM800L is at a lower logic voltage, a simple two resistor voltage divider network should be installed at the modules RXD pin. The TXD pin of the module may be directly connected to the Rx pin of the Arduino as the voltage falls within the VIH and VIL of the AVR. Other solutions include proper level shifting IC’s or discrete circuits.



Quad-band 850/900/1800/1900MHz

GPRS multi-slot class12 connectivity: max. 85.6kbps(down-load/up-load)

GPRS mobile station class B

Controlled by AT Command (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands)

Supports Real Time Clock

Supply voltage range 3.4V ~ 4.4V

Supports A-GPS

Supports 3.0V to 5.0V logic level

Low power consumption, 1mA in sleep mode

Compact size 23mm x 35mm x 5.6mm

Micro SIM Card


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SIM800L GSM Module - Quad Band GPRS GSM Module Micro Sim Card Core mini GSM

SKU: 303
₹550.00 Regular Price
₹423.00Sale Price