Product Description

SIM800L GSM/GPRS Module for Arduino Projects

Name: SIM800L GSM/GPRS Module for Arduino Projects
Brand: HIMASTORES
SKU: HMJ055
Price: 900.00 KES
Availability: InStock

Quad-Band Cellular Module for SMS, Calls, and Data

The SIM800L is a compact, low-power GSM/GPRS module that adds cellular communication to microcontroller projects. It supports voice calls, SMS, and GPRS data transmission over 2G networks, making it ideal for remote monitoring, GPS tracking, and IoT applications.

QuadBand Support Works on 850/900/1800/1900MHz networks worldwide

Full Voice, SMS, and GPRS Capability - Complete cellular communication solution

Power supply requirement is 3.4V to 4.4V - do not use 5V or 3.3V directly.

Peak current during transmission can reach 2A - ensure stable power source.

Use AT commands via UART (default 9600 baud) for controlling the module.

This module is ONLY compatible with 2G networks - check local carrier support [citation:3][citation:10]

Technical Specifications

Parameter	Value
:-	:-
Frequency Bands	850/900/1800/1900MHz (Quad-Band) [citation:6]
GPRS Class	Class 12 (up to 85.6 kbps) [citation:6]
Power Supply	3.4V - 4.4V (recommended 4V) [citation:2][citation:9]
Peak Current	2A during transmission [citation:1][citation:2][citation:10]
Interface	UART (max 2.8V logic) + AT Commands [citation:1]
Antenna	IPX connector + onboard spring antenna
Operating Temp	-40°C to +85°C [citation:1]
Module Size	15.8 x 17.8 x 2.4mm [citation:6]

= Key Features =

+Small and CostEffective Ideal for space-constrained and budget projects

+Voice, SMS, and GPRS - Complete cellular functionality in one module

+Power Saving Modes - Sleep mode consumes under 2mA

+SIM Card Support - Uses microSIM card (bottom socket) [citation:1]

+AT Command Control - Standard 3GPP TS 27.007 and SIMCOM enhanced commands [citation:6]

= Applications =

GPS and location tracking systems [citation:3][citation:10]
Remote sensor monitoring and alert systems
Home and industrial automation
SMS notification and control systems
Smart agriculture and environmental monitoring [citation:12]

 Versatile Cellular Module - Great for adding SMS, calls, and data to any project

Widely Supported - Works with Arduino, ESP, STM32, and more

√ Compatible with Arduino IDE, ESPHome, and other popular platforms

√ Includes antenna for immediate use

Important Connection Notes

The SIM800L requires careful power and wiring considerations:

*Power*:

Use an external power supply rated 4V / 2A - USB ports are typically insufficient [citation:10]
Lithium battery or DC-DC converter recommended [citation:9]
5V from Arduino will damage the module (use a diode for voltage drop) [citation:9]

*Logic Level*:

Module operates at 2.8V UART (not 5V tolerant) [citation:1]
For Arduino (5V), use a voltage divider on the RX line [citation:3][citation:4]
TX line can often connect directly (3.3V/2.8V acceptable) [citation:5]

*SIM Card*:

Requires a 2G network SIM (check local carrier compatibility)
Some networks (e.g., Jio) are not supported - alternatives exist [citation:3]

*ESPHome Configuration*:

For ESPHome users, the component requires UART setup at 9600 baud, while the logger must be disabled or assigned to a different pin [citation:5][citation:8].