SIM800C 2G GSM Communication Module – Compact Embedded Cellular Board for IoT and M2M Applications

Description

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Description

Module COMX GSM is a stackable 2G communication module with a built-in SIM800C communication module, operating at GSM/GPRS frequencies of 850/900/1800/1900MHz, enabling low-power transmission of SMS text and data messages. The module features a DC power input, allowing it to be powered by an external power supply of 5 ~ 12V. For user convenience in configuring pins, a DIP switch is used for pin settings. This module is particularly suitable for IoT industries such as remote meter reading, smart wearables, smart parking, and municipal management, where ultra-low power consumption and compact size are core requirements.

Compatibility When used with the Fire controller, due to PSRAM pin (G16/G17) conflicts, please switch the module base DIP switch pins to TX(G0/G13), RX(G5/G15).

Features

• Stackable design
• Supports SMS text and data transmission
• Can be powered externally
• AT command control
• SIM card type: MicroSIM
• Status signals: Two LED indicators (power/network status)
• Power supply voltage: 3.4-4.4V
• Typical power consumption in sleep mode: 0.88mA
• External antenna: 2.5dB SMA antenna
• Serial communication: UART 115200bps
• Operating temperature range: -40°C to +85°C
• Frequency bands:
  • Quad-band 850/900/1800/1900MHz
  • GPRS multi-slot class 12/10
  • GPRS mobile station class B
• Data transmission:
  • GPRS class 12: Maximum 85.6 kbps (uplink/downlink speed)
  • Supports PBCCH (Packet Broadcast Control Channel)
  • Coding schemes: CS 1, 2, 3, 4
  • Integrated TCP/IP, UDP, HTTP, FTP protocols
  • Supports USSD (Unstructured Supplementary Services Data)

Includes

• 1 x Module COMX GSM
• 1 x SMA antenna

Applications

• Smart metering
• Smart parking
• Municipal management

Specifications

Specification	Parameter
Frequency bands	GSM/GPRS 850/900/1800/1900MHz
Network protocols	TCP/IP/UDP/FTP/HTTP, etc.
Antenna gain	2.5dB 1880-1900MHz/2320-2370MHz 2575-2635MHz
Communication method	UART 115200bps
DC interface specs	5.5mm
Net weight	40g
Gross weight	75g
Module dimensions	54 x 54 x 13.2mm
Package Size	165 x 60 x 36mm

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