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DESCRIPTION
The SIM800C GSM/GPRS Module is a compact quad-band GSM module that enables microcontrollers such as Arduino, ESP8266, and ESP32 to communicate over the cellular network. It can send and receive SMS messages, make voice calls, and transmit data using GPRS.
Feature | Description |
Module | SIM800C GSM/GPRS |
Network | GSM/GPRS Quad-Band (850/900/1800/1900 MHz) |
Supply Voltage | 3.4V–4.4V DC (4.0V recommended) |
Operating Current | 20–30 mA (idle), up to 2 A during transmission bursts |
Communication | UART (Serial) |
Baud Rate | 9,600 bps (default, configurable) |
SIM Card | Micro-SIM (depends on module version) |
Antenna | External GSM antenna |
Pin | Function |
VCC | 3.4–4.4V power input |
GND | Ground |
TXD | Serial transmit |
RXD | Serial receive |
RST | Reset pin |
NET | Network status indicator |
MIC+/MIC? | Microphone input |
SPK+/SPK? | Speaker output |