SIM800C GSM GPRS Module

📶 SIM800C GSM/GPRS module for cellular connectivity
📱 Supports calls, SMS, and GPRS data (2G network)
🔌 UART interface controlled via AT commands
⚡ Low power design suitable for embedded projects
🧩 Ideal for IoT monitoring, trackers, and SMS notification systems
📡 Works with Arduino, ESP32, STM32 via serial connection
📦 Compact module—easy to integrate into devices
✅ Reliable choice for GSM communication projects

SKU: EK509 Category: IoT and Wireless Tags: GSM, IoT and Wireless

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Description

DESCRIPTION Power input: DC5V or received by a lithium battery input VBAT and GND.Supports MCU level: 5V / 3.3V for TTL logic (Such as the common 51 and the for af 's the 3.3v) Antenna use: IPEX antenna interfz rsion PCB antenna or antenna IPEX-SMA- <h3>PIN DESCRIPTION</h3> 5V: power supply pin, the only inj 3 r the board V_TTL: access control board microcontrolls re target voltage of 5V / 3.3V (according to its own microcontroller is I ) gt i d to convert the GSM module board TXD and R_XD fo!e wrresponaTL IognEND power supply ground We Are The Distributor @§TZT Brat Hong Kong€hina. TXD: send pin serial port modul@* TTL ley ly corected to RS232 level) RXD: receive pin serial port module, TTL level (not directly connected to RS232 level) DTR: Data Terminal Ready SPKP: Core Audio output pin SPKN: Core Audio output pin MICN: Core Audio input MICP: Core Audio input RI: Ring core pin tips VRTC: RTC pin external battery GND: power supply ground PWR: This pin can turn down or turn off the module GND: power supply ground VBAT: lithium battery input pin, 3.3v; –

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Pin Connections

1 Table

Pin Connections Table 1

Board	Sensor Pin	Connection
SIM800C	VCC/GND/TX/RX	4-4.2V (own supply) / GND / board RX pin / board TX pin

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SIM800C GSM GPRS Module

7 Examples • C/C++ | Boards: Arduino Uno, Arduino Nano, Arduino Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico

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SIM800C GSM GPRS Module - Arduino Uno

SIM800C GSM GPRS Module - Arduino Nano

SIM800C GSM GPRS Module - Arduino Mega

SIM800C GSM GPRS Module - ESP32

SIM800C GSM GPRS Module - ESP8266

SIM800C GSM GPRS Module - STM32

SIM800C GSM GPRS Module - Raspberry Pi Pico

📄 File: sim800c_gsm_gprs_module_-_arduino_uno.inoArduino Uno

686 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=2, TX=3 on Arduino Uno. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#include <SoftwareSerial.h>

7SoftwareSerial LINK_SERIAL(2, 3);

9void setup() {

10 Serial.begin(115200);

11 LINK_SERIAL.begin(9600);

12 delay(3000); // let the module finish booting

13 LINK_SERIAL.println("AT"); // basic "are you there" check

14 LINK_SERIAL.println("AT+CSQ"); // signal quality

15}

17void loop() {

18 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

19 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

20}

📄 File: sim800c_gsm_gprs_module_-_arduino_nano.inoArduino Nano

687 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=2, TX=3 on Arduino Nano. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#include <SoftwareSerial.h>

7SoftwareSerial LINK_SERIAL(2, 3);

9void setup() {

10 Serial.begin(115200);

11 LINK_SERIAL.begin(9600);

12 delay(3000); // let the module finish booting

13 LINK_SERIAL.println("AT"); // basic "are you there" check

14 LINK_SERIAL.println("AT+CSQ"); // signal quality

15}

17void loop() {

18 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

19 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

20}

📄 File: sim800c_gsm_gprs_module_-_arduino_mega.inoArduino Mega

655 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=19, TX=18 on Arduino Mega. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#define LINK_SERIAL Serial1

8void setup() {

9 Serial.begin(115200);

10 LINK_SERIAL.begin(9600);

11 delay(3000); // let the module finish booting

12 LINK_SERIAL.println("AT"); // basic "are you there" check

13 LINK_SERIAL.println("AT+CSQ"); // signal quality

14}

16void loop() {

17 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

18 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

19}

📄 File: sim800c_gsm_gprs_module_-_esp32.inoESP32

648 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=16, TX=17 on ESP32. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#define LINK_SERIAL Serial1

8void setup() {

9 Serial.begin(115200);

10 LINK_SERIAL.begin(9600);

11 delay(3000); // let the module finish booting

12 LINK_SERIAL.println("AT"); // basic "are you there" check

13 LINK_SERIAL.println("AT+CSQ"); // signal quality

14}

16void loop() {

17 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

18 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

19}

📄 File: sim800c_gsm_gprs_module_-_esp8266.inoESP8266

686 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=D7, TX=D8 on ESP8266. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#include <SoftwareSerial.h>

7SoftwareSerial LINK_SERIAL(D7, D8);

9void setup() {

10 Serial.begin(115200);

11 LINK_SERIAL.begin(9600);

12 delay(3000); // let the module finish booting

13 LINK_SERIAL.println("AT"); // basic "are you there" check

14 LINK_SERIAL.println("AT+CSQ"); // signal quality

15}

17void loop() {

18 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

19 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

20}

📄 File: sim800c_gsm_gprs_module_-_stm32.inoSTM32

651 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=PA10, TX=PA9 on STM32. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#define LINK_SERIAL Serial1

8void setup() {

9 Serial.begin(115200);

10 LINK_SERIAL.begin(9600);

11 delay(3000); // let the module finish booting

12 LINK_SERIAL.println("AT"); // basic "are you there" check

13 LINK_SERIAL.println("AT+CSQ"); // signal quality

14}

16void loop() {

17 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

18 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

19}

📄 File: sim800c_gsm_gprs_module_-_raspberry_pi_pico.inoRaspberry Pi Pico

658 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=1, TX=0 on Raspberry Pi Pico. Needs its own separate 4-4.2V supply capable of ~2A peaks - a board's 5V/3.3V pin can't power it.

6#define LINK_SERIAL Serial1

8void setup() {

9 Serial.begin(115200);

10 LINK_SERIAL.begin(9600);

11 delay(3000); // let the module finish booting

12 LINK_SERIAL.println("AT"); // basic "are you there" check

13 LINK_SERIAL.println("AT+CSQ"); // signal quality

14}

16void loop() {

17 if (LINK_SERIAL.available()) Serial.write(LINK_SERIAL.read());

18 if (Serial.available()) LINK_SERIAL.write(Serial.read()); // type AT commands directly in the Serial Monitor

19}

Project Notes:

UART GSM/GPRS modem, AT-command controlled.

نظرة عامة ومواصفات المنتج — بالعربية

SIM800C GSM GPRS Module متوفر الآن في متجر إكوسترا للإلكترونيات، ضمن قسم IoT and Wireless، بسعر 400,00 EGP. كود المنتج لدينا: EK509. المنتج متوفر في المخزون وجاهز للشحن الفوري لكل محافظات مصر مع إمكانية الدفع عند الاستلام.

أهم المواصفات الفنية:

Product Name: SIM800C GSM/GPRS Module
Category: Module → GSM / Cellular Module
Module Type: GSM / GPRS
الشريحة: SIM800C
Network Bands: Quad-Band 850/900/1800/1900 MHz
Supply Voltage: 3.4–4.4 V (typical)
واجهة الاتصال: UART (AT Commands)
Sim Card: SIM / Micro SIM (variant-dependent)

هذا المنتج مناسب لمشاريع الأردوينو (Arduino) و ESP32 و Raspberry Pi، ومشاريع الروبوتات وإنترنت الأشياء والتعليم الهندسي. جميع القطع مفحوصة قبل الشحن.

تصفّح المزيد من IoT and Wireless في إكوسترا.

Specification

WeightWeight	10 g
Dimensions	5 × 4 × 2 cm
Product Name	SIM800C GSM/GPRS Module
Category	Module → GSM / Cellular Module
Module Type	GSM / GPRS
Chipset	SIM800C
Network Bands	Quad-Band 850/900/1800/1900 MHz
Supply Voltage	3.4–4.4 V (typical)
Interface	UART (AT Commands)
SIM Card	SIM / Micro SIM (variant-dependent)
Antenna	External antenna supported (typical)
Functions	Calls, SMS, GPRS data
Applications	IoT cellular projects, SMS alert systems, remote monitoring, trackers