SIM800L GSM/GPRS Module มีเสาอากาศ และก้างปลา

• Chip: SIM800L
• Voltage: 3.7-4.2V
• Module size: 2.5cmx2.3cm
• TTL serial port for serial port, you can link directly to the microcontroller. No need MAX232
• Power module automatically boot, homing network
• Onboard signal lights all the way . It flashes slowly when there is a signal, it flashes quickly when there is no signal

• SIM800 5v/4v ↔ Arduino 5V
• SIM800 GND (either one) ↔ Arduino GND
• SIM800 SIM_TXD ↔ Arduino D8
• SIM800 SIM_RXD ↔ Arduino D7
  
  

#include

 

//SIM800 TX is connected to Arduino D8

#define SIM800_TX_PIN 8

 

//SIM800 RX is connected to Arduino D7

#define SIM800_RX_PIN 7

 

//Create software serial object to communicate with SIM800

SoftwareSerial serialSIM800(SIM800_TX_PIN,SIM800_RX_PIN);

 

void setup() {

  //Begin serial comunication with Arduino and Arduino IDE (Serial Monitor)

  Serial.begin(9600);

  while(!Serial);

   

  //Being serial communication witj Arduino and SIM800

  serialSIM800.begin(9600);

  delay(1000);

   

  Serial.println("Setup Complete!");

}

 

void loop() {

  //Read SIM800 output (if available) and print it in Arduino IDE Serial Monitor

  if(serialSIM800.available()){

    Serial.write(serialSIM800.read());

  }

  //Read Arduino IDE Serial Monitor inputs (if available) and send them to SIM800

  if(Serial.available()){    

    serialSIM800.write(Serial.read());

  }

}