NodeMCU and SIM800L

Hi Rodri,

My test code is as follows:

#include
SoftwareSerial mySerial(D8, D7); // RX, TX
void setup() {
Serial.begin(19200); //Скорость порта для связи Arduino с компьютером

// SIM800 PWK pin is conected to D0
pinMode(D0, OUTPUT);

// switching on SIM800 by powering down PWK pin for a second
digitalWrite(D0, LOW);
delay(1000);
digitalWrite(D0, HIGH);

mySerial.begin(19200);
mySerial.println("AT");

mySerial.begin(19200);
delay(5000);

if(mySerial.available())
Serial.write(mySerial.read());

// setting some parameters
mySerial.write("AT+CMGF=1\n\r"); // SMS output text mode

if(mySerial.available())
Serial.write(mySerial.read());

mySerial.write("AT+CNMI=1,2,2,1,0\n\r"); // Show SMS text in output

if(mySerial.available())
Serial.write(mySerial.read());

mySerial.write("at+clip=1\n\r"); // Calling line presentation in output
}

void loop() {

// code to play with AT commands from the terminal
if (mySerial.available())

Serial.write(mySerial.read());

if (Serial.available())

mySerial.write(Serial.read());

}