NodeMCU and Siemens TC 35 for SMS
Posted: Mon Sep 11, 2017 8:16 amHello,
I would like to connect my NodeMCU with my GSM Borad (Siemens TC 35).
The code works fine with an arduino, but not with the nodemcu.
I guess its a problem with the serial communication, I used the libs from the arduino, I hope thats
okay. There is no reaction from the TC35. I used PIN D5/D6 for software serial.
Any ideas about the problem?
Cheers
BM
I would like to connect my NodeMCU with my GSM Borad (Siemens TC 35).
The code works fine with an arduino, but not with the nodemcu.
Code: Select all
//Es kann ein Text im seriellen Monitor eingegeben werden, der dann per SMS verschickt wird
//Pin D5 an Rx TC35, Pin D6 an Tx TC35, Pin D1 an IGT TC35
// Ground Arduino und TC verbinden
// Seriellen Monitor starten, Nachricht eingeben, mit "." abschliessen und senden
#include <SoftwareSerial.h>
#define rxPin 14 //D5
#define txPin 12 //D6
SoftwareSerial gsmSerial(rxPin, txPin);
char recu[150]; // Array for message
String message = "";
int i;
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
Serial.begin(9600);
while(!Serial) {}
//--- turn on TC35 ---
// wire D1 NodeMCU to IGT pin on TC35
// ground pin for 100 ms - this is the same as pressing the button on the TC35 to start it up
pinMode(5, INPUT);
digitalWrite(5, LOW);
pinMode(5, OUTPUT);
delay(100);
pinMode(5, INPUT);
gsmSerial.begin(9600);
delay(5000);
Serial.println("GSM Modul bereit");
Serial.println("Nachricht eingeben und mit Punkt beenden");
}
void loop() {
i = 0;
while (Serial.available() > 0) {
recu[i] = Serial.read();
if ((recu[i] != 46) && (recu[i] != 13) && (recu[i] != 10))
{
message += char(recu[i]);
}
i++;
// 46 is ASCII code for "."
if (recu[i - 1] == 46) {
SendTextMessage();
ShowSerialData();
delay(1000);
message = "";
i = 0;
}
}
}
void SendTextMessage() {
digitalWrite(13, HIGH);
Serial.println("Sende SMS...");
gsmSerial.println("AT+CMGF=1");
delay(500);
gsmSerial.print("AT+CMGS=\"+4915150725424\"\r");
delay(500);
gsmSerial.print(message);
delay(500);
gsmSerial.println((char)26); // ASCII Ctrl-Z
delay(500);
Serial.println("SMS gesendet.");
digitalWrite(13, LOW);
}
void ShowSerialData() {
while(gsmSerial.available() > 0) {
Serial.write(gsmSerial.read());
}
}I guess its a problem with the serial communication, I used the libs from the arduino, I hope thats
okay. There is no reaction from the TC35. I used PIN D5/D6 for software serial.
Any ideas about the problem?
Cheers
BM
