aymen ammari
DIIDevHeads IoT Integration Server
•Created by aymen ammari on 6/12/2024 in #middleware-and-os
making a smoke sensor that sends a sms message to a user when it detects smoke.
I'm new to arduino coding and we are tasked with making a smoke sensor that sends a sms message to a user when it detects smoke. One problem that we've encountered is that our gsm module 900a can't seem to find a network (the status LED blinks every second rather than every 3 seconds). How can we fix this problem?
I will provide the code below
int buzzer = 8;
int smokeA0 = A5;
int sensorThres = 0;
#include<SoftwareSerial.h>
SoftwareSerial GSM (9, 10);
void setup()
{
pinMode(buzzer, OUTPUT);
pinMode(smokeA0, INPUT);
Serial.begin(9600);
GSM.begin (9600);
delay(100);
}
void loop() {
int analogSensor = analogRead(smokeA0);
if (analogSensor > sensorThres) { digitalWrite(buzzer, HIGH); delay (1000); Serial.println("AT+CMGF=1");
delay(1000);
Serial.println("AT+CMGS="+639053188487"\r"); Serial.println("smoke detected alert"); Serial.println((char)26); delay(100); } else { digitalWrite(buzzer,LOW); } delay(50); }
if (analogSensor > sensorThres) { digitalWrite(buzzer, HIGH); delay (1000); Serial.println("AT+CMGF=1");
delay(1000);
Serial.println("AT+CMGS="+639053188487"\r"); Serial.println("smoke detected alert"); Serial.println((char)26); delay(100); } else { digitalWrite(buzzer,LOW); } delay(50); }
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