AT Commands GSM Sim900D

Projects General Guidance
1

Hi Im new at arduino and programming.

May I ask is there a way to send the reading of my sensor (Dht11) through SMS using a GSM shield?

Can i use the AT+CMGS command here? Or what Command will i use?

I have set my temp and humidity into these

int h = dht.readHumidity();
int t = dht.readTemperature();

2

I have this code.

(sms.SendSMS("3471234567", "Arduino SMS"))

How can i send the reading of this by substituting it as an variable in the body of sms

3

Caveat - I don't use libraries with the GSM/GPRS shields.

I would suggest that you need to convert your variables to a string (sprintf? http://www.cplusplus.com/reference/cstdio/sprintf/) and then replace "Arduino SMS" with your formatted data.

4

Thanks!

Are you using the softwareserial only? and the AT commands?

5

Yes, just use SoftwareSerial, send a command but then wait for the response before carrying on. You might get an error message which needs to be acted upon!