How to Realize a Remot Fire Detection Devices Using Iteaduino Plus

Iteaduino Plus is an open-source ARM development board, which is based on Allwinner A10 SoC, small size, hacker friendly, extendable and very low-cost.
Itead customized IteadOS, an operating system based on Ubuntu for it, which offers operation function of the underlying hardware such as GPIO and SIM900, etc. At Iteaduino Plus platform, one who only knows a little about C and C++ and nothing about Linux system (to be frank, that is me) has no trouble in driving some common electronic modules and using ARM just as Arduino.
With existing resources, we made a small DEMO to show how to make a phone call to the target phone number when the ambient temperature is too high.

1, Iteaduino Plus
http://imall.iteadstudio.com/im130808010.html

2, ELECTRONICBRICK - TEMPERATURE SENSOR BRICK
http://imall.iteadstudio.com/im120710010.html

3, SIM900 GSM/GPRS MINIMUM SYSTEM MODULE
http://imall.iteadstudio.com/im120525010.html

4,RASPBERRY PI SIM900 GSM/GPRS MODULE ADAPTER KIT
http://imall.iteadstudio.com/im130609001.html

5, GROVE UNIVERSAL 4 PIN CONVERTER CABLE - 20CM
http://imall.iteadstudio.com/im121027001.html

6, ELECTRONIC BRICK - LIGHTING EMITTING DIODE
http://imall.iteadstudio.com/prototyping/electronic-brick/im130418002.html

Connect the parts to Iteaduino Plus with corresponding cables. As LED and temperature sensor adopt standard electronic brick Grove interfaces, and there is a customized Adapter Kit for SIM900 module, connection is quite simple instead of having a bunch of cables in mess.

First, connect RASPBERRY PI SIM900 GSM / GPRS MODULE ADAPTER KIT with SIM900 Module. Adapter Kit is customized for SIM900 module and Raspberry Pi to convert pin header interface on SIM900 module into Raspberry Pi compatible 26pin interface. Iteaduino Plus also provides a Raspberry Pi compatible 26pin interface, so that Raspberry Pi accessories can be used on it. As shown in Figure 2, insert Adapter Kit into SIM900 module according to the red marks and another end of Adapter Kit should be connected with Iteaduino Plus.

Then connect the temperature sensor and LED indicator to Iteaduino Plus via Grove interface as shown in figure 3. Please note that the temperature sensor should be connected to P17 and LED indicator to P18.
At this point, we have had the parts connected. It is quite simple, isn’t it?

Itead has provided a lot of useful library functions, so that users can easily call these library functions to drive the underlying hardware. For example, SIM900, LED and temperature sensors, etc. used in this DEMO can all be driven by calling the library functions. Just think about it, we only need to call a few simple functions to drive the hardware without having to read <Linux Device Drivers 3rd Edition> and <Understanding the Linux Kernel, 3rd Edition> published by O'REILLY. How fantastic it is!

The code for the whole program is as follows:

#include <stdio.h>
#include <iteadcpp.h>

#define  tempsensor 17
#define  ledgreen 18

//SoftwareSerial gsm0;
GSM gsm;

void ioSetup(void)
{
pinMode(tempsensor,INPUT);
pinMode(ledgreen,OUTPUT);
}

intCurrent_temperature;

int main(void){

printf("system startup\n");
gsm.TurnOn(9600);              //module power on
gsm.InitParam(PARAM_SET_1);//configure the module 
gsm.Echo(1);
ioSetup();   //Setup temperature sensor and LED work mode
        while(1){
Current_temperature=digitalRead(tempsensor);

       if(Current_temperature ==1) //Temperature is higher than expected
       {
printf("ATTENTION:Temperature is too HIGH\n");
digitalWrite(ledgreen,HIGH);
gsm.Call("13600xxxxxx");
        delay(30000);
        break;
       }
else  //Temperature is Normal.
                {
digitalWrite(ledgreen,LOW);
printf("SAFE, Current Temperature is OK\n");
                delay(10000);
                }
        }
}

Use iteadcompilecpp test gsm_test.cpp in the terminal to compile. After compiling, it becomes an executable file.

This is the video to show how it is running.