FYP 2 PROGRESS - WEEK 4

Title

- Learn and research more about gsm and arduino

Purpose

- To find suitable method to calculate and get input from meter energy

Description

Booting the GSM Module

1. The SIM card is inserted to GSM module and lock it.

2. The adapter is connected to GSM module and turn it ON.

3. Waited for some time (say 1 minute) and  start to see the blinking rate of ‘status LED' or ‘network LED'(GSM module will take the time to establish connection with mobile network.

4. After the connection is set up and initiated is made successfully, the status/network LED is blink continuously every 3 seconds. The user try making a call to the mobile {number of|quantity of|amount of} the sim card inside GSM module. After hear a ring back, the gsm module has successfully established network connection.

Connecting GSM Module to Arduino

There are two methods for connecting GSM module to arduino. Regardless, the communication between GSM and Arduino module is serial. So it supposed to use serial pins of Arduino (Tx and Rx). So if choosing this technique, Tx pin of GSM module is connected to Rx pin of Arduino and Rx pin of GSM module to Tx pin of Arduino. GSM Tx –> Arduino Rx and GSM Rx –> Arduino Tx. The ground pin of arduino is connected to ground pin of gsm module. Lastly, load different programs to communicate with gsm module and  ensure it is work.

To prevent the difficulty, in this project, it can using  alternate method in which two digital pins of arduino are used for communication. It must select two PWM enabled pins of arduino  for this method. So in this project, I choose pins 12 and 13 (which are PWM enabled pins).

So given below is the circuit diagram to connect gsm module to arduino – and hence use the circuit to send sms and receive sms using arduino and gsm modem.

The connections as shown are made in the project. The program (coding) has two objectives as described below:-

1) Send SMS using Arduino and GSM Module – to a specified mobile number inside the program.

2) Receive SMS using Arduino and GSM Module – to the SIM card loaded in the GSM Module.