user26577: I couldn't find anything on this topic.
Task: to connect sensors to Arduino board via Bluetooth module, process the received data and then send the data to server via GSM module. 
Question: Is it possible to connect both of these modules to 1 Arduino board? If I'm not wrong, Arduino Uno has only one pair of Rx Tx pins, while for these two modules each has its own pairs on Rx Tx pins.
I need to know this before ordering them. So, please help

user4169: Take a look at the SoftwareSerial library which allows other pins to be used for Serial at speeds <= 57600
https://www.arduino.cc/en/Reference/SoftwareSerial

26577: <p>I couldn't find anything on this topic.</p>

<p><strong>Task:</strong> to connect sensors to Arduino board via Bluetooth module, process the received data and then send the data to server via GSM module. </p>

<p><strong>Question:</strong> Is it possible to connect both of these modules to 1 Arduino board? If I'm not wrong, Arduino Uno has only one pair of Rx Tx pins, while for these two modules each has its own pairs on Rx Tx pins.</p>

<p>I need to know this before ordering them. So, please help</p>
 4169: <p>Take a look at the <code>SoftwareSerial</code> library which allows other pins to be used for Serial at speeds &lt;= <code>57600</code></p>

<p><a href="https://www.arduino.cc/en/Reference/SoftwareSerial" rel="nofollow">https://www.arduino.cc/en/Reference/SoftwareSerial</a></p>
