How to use GSM and Bluetooth Together To monitor Any Sensors wirelessly using Arduino

(Last Updated On: July 17, 2019)



In this Tutorial, you will learn how to use GSM and Bluetooth together to monitor any Sensors. In this project, the sensors can be monitored wirelessly using the GSM sim900A module and HC-05 Bluetooth module.  In this tutorial, we will cover

  1. Bluetooth settings using AT commands, like setting the pin code, changing the name of the Bluetooth module
  2. dht11 sensor datasheet, pinouts, and soldering
  3. GSM module pinouts and explanation
  4. Complete circuit diagram explanation
  5. Programming
  6. testing

For the complete step by step explanation Watch Video Tutorial given at the end of this Article.

The components and tools used in this project can be purchased from Amazon, the components Purchase links are given below:

Arduino Uno:
Mega 2560:
dht11 sensor:
HC-05 Bluetooth Module:
GSM sim900A:
5V regulated power supply/Adaptor for GSM sim900A:
lm7805 Voltage Regulator:
330 ohm resistors pack:
5v 2A adaptor:
2n2222 npn transistors:
10k Resistor:
lm7805 Voltage Regulator:
330-ohm resistors pack:
female DC power jack socket:
470 uf capacitors:
5×7 cm vero board:
female headers:
connection wires:
Super Starter kit for Beginners:
Jumper Wires:
Bread Board:
12v Adaptor:
PCB plate:
Variable Supply:
Digital Multimeter:
Vero Board / strip board:
Soldering iron kit: “best” You guys should definitely purchase this:
Solder wire:
Wire Stripper:
wire cutter:
PCB small portable drill machine:

Circuit Diagram:



Android cell phone application:gms and bluetooth together


Watch Video Tutorial:

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About the Author: Engr Fahad

My name is Shahzada Fahad and I am an Electrical Engineer. I have been doing Job in UAE as a site engineer in an Electrical Construction Company. Currently, I am running my own YouTube channel "Electronic Clinic", and managing this Website. My Hobbies are * Watching Movies * Music * Martial Arts * Photography * Travelling * Make Sketches and so on...

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