Program Arduino Wirelessly Over Bluetooth

Photo of hIOTron

Made by hIOTron / Automotive / IoT

About the project

In Arduino, we have to use the Bluetooth module to program it wirelessly

Project info

Difficulty: Moderate

Platforms: Arduino

Estimated time: 2 days

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

Test Accessory, Power Adapter Test Accessory, Power Adapter x 1
Ceramic Disc Capacitor, 0.1 µF Ceramic Disc Capacitor, 0.1 µF x 1
Resistor 2.21k ohm Resistor 2.21k ohm x 1
Resistor 1k ohm Resistor 1k ohm x 1
HC-05 Bluetooth Module HC-05 Bluetooth Module x 1
Arduino UNO Arduino UNO x 1

Software apps and online services

Arduino IDE Arduino IDE


About Project

HC05 Bluetooth Module

HC‐05 module is a Bluetooth Serial Port Protocol module, specifically manufactured for wireless communication between microcontrollers. It offers switching mode between master and slave mode configuration and communicates via Serial Communication at aa9600 baud rate which is easy to interface with controller. HC05 module operates on 3.3 V but we can attach it to 5V supply voltage as the module comes with onboard 5v to 3.3 V regulator.

Before attaching the Arduino to the computer, press the key button, and then attach it to the Arduino computer. Hold the key button till the Bluetooth module LED begins blinking at an interval of 2 seconds.

Use the Adapter or a 9V battery to power the Arduino. And then go to ‘Devices in your system, turn on the Bluetooth and then attach the Bluetooth module to your system.

Then next find the COM port for the HC05 Bluetooth module. You need to go to ‘Device Manager’, and analyze the COM Ports option. It will show two COM ports, one for incoming and the other for outgoing. We require to choose the second COM port number as we are uploading the program.

Then open the Arduino IDE and choose the blink program, choose the right com port and strike the upload button.

IoT Course will help you to learn more about Customized IoT Solutions.


Run a Program


Leave your feedback...