Arduino with Bluetooth to Control an LED!

Tutorial to control an LED with an app using an HC 05 bluetooth module.

May 2, 2020

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Components and supplies

1

HC-05 Bluetooth Module

8

Male/Male Jumper Wires

1

5 mm LED: Red

1

Arduino UNO

1

Resistor 1k ohm

Apps and platforms

1

Arduino IDE

1

MIT App Inventor

Project description

Code

The code for HC-05 and Arduino Interfacing

c_cpp

This is the code you have to type into the Arduino IDE. The comments are not necessary, but I have commented heavily for better understanding, especially for people just starting out Arduino.

Downloadable files

This is the voltage divider circuit between Arduino and HC-05.

This is the voltage divider circuit between Arduino and HC-05.

HC-05 to Arduino Connections

This is the way a circuit is meant to be formed between an HC-05 and an arduino.

HC-05 to Arduino Connections

This is the voltage divider circuit between Arduino and HC-05.

This is the voltage divider circuit between Arduino and HC-05.

HC-05 to Arduino Connections

This is the way a circuit is meant to be formed between an HC-05 and an arduino.

HC-05 to Arduino Connections

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