Description
What it is
The HC-06 Bluetooth V2.0 module is a slave device compatible with Arduino that allows wireless communication between devices via serial connections.
Features
- Compatible with Arduino and other microcontrollers
- Enables data transmission via Bluetooth
- Ideally suited for beginners in electronic projects
What it is for
The HC-06 module is used to establish wireless connections between devices, facilitating remote control of projects. It is particularly useful for applications such as alarm systems that send notifications via Bluetooth.
Tutorial: How to use HC-06 Bluetooth V2.0 Module
The HC-06 module is a simple Bluetooth device compatible with Arduino that allows establishing wireless serial connections between devices. Ideal for beginners, it facilitates remote control of electronic projects.
What you need
- Arduino Uno or similar
- USB A-MicroB cable
- Soldering iron
Steps
- Connect the VCC of the HC-06 module to the 3.3V of the Arduino
- Connect the GND of the module to GND of Arduino
- Connect the TX of the module to the RX of Arduino (through pull-down resistor or transformer to protect the pins)
- Connect the RX of the module to the TX of Arduino (through pull-down resistor or transformer to protect the pins)
- Connect the VCC pin of the module to the 5V output of the Arduino
- Verify the connection through serial monitor
- Install the SoftwareSerial library (if necessary)
- Write and upload the Arduino sketch
Example code
// Collega TX del modulo a RX di Arduino (digitale pin 10)
// Collega RX del modulo a TX di Arduino (digitale pin 11)
SoftwareSerial bt(10, 11); // RX | TX
void setup() {
Serial.begin(9600);
bt.begin(9600);
}
void loop() {
if(bt.available())
Serial.write(bt.read());
}
Mini project
Create a remote alarm system that sends a notification via Bluetooth when activated.
Common mistakes
- Connection not established
- Error in the device MAC address
- Problems with the power supplied to the module
- Incorrect SoftwareSerial library configuration
Recommended accessories
- Pull-down resistors to protect the pins
- Bluetooth controllable RGB LED module
- Wireless sensors compatible with HC-06
- Protective electronic components (e.g., capacitors)
Frequently asked questions
How can I verify the connection?
Check the Arduino serial monitor to see if the data is being received correctly.
What other modules are compatible with HC-06?
Modules like RGB LEDs, wireless sensors, and LCD displays can be used in combination with HC-06.










Reviews
There are no reviews yet.