HC-05 Bluetooth Module without Board for Arduino Projects
Brand: satkit
VAT included (Ex VAT: 4.00 €)
Product description
The HC-05 Bluetooth module without board compatible with Arduino is a device that allows wireless connection of Arduino-based electronic projects to Android smartphones, mobile phones or PCs via Bluetooth 2.0. Its use enables transparent data transmission through a serial port, simplifying programming and communication with the microcontroller.
Main features:
- Compatible with Arduino and other microcontrollers such as PIC, Raspberry Pi, ESP8266, ESP32, STM32.
- Power supply with voltage between 3.6V and 6V thanks to its integrated 3.3V regulator.
- Bluetooth 2.0 communication, compatible with Android smartphones (not compatible with iPhone).
- Configuration via AT commands to adjust parameters and operating modes.
- Configurable master or slave mode for various applications.
- Transparent data transmission via serial port.
Technical specifications:
- Supply voltage: 3.6V to 6V (internally regulated to 3.3V).
- Interface: UART serial for communication with microcontrollers.
- Bluetooth standard: Bluetooth 2.0 + EDR.
- Operating modes: master and slave (configurable).
- Compatible with AT commands for advanced configuration.
Typical uses:
- Robotics projects that require remote control via Bluetooth.
- Home automation for wireless control of devices with Arduino.
- Communication between two electronic projects via Bluetooth.
- Applications that require wireless connection with Android smartphones or PC.
Compatibility:
This module works perfectly with Arduino boards and microcontrollers that support UART serial communication. It is compatible with Android smartphones and PCs with Bluetooth 2.0 or higher. It is not compatible with iPhone devices due to the limitations of the Bluetooth standard used.
Master and slave mode:
The module comes factory-set as a slave, ready to accept incoming connections. Using AT commands, it can be configured to work as a master, allowing it to initiate connections with other Bluetooth devices. To connect two projects, one must be in master mode and the other in slave mode.
Conclusion:
The HC-05 Bluetooth module without board is an economical and efficient solution for adding Bluetooth wireless communication to Arduino projects and other microcontrollers. Its ease of configuration and compatibility make it ideal for makers and developers looking to implement remote control and wireless communication in their projects.
- Compatible with Arduino, PIC, Raspberry Pi, ESP8266, ESP32 and STM32.
- Power supply between 3.6V and 6V with internal 3.3V regulator.
- Bluetooth 2.0 compatible with Android smartphones and PC.
- Configuration via AT commands for master and slave modes.
- Transparent serial port transmission for easy integration.
Customer Questions & Answers
What is the typical range and Bluetooth connection performance under standard conditions?
The HC-05 complies with Bluetooth 2.0 + EDR Class 2, which provides a typical range of 5 to 10 metres in interference-free, line-of-sight conditions. Enclosed spaces, walls or sources of electromagnetic noise can reduce the actual range.
What exactly is included in the package, and what are the module's dimensions and weight?
The package includes only the HC-05 Bluetooth module, without a base board or cables. Its approximate dimensions are 43 mm x 16 mm x 7 mm and it weighs around 4 g. No accessories are included.
What precautions should I take for correct installation and to avoid damaging the HC-05?
It is recommended to power the module between 3.6 V and 6 V (maximum current draw: 50 mA) and connect the RX pin through a voltage divider if using 5 V logic. Avoid soldering at high temperatures or for prolonged periods, as the module is sensitive to heat. Do not expose the HC-05 to moisture or electrostatic discharge.
Are there any compatibility limitations with current mobile devices or iOS systems?
The HC-05 is only compatible with classic Bluetooth 2.0/2.1/3.0 devices, such as most Android phones. It does not work with iPhone or iOS devices, as these require Bluetooth Low Energy (BLE) for user communication.
How do I connect the HC-05 Bluetooth module to Arduino?
It connects directly to the Arduino UART pins (TX and RX), respecting the voltage levels, and is powered with a voltage between 3.6V and 6V. Communication is carried out through the serial port.
What is the difference between the HC-05 and HC-06 modules?
The HC-05 can be configured as master or slave, while the HC-06 only works as a slave. The HC-05 is more versatile for device-to-device connections.
Can this module be used with an iPhone?
No, the HC-05 Bluetooth module is not compatible with iPhone devices due to the specifications of the Bluetooth 2.0 standard it uses.
How do I configure the HC-05 Bluetooth module?
It is configured using AT commands sent through the serial port to change parameters such as the name, transmission speed and master or slave mode.
What is the price of the HC-05 Bluetooth module without board?
The current price is 4.00 EUR according to the Satkit store.