arduino hc-05 vs hc-06

The Arduino HC-05 and HC-06 are both Bluetooth modules designed for the Arduino platform, but they serve slightly different purposes. The HC-05 is a versatile Bluetooth module that can be used as a master or slave device, making it ideal for projects that require two-way communication. This module supports a range of Bluetooth profiles, including Serial Port Profile (SPP), allowing easy integration with various devices. It also has a built-in AT command set, enabling users to configure the module's settings without any coding. On the other hand, the HC-06 is a straightforward Bluetooth slave module, which means it can only act as a peripheral device and does not support the master role. This module is commonly used when a one-way connection is sufficient, such as connecting an Arduino board to a smartphone or tablet. Both modules are easy to use and offer reliable Bluetooth connectivity. However, the choice between the HC-05 and HC-06 depends on the specific requirements of your project. Whether you need bi-directional communication or a simple one-way connection, Arduino's HC-05 and HC-06 Bluetooth modules provide a cost-effective solution for incorporating wireless capabilities into your projects.