: Developers who want to avoid manual AT-command parsing.
: Abstracted methods for easier setup and high-level class interactions. Download : Available on GitHub - RoboCraft/Bluetooth_HC05 . HC0x_AT_Config :
The HC-05 operates at , while most Arduinos use 5V logic . To prevent damage, a voltage divider is recommended for the module's RX pin. Arduino Pin VCC Most breakout boards have a built-in regulator (3.6V–6V). GND Common ground. TXD Pin 2 (Software RX) Sends data to Arduino. RXD Pin 3 (Software TX) Receives data. Use a voltage divider . STATE High when connected, low when disconnected. EN/KEY Used to enter AT command mode. hc-05 bluetooth arduino library download
: Automatically identifies the module version and provides a user menu for quick configuration. Download : Accessible via the Arduino Library List . 2. Wiring the HC-05 to Arduino
: Initial module setup (changing name, PIN, or baud rate). : Developers who want to avoid manual AT-command parsing
: Handles command/data mode switching, detects baud rates automatically via findBaud() , and includes connected() methods to check if a device is paired. Download : Available on GitHub - jdunmire/HC05 . Bluetooth_HC05 by RoboCraft :
The HC-05 is a highly popular, low-cost Bluetooth-to-serial bridge that adds wireless capability to any Arduino project. While many developers use the built-in library for basic communication, dedicated HC-05 libraries can simplify complex tasks like automated configuration and master-mode pairing. 1. Top HC-05 Bluetooth Arduino Libraries to Download HC0x_AT_Config : The HC-05 operates at , while
If you need more than just simple data transmission, consider these specialized libraries: : Best for : Comprehensive control and AT command automation.