The HC-05 is a very cool module which can add two-way (full-duplex) wireless functionality to your projects. You can use this module to communicate between two microcontrollers like Arduino or communicate with any device with Bluetooth functionality like a Phone or Laptop.
HC-05 Bluetooth Module Pinout, Specifications, Default Settings, Replacements & Datasheet
HC-05 Wireless Bluetooth RF Transceiver Module
HC-05 HC-06 Wireless Bluetooth RF Transceiver Module RS232 TTL Base Board CF
The HC-05 Bluetooth module adds wireless communication to your project to communicate with any Bluetooth-enabled laptop or mobile device via
HC-05 Bluetooth Module
HC-05 Wireless Bluetooth Module Bluetooth Uart RS232 Serial Converter Module, Transmits Uart Data, Supports Bluetooth Connection by at Command. : Electronics
HC-05 Bluetooth Serial Pass Through Module - Master-Slave JY-MCU – CreateLabz Store
HC-05 Bluetooth Module 6pin with Button – Indian Hobby Center
Sensors Modules Bluetooth Module Hc 05
HC-05 Bluetooth Serial Pass Through Module - Master-Slave JY-MCU – CreateLabz Store
AITRIP 3PCS HC-06 RS232 Wireless Serial 4 Pin Bluetooth RF Transceiver Module Support Slave and Master Mode for Arduino : Electronics
Bluetooth Module HC06 at Rs 275/piece, Bluetooth Wireless Module in Bengaluru
HC-05 Bluetooth Module Pinout, Specifications, Default Settings, Replacements & Datasheet