Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port
DSD TECH HC-06 Wireless Bluetooth Serial Transceiver Support Module Slave and Master Mode for Arduino + 4PIN Dupont Cable
HiLetgo HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics
Interfacing HC-06 Bluetooth Wireless Module with Arduino - Electropeak
Bluetooth HC-06. Arduino. Send. Receive. Send text file. Multitouch. Image - Tutorials and Guides - MIT App Inventor Community
Data Transceiver Bluetooth Module HC-06 Manufacturers and Suppliers - Wholesale Products - FEASYCOM
Works with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth
HiLetgo HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino
HC06 module Bluetooth
HC-06 module Bluetooth compatible arduino
MIT Android App Using the Bluetooth HC06 to Connect to an Arduino Uno : 6 Steps - Instructables
Works with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth
3PCS HC-06 HC 06 Bluetooth Module RF Wireless Bluetooth Transceiver Module 4 Pins for Arduino
3PCS HC-06 HC 06 Bluetooth Module RF Wireless Bluetooth Transceiver Module 4 Pins for Arduino : Electronics
3PCS HC-06 HC 06 Bluetooth Module RF Wireless Bluetooth Transceiver Module 4 Pins for Arduino
Keyestudio HC-06 Wireless Bluetooth Module for Arduino
Bluetooth HC-06. Arduino. Send. Receive. Send text file. Multitouch. Image - #18 by Juan_Antonio - Tutorials and Guides - MIT App Inventor Community
Keyestudio HC-06 Wireless Bluetooth Module for Arduino
Arduino-er: Connect Arduino Due with HC-06 (Bluetooth Module)
Interfacing the HC-06 Bluetooth module with Arduino