![Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics](https://m.media-amazon.com/images/I/51RpDA6LQkL._AC_.jpg)
Amazon.com: DSD TECH HC-05 Bluetooth Serial Pass-through Module Wireless Serial Communication with Button for Arduino : Electronics
![2pcs 5V USB RS232 Bluetooth Serial Adapter Communication Master Slave Board Module Bluetooth Communication Module HC 05|5v usb|bluetooth serialusb rs232 - AliExpress 2pcs 5V USB RS232 Bluetooth Serial Adapter Communication Master Slave Board Module Bluetooth Communication Module HC 05|5v usb|bluetooth serialusb rs232 - AliExpress](https://ae01.alicdn.com/kf/H6c5fa5608c6746bdbb83c8f778d7ba2eU/2pcs-5V-USB-RS232-Bluetooth-Serial-Adapter-Communication-Master-Slave-Board-Module-Bluetooth-Communication-Module-HC.jpg_Q90.jpg_.webp)
2pcs 5V USB RS232 Bluetooth Serial Adapter Communication Master Slave Board Module Bluetooth Communication Module HC 05|5v usb|bluetooth serialusb rs232 - AliExpress
![Connecting 2 Arduinos by Bluetooth using a HC-05 and a HC-06: Easy Method Using CMODE | Martyn Currey Connecting 2 Arduinos by Bluetooth using a HC-05 and a HC-06: Easy Method Using CMODE | Martyn Currey](http://www.martyncurrey.com/wp-content/uploads/2015/07/HC-05-to-HC-06-Easy-Method-Using-CMODE.jpg)