HC-05 6pin Bluetooth Module With Button

The HC-05 6pin Bluetooth Module adds wireless serial communication to Arduino, PIC and other microcontroller projects using classic Bluetooth (SPP). It connects to the board's TX and RX pins and works like a wireless serial cable to a phone, PC or another HC-05. This version has 6 pins and an on-board button for entering AT command mode, where you can change the name, PIN, baud rate and master or slave role.

HC-05 6pin Bluetooth Module Specifications

• Bluetooth: version 2.0 + EDR, Serial Port Profile (SPP)
• Role: master or slave, set with AT commands
• Supply voltage: 3.6 V to 6 V on the VCC pin
• Logic level: 3.3 V on TXD and RXD
• Default settings: name HC-05, PIN 1234, 9600 baud in data mode
• AT command mode: 38400 baud, entered by holding the button while powering on
• Range: about 10 m in open space
• Pins: EN, VCC, GND, TXD, RXD, STATE

HC-05 6pin Bluetooth Module Applications

• Controlling robots and RC cars from an Android phone app
• Sending sensor readings wirelessly to a phone or PC
• Linking two Arduino boards with a master and slave pair
• Home automation and remote switching projects
• Wireless serial debugging and data logging

What's in the Box

• 1 × HC-05 6-pin Bluetooth module with button

Tip: The RXD pin uses 3.3 V logic, so when connecting it to a 5 V Arduino TX pin, use a voltage divider such as 1 kΩ and 2 kΩ. The HC-05 uses classic Bluetooth, so it pairs with Android phones and PCs but not with iPhones.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.