Master/slave configurable: Enables flexible pairing and networking between devices
Transparent serial pipeline: Simplifies data sending and receiving as if using a wired connection
AT command mode: Allows advanced configuration of baud rate, role, and pin assignments
Onboard 3.3V regulator: Ensures safe operation with 5V microcontrollers
Wide operating temperature range: Functions reliably from -20°C to 75°C
Summarized by Shop
The HC-05 Bluetooth Module provides an easy way to add wireless communication to your microcontroller projects. Unlike the HC-06, the HC-05 can be configured as either a Master or Slave device, allowing it to initiate or receive connections. The module features a transparent serial pipeline (TX/RX), making it simple to send and receive da
Range
Up to 10 meters (Class 2)
Operating voltage
3.3V or 5V (with onboard 3.3V regulator)
Pinout
TXD, RXD, GND, VCC, KEY, EN
Module size
44 mm x 16 mm x 7 mm
Operating temperature
-20°C to 75°C
Baud rate
9600bps (default), supports up to 38400bps in AT mode
