HC-05 Wireless Bluetooth Module without Base Plate
HC-05 Wireless Bluetooth Module without Base Plate
The HC-05 Wireless Bluetooth Module is a serial-to-Bluetooth bridge that enables wireless communication between microcontrollers and devices. It operates in both master and slave modes, making it suitable for a range of wireless control and data transfer projects.
Specifications
- Bluetooth version: 2.0 + EDR
- Operating voltage: 3.6V to 6V
- Logic level: 3.3V
- Interface: UART (serial)
- Default baud rate: 9600 bps
- Communication range: up to 10 meters
- Dimensions: 27mm x 13mm x 2mm (without base plate)
- Pin count: 6 pins (EN, VCC, GND, TXD, RXD, STATE)
- Master/slave mode configurable via AT commands
Compatible with
- Arduino Uno, Mega, Nano
- ESP32 and ESP8266
- Raspberry Pi (via USB-to-TTL adapter)
- STM32
- PIC and AVR microcontrollers
What you can build with it
- Wireless robot control system using a smartphone app
- Bluetooth-based home automation to switch lights or fans
- Wireless data logger that sends sensor readings to a phone
Built and Backed by Compoden
Every HC-05 module from Compoden comes with an AI build companion delivered via QR code, email, or WhatsApp. It helps you wire and program this module into a working project step by step. With 10 years of experience supplying makers and institutions across India, we ensure you get genuine parts and reliable support. Pay your way: UPI, cards, or Cash on Delivery, anywhere in India.
How do I configure the HC-05 as master or slave?
You can configure the HC-05 using AT commands over a serial terminal. Connect the module to an Arduino or USB-to-TTL adapter, enter AT mode by holding the EN pin high during power-up, and send commands like AT+ROLE=0 for slave or AT+ROLE=1 for master.
What is the difference between HC-05 and HC-06?
The HC-05 supports both master and slave modes, while the HC-06 is slave-only. The HC-05 is more versatile for projects requiring two-way communication or initiating connections from the module itself.
What payment options are available for HC-05 Wireless Bluetooth Module?
You can pay using UPI, credit/debit cards, or Cash on Delivery (COD). All payment methods are available across India.
How long does delivery take?
We ship HC-05 Wireless Bluetooth Module across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery typically takes 3–7 business days depending on your location.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items