HC-05 Wireless Bluetooth Module without Base Plate
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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 or cards anywhere in India, plus COD if checkout offers it for your order.
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) if checkout offers it for your order. 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 takes 2-7 days after dispatch, 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 3-7 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