Reference: RBD-2317
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This Bluetooth module has the original CSR Chip
The HC-06 Bluetooth Module with Original CSR Chip is a premium wireless communication module tailored for reliable one-way Bluetooth serial transmission. Equipped with the genuine CSR BC417 chipset, this module ensures superior performance, stable connectivity, and extended compatibility across various platforms such as Arduino, Raspberry Pi, ESP32, and STM32. Designed to operate strictly in Slave Mode, the HC-06 is ideal for projects where the module needs to receive commands or data wirelessly. Its 4-pin UART interface makes it extremely easy to set up and use, while the onboard LED indicator helps in monitoring status in real-time. Perfect for building Bluetooth-enabled microcontroller projects, including robotics, remote control systems, and wireless data logging. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Built with Genuine CSR BC417 Chipset ensuring long-term stability and quality.
Bluetooth 2.0 + EDR Support with SPP for simple and fast UART serial communication.
Slave-Only Operation – ideal for remote-controlled applications or wireless reception.
Default 9600 Baud Rate – easily adjustable using AT commands.
Compact Size with LED Indicator for real-time connection status.
Easy Integration via 4-pin interface: VCC, GND, TXD, RXD.
Supports Multiple Platforms like Arduino, Raspberry Pi, ESP32, STM32, and more.
Up to 10 Meters Range in open space for effective short-range communication.
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Wireless Control of Arduino Projects from smartphones or computers.
Remote Device Communication for smart lights, relays, and motors.
Wireless Serial Monitoring & Debugging in microcontroller projects.
Bluetooth Data Logging for IoT and embedded systems.
Robotics & Automation Projects with wireless user interaction.
Home Automation with smartphone-controlled modules or switches.
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| General Specifications | |
| Chipset | CSR BC417 Original |
| Operating Voltage | 3.3V – 6V (onboard regulator) |
| Communication Interface | UART Serial |
| Default Baud Rate | 9600 bps (configurable via AT commands) |
| Bluetooth Version | 2.0 + EDR |
| Mode | Slave Only |
| Communication Range | Up to 10 meters (open space) |
| Pinout | VCC, GND, TXD, RXD |
| LED Indicator | Onboard for connection status |
| Dimensions | Compact 4-pin module |
| Compatibility | Arduino, Raspberry Pi, ESP32, STM32 |
| Shipment Weight | 0.0047 kg |
| Shipment Dimensions | 6 × 4 × 3 |
Please allow 5% measuring deviation due to manual measurement.
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One of the easiest ways to spot the difference between an original HC-06 module and a clone lies in the Bluetooth chip size and quality.
The original HC-06 uses a genuine CSR chip, which is slightly larger and provides more reliable Bluetooth communication, better range, and full AT command support.
Clone versions often come with smaller, unbranded chips, even falsely labeled as "CSR". These clones may lack proper protocol support, have limited AT commands, and exhibit unstable or slow connections.
Backed by a reliable CSR chipset
Better signal stability and communication range
Compact and easy to integrate into projects
Ideal for Arduino and microcontroller applications
Full support for configuration and firmware upgrades
| Feature | CSR Chip (Genuine) | Clone CSR Chip (Chinese or non-genuine) |
| Chipset | Original CSR (Cambridge Silicon Radio) UK chip | Copy or alternative low-cost chipset |
| Stability | High – better signal strength, less dropout | Lower – occasional pairing issues or dropouts |
| AT Command Reliability | Fully supported and well-documented | Sometimes inconsistent AT command behavior |
| Firmware Upgradability | Often upgradeable | Often locked or unreliable firmware |
| Price | Slightly higher | Cheaper |
| Module Name | HC Type | Chip Quality | Key Notes |
| 1. HC-05 CSR Chip | HC-05 | Generic CSR | May be reliable if true CSR, but unverified origin |
| 2. HC-05 Genuine CSR Chip | HC-05 | Genuine | Best quality among HC-05, fully supports Master/Slave |
| 3. HC-05 Clone CSR Chip | HC-05 | Clone | Might face instability, but works for basic use |
| 4. HC-06 CSR Chip | HC-06 | Generic CSR | Slave only, check CSR chip authenticity |
| 5. HC-06 Genuine CSR Chip | HC-06 | Genuine | Best among HC-06, reliable slave communication |
| 6. HC-06 Clone CSR Chip | HC-06 | Clone | Basic functionality, lower reliability |
For advanced control (Master/Slave, Arduino to Arduino):
→ HC-05 Genuine CSR Chip
For simple, reliable communication (e.g., Arduino to Android):
→ HC-06 Genuine CSR Chip
For budget or experiments:
→ Clone modules are fine, but test each thoroughly.
1 x Arduino Bluetooth Module HC-06 Original CSR Chip
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This Bluetooth module has the original CSR Chip
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