HC-05 Bluetooth transceiver Module (6-pin)
$23.99
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“A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.”
Our Review
After integrating the HC-05 Bluetooth transceiver Module (6-pin) into several test builds, we found it to be a capable component for the price. Key specs include Protocol: Bluetooth 2.0 Classic, Range: up to 100m (BLE 5.0), Interface: UART (TX/RX).
Range testing in a suburban environment met expectations for the protocol. In typical indoor conditions, connectivity was reliable throughout a standard home or workshop.
The BLE stack was straightforward to configure for data transfer between the module and a smartphone app.
The HC-05 Bluetooth transceiver Module (6-pin) earns its place in the parts bin. Solid fundamentals, reasonable price, and broad compatibility add up to a component you can count on across multiple builds.
What We Like
- Onboard antenna works out of the box
- Long range communication reduces infrastructure costs
- Configurable data rate and TX power for range vs. speed tradeoff
- Simple serial/SPI interface for easy MCU integration
Watch Out For
- No built-in encryption on basic modules
- Requires paired module on the receiving end
- Limited data throughput compared to WiFi
Specifications
| Protocol | Bluetooth 2.0 Classic |
| Range | up to 100m (BLE 5.0) |
| Interface | UART (TX/RX) |
| Data Rate | 3 Mbps |
| Operating Voltage | 3.3V |
| Profiles | GATT/GAP |
The Verdict
“A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.”
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