5pcs Bluetooth Module Wireless Bluetooth Serial Communication Module HC-05
$29.86
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“A competent component that handles standard use cases well. Not flashy, but reliable — which is what matters for project components.”
Our Review
After integrating the 5pcs Bluetooth Module Wireless Bluetooth Serial Communication Module HC-05 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 30m, 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.
For the price point, the 5pcs Bluetooth Module Wireless Bluetooth Serial Communication Module HC-05 delivers what you need without unnecessary complexity. Recommended for hobbyists and engineers working on projects where communication modules components are essential.
What We Like
- Long range communication reduces infrastructure costs
- License-free ISM band operation in most regions
- Well-documented AT command set or driver library
- Mesh networking capability for multi-node deployments
Watch Out For
- Regulatory restrictions vary by country and frequency
- PCB antenna range is shorter than external SMA antenna
- No built-in encryption on basic modules
Specifications
| Protocol | Bluetooth 2.0 Classic |
| Range | up to 30m |
| Interface | UART (TX/RX) |
| Data Rate | 2 Mbps |
| Operating Voltage | 3.3V |
| Profiles | HID + SPP |
The Verdict
“A competent component that handles standard use cases well. Not flashy, but reliable — which is what matters for project components.”
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