The HC-05 Bluetooth module datasheet provides features, pin descriptions, specifications, and AT command set details.
The HC-05 Bluetooth module is a compact, class‑2 power level device with an integrated 2.4 GHz antenna and external 8 Mbit flash. It supports EDR mode with data rates up to 3 Mbps and includes a full‑speed USB 1.1 interface.
The document lists the module’s pinout, electrical parameters, test procedures, and the complete AT command set, making it a comprehensive reference for designers and developers.
| Sensitivity | -80 dBm |
|---|---|
| Output power range | -4 to +6 dBm |
| External flash memory | 8 Mbit |
| Operating voltage | 3.1 V ~ 4.2 V |
| Pairing current | 30 ~ 40 mA |
| Module size | 27 mm × 13 mm × 2 mm |
The sensitivity can reach –80 dBm.
It operates from 3.1 V to 4.2 V.
The module includes an external 8 Mbit flash.
The module measures 27 mm × 13 mm × 2 mm.