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HC-05 Bluetooth Module
GenericHC-05
Classic Bluetooth (SPP) serial module — pair it and it acts as a wireless UART. 3.3V logic on RXD (divide from 5V); the KEY pin enters AT command mode.
In stock
Specifications
0No specs listed.
Pinout
6| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | EN/KEY | GPIO | HIGH at power-on = AT mode |
| 2 | VCC | POWER | 3.6-6V supply |
| 3 | GND | GND | Ground |
| 4 | TXD | UART | UART TX (to MCU RX) |
| 5 | RXD | UART | UART RX (3.3V) |
| 6 | STATE | GPIO | Connection status out |
Interactive pinout
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HC-05
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