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Bluetooth Serial Transceiver HC-05 (ZG)
- Brands China Code: BT-HC-05-ZG
This is the popular Bluetooth module, HC05 which can be configured as master or slave.
It's very easy to add wireless serial connectivity for your device with this module because it comes with UART interface. Example projects for Arduino and other boards are widely available. Once it is paired with other Bluetooth devices, it works like normal UART to exchange data. We called this transparent mode.
This module has a built-in 3.3V voltage regulator and helps to break out the important pins (STATE, RX, TX, GND, VCC, and EN). Based on CSR BC4 chip, Bluetooth V2.0 + EDR. It is default loaded with SPP (Serial Port Profile) which becomes UART when it is connected via Bluetooth link. And there is a push button on HC-05 to set it to AT mode. Do check the video on how to use the button.
Note: This version HC05(ZG) module's EN pin is not connected to the onboard button.
Packing List: