Erostek MK-312BT / ET-312BT HC-05 Serial Bluetooth Upgrade

The HC-05 Serial Bluetooth Upgrade adds wireless serial communication and remote-control functionality to your MK-312BT. This upgrade is designed for users who wish to access the device wirelessly from compatible Android applications without requiring a direct USB connection. Based on the proven HC-05 Bluetooth 2.0 + EDR module, the upgrade provides reliable serial communication and seamless integration with existing MK-312BT control software.

Product Features:
– Module: HC-05 Bluetooth 2.0 + EDR
– Compatibility: MK-312BT / ET-312BT
– Function: Wireless Serial Communication
– Remote Control: Compatible with existing Android serial control software
– Wireless Operation: No USB cable required during use
– Proven Technology: One of the most widely used Bluetooth serial modules worldwide
– Factory Installation: Available pre-installed when ordered with a new MK-312BT
– Retrofit Upgrade: Compatible with previously delivered MK-312BT devices

Why Choose the HC-05 Upgrade?
While Bluetooth Audio 5.0 is now the standard wireless audio solution for the MK-312BT, many advanced users still prefer the HC-05 module for wireless serial communication, device monitoring and remote-control applications. The HC-05 creates a transparent serial connection between the MK-312BT and compatible Android software, providing additional flexibility for configuration and control.

Upgrade Existing Devices
The HC-05 upgrade is not limited to newly purchased MK-312BT units. Most previously delivered MK-312BT devices can also be upgraded with the HC-05 module. Customers who already own a compatible MK-312BT may install the module themselves or contact us for upgrade options and installation assistance.

Compatibility
– Android Smartphones and Tablets: Supported
– Windows PCs with Bluetooth: Supported
– iPhone / iPad: Not supported for serial communication
– Bluetooth Audio Streaming: Not supported (Bluetooth Audio 5.0 recommended)

Included in the Box:
– 1x HC-05 Serial Bluetooth Module
– 1x Installation Guide

Notes:
– Designed exclusively for MK-312BT / ET-312BT devices
– Bluetooth pairing code: 0000
– Android device compatibility depends on the software used
– For wireless audio streaming, the Bluetooth Audio 5.0 Upgrade is recommended instead

Expand Your MK-312BT Today!
Add wireless serial communication and remote-control functionality to your MK-312BT with the proven HC-05 Bluetooth module. Whether installed in a new device or added to an existing unit, the HC-05 remains a reliable solution for advanced users who require wireless serial connectivity.