🔌 Connect Effortlessly, Innovate Limitlessly! Powered by CSR BC417 for reliable performance. Master & Slave modes for versatile connectivity. Operates seamlessly between 3.6V to 6V. Easily switch modes with AT commands. Default baud rate of 9600 for quick setup. 3.6V-6V Power Bluetooth V2.0 9600 Baud Rate The DSD TECH HC-05 Bluetooth Serial Pass-through Module is a versatile wireless communication tool designed for Arduino enthusiasts. It features a dual-mode capability, allowing users to switch between master and slave modes effortlessly. With a robust CSR BC417 chip and a wide operating voltage range, this module ensures reliable performance and easy integration into your projects.