{"product_id":"hc-05-hc-06-bluetooth-module-remote-control-data-transfer","title":"HC-05 HC-06 Bluetooth Module – Remote Control \u0026 Data Transfer","description":"\u003ch2\u003eHC-05 \/ HC-06 Bluetooth Module for Remote Control \u0026amp; Wireless Data Transfer\u003c\/h2\u003e\n\u003cp\u003eTake your electronics projects to the next level with this versatile \u003cstrong\u003eHC-05 \/ HC-06 Bluetooth Module\u003c\/strong\u003e. Designed for seamless wireless communication, this compact module enables reliable remote control and data transfer between microcontrollers, Arduino boards, computers, and Bluetooth-enabled devices — all without a tangle of wires.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're a hobbyist, maker, or embedded systems developer, this module integrates effortlessly into your existing setup and gets you up and running fast. Available in 2 color options to suit your project style.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHC-05 \u0026amp; HC-06 Compatible:\u003c\/strong\u003e Supports both master (HC-05) and slave (HC-06) Bluetooth configurations for flexible project use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Interface Pins:\u003c\/strong\u003e Exports VCC, GND, TXD, RXD, and a reserved LED status output pin for easy microcontroller integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Connection Indicator:\u003c\/strong\u003e Onboard LED clearly shows Bluetooth status — flashing indicates no active connection; solid\/constant light confirms a live Bluetooth connection with open port\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKEY Pin Functionality:\u003c\/strong\u003e KEY pin is inactive in slave (HC-06) mode; active in master (HC-05) mode for AT command configuration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Flexible Form Factor:\u003c\/strong\u003e Ultra-small footprint means it fits into virtually any project enclosure without compromise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Ready:\u003c\/strong\u003e Ready to use straight out of the box — minimal setup required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works with Arduino, Raspberry Pi, STM32, and other popular microcontroller platforms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable Wireless Range:\u003c\/strong\u003e Provides a reliable Bluetooth connection for remote control and data streaming applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e HC-05 (Master\/Slave) \/ HC-06 (Slave)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e VCC, GND, TXD, RXD, LED status pin, KEY pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication Protocol:\u003c\/strong\u003e Bluetooth (Serial UART)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor Options:\u003c\/strong\u003e 2 available\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e Compact, flexible mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × HC-05 \/ HC-06 Bluetooth Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThis Bluetooth module is perfect for DIY electronics enthusiasts, engineering students, robotics builders, and professional developers looking for a dependable, easy-to-integrate wireless communication solution. It also makes a great gift for anyone passionate about maker culture and embedded systems.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on wireless communication standards and best practices in electronics design, visit the \u003ca href=\"https:\/\/www.nist.gov\/communications-technology-laboratory\/wireless-networks-division\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Wireless Networks Division\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the HC-05 \/ HC-06 Bluetooth Module and what does it do?\u003c\/h4\u003e\n\u003cp\u003eA: The HC-05 \/ HC-06 Bluetooth Module is a compact wireless communication module designed for serial data transfer and remote control between microcontrollers and Bluetooth-enabled devices. The HC-06 core exports key interfaces including VCC, GND, TXD, RXD, and a reserved LED status output pin, allowing your microcontroller to detect the Bluetooth connection state. The KEY pin is inactive on HC-06 (slave) mode.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I know when the Bluetooth module is connected?\u003c\/h4\u003e\n\u003cp\u003eA: The onboard LED provides a clear visual indicator: a \u003cstrong\u003eflashing LED\u003c\/strong\u003e means no Bluetooth connection is active, while a \u003cstrong\u003esolid, constant light\u003c\/strong\u003e means Bluetooth is successfully connected and the serial port is open and ready for data transfer.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The HC-05 \/ HC-06 Bluetooth Module is widely compatible with popular development platforms including Arduino, Raspberry Pi, STM32, and other UART-capable microcontrollers. It works as a drop-in wireless serial bridge, making integration into existing projects straightforward and fast.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between HC-05 and HC-06?\u003c\/h4\u003e\n\u003cp\u003eA: The HC-06 operates exclusively in slave mode, meaning it can only be discovered and connected to by a master device. The HC-05 supports both master and slave modes, giving it greater flexibility for device-to-device communication. Both share the same basic pin layout and UART communication protocol.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the HC-05 \/ HC-06 Bluetooth Module and what does it do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The HC-05 \/ HC-06 Bluetooth Module is a compact wireless communication module designed for serial data transfer and remote control between microcontrollers and Bluetooth-enabled devices. The HC-06 core exports key interfaces including VCC, GND, TXD, RXD, and a reserved LED status output pin, allowing your microcontroller to detect the Bluetooth connection state. 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