--- product_id: 44165400 title: "HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino" brand: "hiletgo" price: "2900 kr" currency: ISK in_stock: true category: "Hi Letgo" url: https://www.desertcart.is/products/44165400-hiletgo-hc-05-wireless-bluetooth-rf-transceiver-master-slave-integrated store_origin: IS region: Iceland --- # 10m+ wireless range 3.6V-6V power input Master/Slave dual mode HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino **Brand:** hiletgo **Price:** 2900 kr **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your Arduino game with wireless freedom! ## Quick Answers - **What is this?** HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino by hiletgo - **How much does it cost?** 2900 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/44165400-hiletgo-hc-05-wireless-bluetooth-rf-transceiver-master-slave-integrated) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Mode Flexibility:** Switch between master and slave modes to connect with a wide range of Bluetooth 2.0 devices—ultimate versatility in one compact module. - • **Plug & Play Connectivity:** Includes 6-pin Dupont cable for quick, hassle-free wiring—get your project up and running in minutes. - • **Compact & Lightweight Design:** At just 3.5g and 37.3x15.5mm, this module fits perfectly into any prototype or embedded system without bulk. - • **Seamless Bluetooth Integration:** Effortlessly add wireless control to your Arduino projects and impress your peers with smart automation. - • **Reliable Communication Protocol:** Supports standard 9600 baud rate serial communication with built-in AT command mode for easy customization and control. ## Overview The HiLetgo HC-05 is a compact, lightweight Bluetooth 2.0 transceiver module designed for Arduino projects. Operating at 3.6V-6V, it supports both master and slave modes, enabling flexible wireless serial communication up to 10 meters. Featuring a 6-pin interface and AT command mode, it allows easy integration and customization for seamless device control, making it a top choice for DIY electronics enthusiasts. ## Description Module parameters: 1.PCB Size: 37.3mm (Long) *15.5mm (wide) 2. Weight: 3.5g 3. Input voltage: 3.6V--6V, prohibit exceeding 7V 4. Leads 6 feet: EN/VCC/GND/RXD/TXD/STATE (Bluetooth state leads, not connected output low level, the output high level after connection) 5. With the connection status indicator, LED flash indicates no Bluetooth connection; Led slow flash indicates enter at command mode 6. On-board 3.3V voltage regulator chip, input voltage DC 3.6V-6V; When not paired, current about 30mA (due to LED lights flashing, current in the state of change); After the pairing succeeds, the current is about 10mA 7. Effective transmission distance of 10 meters in open area, more than 10 meters is possible, but not to ensure the quality of the connection 8. After pairing succeeds, can be used as full duplex serial port. No need to understand any Bluetooth protocol, but only support 8-bit data bits, 1-bit stop bits, no parity communication format. This is also the most commonly used communication format, does not support other formats! 9. Press the key and then power up the Bluetooth module to enter at mode, set parameters and query information 10. Can switch host and machine mode from at command 11. The module default baud rate is 9600, the default pairing password is 1234, the default name is HC-05 Wiring method: VCC: Connect the power supply positive GND: Connecting the cathode RXD: The receiver, the Bluetooth module receives data from other devices, and the sending end TXD of the other devices normally TXD: Send end, Bluetooth module sends data to other equipment; the receiving end RXD of the other equipments normally En: To enable the end, need to enter the at mode when 3.3VNote: this item doesn't works with iOS.Package included: 1* HC-05 6 Pin Wireless Bluetooth RF Transceiver Module Serial BT Module for Arduino ## Features - The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module - HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED. - Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234 - Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode. - 6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071YJG8DR | | Best Sellers Rank | #91 in Bluetooth Network Adapters | | Brand | HiLetgo | | Color | 1pc | | Compatible Devices | Desktop | | Customer Reviews | 4.4 out of 5 stars 383 Reviews | | Data Link Protocol | Bluetooth | | Data Transfer Rate | 9600 Bits Per Second | | Hardware Interface | Bluetooth | | Item Weight | 3.5 Grams | | Manufacturer | HiLetgo | | Mfr Part Number | 3-01-1291-UK-1PC | | Model Number | 8541554474 | ## Product Details - **Brand:** HiLetgo - **Color:** 1pc - **Compatible Devices:** Desktop - **Data Link Protocol:** Bluetooth - **Data Transfer Rate:** 9600 Bits Per Second - **Hardware Interface:** Bluetooth - **Item Weight:** 3.5 Grams - **Manufacturer:** HiLetgo - **Number of Items:** 1 - **Number of Packs:** 1 ## Images ![HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino - Image 1](https://m.media-amazon.com/images/I/612CH8mJu-L.jpg) ![HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino - Image 2](https://m.media-amazon.com/images/I/61fIAm4r6tL.jpg) ![HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino - Image 3](https://m.media-amazon.com/images/I/61dlsAhhjmL.jpg) ![HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino - Image 4](https://m.media-amazon.com/images/I/71xYTVQNw1L.jpg) ![HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino - Image 5](https://m.media-amazon.com/images/I/61ts-+uwk0L.jpg) ## Frequently Bought Together - HiLetgo HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects - Arduino Uno REV3 [A000066] --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/44165400-hiletgo-hc-05-wireless-bluetooth-rf-transceiver-master-slave-integrated](https://www.desertcart.is/products/44165400-hiletgo-hc-05-wireless-bluetooth-rf-transceiver-master-slave-integrated) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-07-07*