--- product_id: 330394450 title: "ALMOCN 3pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino" brand: "almocn" price: "FREE" currency: INR in_stock: false reviews_count: 1 url: https://www.desertcart.in/products/330394450-almocn-3pcs-hc-05-wireless-bluetooth-rf-transceiver-master-slave store_origin: IN region: India --- # 3.6V-6V Power Master/Slave Mode Bluetooth V2.0 SPP ALMOCN 3pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino **Brand:** almocn **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🚀 Elevate Your Projects with Bluetooth Magic! ## Quick Answers - **What is this?** ALMOCN 3pcs HC-05 Wireless Bluetooth RF Transceiver Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module for Arduino by almocn - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/330394450-almocn-3pcs-hc-05-wireless-bluetooth-rf-transceiver-master-slave) ## Best For - almocn enthusiasts ## Why This Product - Trusted almocn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Chipset:** Powered by CSR BC417 for reliable performance. - • **Versatile Control:** Control gadgets like switches and LEDs from your smartphone. - • **Customizable Modes:** Switch between master and slave modes with AT commands. - • **User-Friendly Setup:** Includes Dupont cable for effortless connections. - • **Seamless Connectivity:** Easily integrate Bluetooth into your Arduino projects. ## Overview The ALMOCN HC-05 Wireless Bluetooth Module is a versatile 6-pin transceiver designed for seamless integration with Arduino projects. Utilizing the CSR BC417 chip and Bluetooth V2.0 SPP protocol, it operates within a voltage range of 3.6V to 6V, allowing for easy control of various gadgets via smartphone. The included Dupont cable simplifies connections, while AT commands enable flexible switching between master and slave modes. ## Description Package3 X HC-05 ModuleThe Core module is HC-05 bluetooth 2.0 module.By using this Bluetooth module, you can quickly add Bluetooth features to your arduino project.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.Please note: This is a classic Bluetooth 2.0 module, it is not compatible with iphone or ipad If you need to use iphone or ipad to control your arduino project. You may need a Bluetooth 4.0 ble module (such as SH-HC-08 Bluetooth 4.0 ble module ## Features - Use the CSR BC417 mainstream bluetooth chip, bluetooth V2.0 SPP protocol standards - Module working voltage 3.6 V to 6V - 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. - 6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board - Can be switched via AT commands as master or slave mode , the device can be connected via AT commands specified ## Images ![ALMOCN 3pcs 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/71-5gXAsvrS.jpg) ![ALMOCN 3pcs 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/41-Jm-pDAzL.jpg) ![ALMOCN 3pcs 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/41uAi5aGR8S.jpg) ![ALMOCN 3pcs 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/410lvz9WQHL.jpg) ![ALMOCN 3pcs 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/417CMB++LGL.jpg) ## Customer Reviews ### ⭐⭐ 2.0 out of 5 stars An HC-06 in disguise, so only Client mode *by L***Y on Reviewed in the United Kingdom on 5 January 2023* There seem to be two flawed variants of these boards being sold on all the normal sites. In this case this supplier supplied the two smaller chip at the top variety and not the larger chip version in their photo even though I doubt they would overly know one from the other. These pretend to be HC-05 when you interrogate the chip via the AT commands however they refuse to change into master mode. I would have returned them however I thankfully bought some from a previous supplier that operated as HC-05 and worked in both master and client mode but with other issues!As a client (in effect HC06 device), allowing an Arduino/Pi to connect to a master device - maybe a phone these will work fine.For completeness the version in this suppliers description (second photo with the larger top chip) do work in Master mode however 1) they won't allow the password to be changed 2) they allow auto connection of a known slave device however incorrectly if they do not see a connection soon they will allow any device to connect to them which is a (security) fault.However in summary, the device provided was not a functional HC-05 (master mode) device and hence the rating. --- ## 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.in/products/330394450-almocn-3pcs-hc-05-wireless-bluetooth-rf-transceiver-master-slave](https://www.desertcart.in/products/330394450-almocn-3pcs-hc-05-wireless-bluetooth-rf-transceiver-master-slave) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-08*