--- product_id: 63593551 title: "AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3)" brand: "azdelivery" price: "VT9675" currency: VUV in_stock: true reviews_count: 13 category: "Az Delivery" url: https://www.desertcart.vu/products/63593551-azdelivery-hc-05-wireless-serial-bluetooth-rf-transceiver-pass-through store_origin: VU region: Vanuatu --- # AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) **Brand:** azdelivery **Price:** VT9675 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) by azdelivery - **How much does it cost?** VT9675 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/63593551-azdelivery-hc-05-wireless-serial-bluetooth-rf-transceiver-pass-through) ## Best For - azdelivery enthusiasts ## Why This Product - Trusted azdelivery brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Product Description This AZ-Delivery HC-05 module is a very powerful Bluetooth device that can be set as either a master or a slave, while the HC-06 can only be set as a slave device. With our Bluetooth transceiver device, you can convert a serial interface into a Bluetooth interface. Usually, this device comes in handy if you want to communicate with a smartphone, a microprocessor mounted on microcontroller boards, a personal computer or other devices equipped with a Bluetooth connection. Bluetooth modules are a very convenient type of communication when you don't want to transfer data over cables. Particularities Details Range of up to 10 meters LED installed for status display Thanks to the class 2 Bluetooth, this module has a faster transfer rate and a larger MTU. Made from resistant components, this Bluetooth RF transceiver is the right choice for a variety of projects. Two modes of operation - can be used both as a transmitter and as a receiver. Technical Data Easy connection Communication with the Bluetooth module takes place via a serial interface for an easy and secure connection with one Microcontroller or PC enabled. Easy programming The available open-source libraries allow easy programming and optimal integration of the module in combination with the microcontroller. Quick-start guide When buying one of our high-quality products, you will also receive an inclusive e-book for a quick introduction to the world of Microelectronics. Exciting DIY projects You can find many craft projects in our blogs on the topics of programming and microelectronics. Every week, we present you with new DIY ideas and product applications. Support from our experts Find all technical details about these products in our e-books and blog posts. If you have any further questions, please do not hesitate to contact our tech support at your disposal. Fast and safe shipping Because client satisfaction and trust are our top priority, we always offer fast, safe, and reliable delivery with the highest quality standards. Review: Baud rate needs to be correct - I used this for remotely capturing microcontroller serial debug to laptop. The debug was at 57600 baud and at first all I got was garbage in my laptop terminal program. I discovered that the 'pass-through' defaults to 9600 baud rate on RX/TX and if another baud rate is used then the bluetooth end will indeed be garbage. So, to change the transceiver baud rate (1) power-cycle transceiver with pushbutton depressed so that it enters command mode (2) using a terminal program (9600, 8N1, appends CR/LF) enter "AT" and ensure "OK" is returned (3) enter "AT+UART=57600,1,0" to change baud rate to 57600. The change is retained after power down. It should then work! Review: Easy Bluetooth connect for MCU's (Atmel devices, Arduinos, R.Pi etc) - Straight-forward to implement - used mine on a 'Pololu' MCU with USB connect, and wanted to add Bluetooth for 'phone connect (using a simple Android APK built using the MIT 'App Inventor'). The item simply works as expected, no drama! ## Features - ✅ Long range Bluetooth connection distance: the HC-05 Bluetooth module will provide you the connection range up to 10 meters by using Bluetooth class 2, and can be used both as transmitter and receiver which comes in handy for many projects - ✅ Easy operation: Thanks to many ready-to-use open source libraries, this Serial Port Bluetooth Full Duplex Module can be easily programmed in AT mode via the Arduino-IDE. - ✅ Compatible: Using the Serial Port Protocol (SPP) it is easy to pair this handy device to communicate between two microcontrollers or any device with Bluetooth functionality. - ✅ High Performance: This Bluetooth module from AZ-Delivery has -80dBm sensitivity, +4dBm RF transmit power, PIO control and UART interface with programmable baud rate. - ✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BHRGJLJ | | Best Sellers Rank | 37,781 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 264 in Motherboards | | Brand | AZDelivery | | Brand Name | AZDelivery | | Color | Black, Green, Silver | | Colour | Black, Green, Silver | | Compatible Devices | Desktop | | Compatible Operating System Family | Linux | | Compatible devices | Desktop | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 1,367 Reviews | | Data Link Protocol | Bluetooth | | Data link protocol | Bluetooth | | Hardware Interface | Bluetooth, IDE, Radio Frequency | | Hardware interface | Bluetooth, IDE, Radio Frequency | | Manufacturer | AZDelivery | | Manufacturer Part Number | 3 | ## Images ![AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) - Image 1](https://m.media-amazon.com/images/I/81ZrBuKV8JL.jpg) ![AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) - Image 2](https://m.media-amazon.com/images/I/716xQA87y8S.jpg) ![AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) - Image 3](https://m.media-amazon.com/images/I/715SaZpLvCS.jpg) ![AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) - Image 4](https://m.media-amazon.com/images/I/71OO+0rktrS.jpg) ![AZDelivery HC-05 Wireless Serial Bluetooth RF Transceiver Pass-Through RS232 Communication Port Module HC05 6 Pin Master-Slave Extender Plate compatible with Arduino Including E-Book! (Pack of 3) - Image 5](https://m.media-amazon.com/images/I/71EJ4PSx7YS.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Baud rate needs to be correct *by P***Y on 1 January 2022* I used this for remotely capturing microcontroller serial debug to laptop. The debug was at 57600 baud and at first all I got was garbage in my laptop terminal program. I discovered that the 'pass-through' defaults to 9600 baud rate on RX/TX and if another baud rate is used then the bluetooth end will indeed be garbage. So, to change the transceiver baud rate (1) power-cycle transceiver with pushbutton depressed so that it enters command mode (2) using a terminal program (9600, 8N1, appends CR/LF) enter "AT" and ensure "OK" is returned (3) enter "AT+UART=57600,1,0" to change baud rate to 57600. The change is retained after power down. It should then work! ### ⭐⭐⭐⭐⭐ Easy Bluetooth connect for MCU's (Atmel devices, Arduinos, R.Pi etc) *by B***L on 22 January 2024* Straight-forward to implement - used mine on a 'Pololu' MCU with USB connect, and wanted to add Bluetooth for 'phone connect (using a simple Android APK built using the MIT 'App Inventor'). The item simply works as expected, no drama! ### ⭐⭐⭐⭐ They work but the rubbish written about using these is amazing! *by L***Y on 4 December 2022* I won't get the last hours back from trying to get these units working and was close to thinking they must all (3) be faulty! Firstly the order was again good from AZ. I know they point out the documentation however this is just the normal stuff found widely. I wanted two of these as a master & slave. The main issue with these HC-05 units is the generally helpful but inaccurate/inconsistent information out there, with most the tutorials insisting that you 'connect TX to TX and RX to RX' - nope, these work how you would expect every other serial interface - you connect the RX to the TX and TX to the RX. I was beginning to think it was some trick to stop anyone entering the AT mode. Maybe some boards were mis-printed in the past? However these very common versions that AZ are providing (with the 'tick' on the plastic sleeve) need RXTX & TXRX to work. Unless simply used to connect to a bluetooth device using the default HC05 bluethooth id, you will want to configure them with the AT commands. The internet was full of broken souls struggling to do this... and I was nearly one of them! However for these boards there are two pretty simple ways to get them into AT command mode: Option 1) connect the positive supply voltage (3v or more) to the 'EN' pin, connect the TX-RX and RX-TX and power up. The LED should pulse quite slowly to show it is in this mode. In this mode it ALWAYS CONNECTS at 38400 baud. I did try terminal emulators/serial monitors and the connecting to the TX/RX USB pins, but all failed however using a 3.3V Arduino, I had no issue sending the AT commands (with the necessary \r\n end of line chars) and in my case I set up the master mode and got it to auto-connect Option 2) power up as normal and then press the button (which in effect puts 3v to the EN pin) and hold the pin in while using the AT commands. The LED carries on blinking at the normal rate however it responds to the AT commands again, but in this mode, it connects at the normal configured speed with a factory default of 9600 baud. I used the AT commands to bring it in line with the Option 1 mode (38400) to simplify it for me. I still don't know why I never got a terminal emulator to work as I did have the 'send CRLF' ticked however the two units are now paired with an Arduino on each end. They pair-up within about 30 seconds and just seem to work from there. Key take-ways these need RX-TX connections and have two simple modes to allow AT commands. The only item I have been unable to set is the pin code which fails in either of these modes. --- ## 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.vu/products/63593551-azdelivery-hc-05-wireless-serial-bluetooth-rf-transceiver-pass-through](https://www.desertcart.vu/products/63593551-azdelivery-hc-05-wireless-serial-bluetooth-rf-transceiver-pass-through) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-06-18*