Bluetooth Module Breakout (HC-05)

Model No: WIR-00013

TK. 582.4

Availability: In stock


Category: Bluetooth


Comes with 3 Days Replacement Warranty. Click here to check our warranty policy.

This version of the popular Bluetooth uses the HC-05 module. This works as a serial (RX/TX) pipe. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target.

The remote unit can be powered from 3.3V up to 6V for easy battery attachment. All signal pins on the remote unit are 3V-6V tolerant. No level shifting is required. You can directly connect it to a 3.3V/5V microcontroller. You'll need a usb to serial converter to connect it to a computer.

By default, this bluetooth module is set to be on SLAVE mode. But you can reconfigure it with proper AT commands to use it as a MASTER device.

● Bluetooth protocal:  Bluetooth Specification v2.0+EDR
● Frequency:  2.4GHz ISM band
● Modulation:  GFSK(Gaussian Frequency Shift Keying)
● Emission power:  ≤4dBm, Class 2
● Sensitivity:  ≤-84dBm at 0.1% BER
● Speed: Asynchronous:  2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps
● Security:  Authentication and encryption
● Profiles:  Bluetooth serial port
● Power supply: +3.3VDC 50mA
● Working temperature: -20 ~ +75 Centigrade
● Dimension: 26.9mm x 13mm x 2.2 mm

Question & Answer

Total 54 questions

Q: need this one.when ths will be available? Questioned by imrankhan, 06-Apr-2014

Q: need this one.when ths will be available? Questioned by imrankhan, 06-Apr-2014

Q: ভাই, এটা কবে আসবে, জানতে পারি? Questioned by mamunidl, 29-Apr-2014

Q: ভাই, এটা কবে আসবে, জানতে পারি? Questioned by mamunidl, 29-Apr-2014

Q: When will it come, may I know? Questioned by mamunidl, 29-Apr-2014

We are selling this with breakout board now. Answered by A.R, 02-May-2014 21:29 PM

Q: Can We connect it from Mobile or PC. Questioned by risajal, 25-Jun-2014

It can be interfaced with mobile or PC if your mobile or PC supports bluetooth. Answered by A.R, 25-Jun-2014 15:17 PM

Q: How to change it pairing Pass from "1234" to other pass. Questioned by risajal, 29-Jun-2014

Do you mean the pin code? Answered by A.R, 29-Jun-2014 15:21 PM

Q: How to active AT command mode? I try "" but i cant work. please help me. Questioned by risajal, 30-Jun-2014

Have you followed the datasheet in the 'documents' section? Please let us know. Answered by A.R, 01-Jul-2014 09:55 AM

Q: what work do EN pin and state pin? Questioned by risajal, 30-Jun-2014

Q: yes the pin code. Questioned by risajal, 30-Jun-2014

Q: can it be used with arduino uno Questioned by yousuf_amin, 09-Aug-2014

Yes. Answered by A.R, 10-Aug-2014 09:50 AM

Q: what is the connecting range of bluetooth module hc-05? Questioned by nashin, 26-Nov-2014

About 10 metre Answered by mmislam2014, 04-Dec-2014 11:59 AM

Q: this is blinking led but cannot found by bluetooth mobile,why?Please HELp.. Questioned by mmislam2014, 04-Dec-2014

Please bring the module to our office if you are still facing problem. Answered by A.R, 30-Dec-2014 09:45 AM

Q: CAN IT BE USED USING MOBILE PHONE Questioned by Himel_1, 29-Dec-2014

If your phone is an android phone, then yes. Answered by A.R, 30-Dec-2014 09:43 AM

Q: is it a pair or single ? Questioned by MahfuzulGhuri, 12-Jan-2015

Single. Answered by A.R, 13-Jan-2015 09:26 AM

Q: I got error 507 when trying to connect.Where the problem? Questioned by mmislam2014, 26-Jan-2015

With this little details, we cannot say anything? What are you trying to connect and where is this message being shown? Please mail to with all the details and screenshot. And do not forget to mention your order number. Answered by A.R, 27-Jan-2015 11:01 AM

Q: pl give the back side image... Questioned by SauvikRay, 24-Mar-2015

Q: when it will be available Questioned by Himel_1, 04-May-2015

Q: When wiil be available? Questioned by Akmal101, 07-Jun-2015

Q: The actual hardware and mentioned specification was not the same. According to the spec, there should be a pin named "KEY" but in my case it was "EN". So I could not bring it to AT command mode. After searching the net, I found that there are some different versions of HC-05. Some of them have a push button. In my hardware, there was a space for push button but no push button were soldered there. I therefore shorted the push button terminal during the power up and able to enter into AT command mode. I think it should be mentioned clearly. Questioned by sadikhan, 07-Jun-2015

Q: Need this module very badly. Need this urgent. Please import soon. Thanks. Questioned by Tushar_Abdullah, 08-Jun-2015

Q: What is its "EN" and "STATE" pin for? the supplied datasheet has a breakout board having pins "KEY" and "STATUS" please inform. regards.. Questioned by MotorBreathe, 01-Aug-2015

Q: can i use it as on/off button? Questioned by rumon2071, 15-Aug-2015

You can send command from your android supported bluetooth mobile or laptop to your microcontroller through this. That's it. Answered by A.R, 16-Aug-2015 11:12 AM

Q: কোন দিন আসবে এটা? Questioned by arig12152002, 13-Dec-2015

Q: এটা কবে আসবে? এটার pasword কি? Questioned by arig12152002, 13-Dec-2015

Q: plz..reply Questioned by arig12152002, 13-Dec-2015

ভাই, এখানে কয়েক মিনিটের ব্যবধানে বারবার একটা প্রশ্ন টাইপ করার তো দরকার নাই। আমরা আমাদের সময়মতই লগিন করব এবং উত্তর দেব। সাথে সাথে তো আর দেখব না বা উত্তর দেব না। এটির রেঞ্জ, পাসওয়ার্ড সবকিছু অলরেডি ডকুমেন্টস সেকশনে এর ডাটাশিটে দেওয়া আছে। দয়া করে ওটা নামিয়ে পড়ুন। ঐখানে যা যা লেখা তার বাইরে আমরাও কিছু জানি না। Answered by A.R, 14-Dec-2015 09:34 AM

Q: আপনাদের স্টকে এটা কখন আসবে? Questioned by arig12152002, 14-Dec-2015

অলরেডি চলেই তো এসেছে! Answered by A.R, 14-Dec-2015 12:31 PM

Q: জি,কমেন্ট করার পর খেয়াল করলাম Questioned by arig12152002, 14-Dec-2015

Q: When will it be in stock again? Questioned by fahimyamir, 31-May-2016

This product will be available within next 4 days. You can select "Notify Me W/A" button from the product link. When this product is available, this will automatically send an email and a SMS to your cell phone. Answered by FAHIM_REAZA, 01-Jun-2016 10:55 AM

Q: are VCC,GND,Tx,Rx pins available in this module? Questioned by Abmshuvro, 12-Jun-2016

Yes. Answered by FAHIM_REAZA, 13-Jun-2016 11:48 AM

Q: ata dia ki atmega16 interface hobe???? Questioned by, 28-Jul-2016

Q: ami jodi atmega16 dia switching kori then ta ki kaj korbe???? Questioned by, 28-Jul-2016

Your can use any micro-controller. Answered by FAHIM_REAZA, 28-Jul-2016 17:02 PM

The micro-controller must have RX and TX pins to communicate with the "Bluetooth Module Breakout (HC-05)". Answered by FAHIM_REAZA, 28-Jul-2016 17:04 PM

Q: Bro what's the range? Questioned by omarazraf, 21-Sep-2016

Approximately 10 meters. Answered by A.R, 21-Sep-2016 12:48 PM

Q: Eta te ki power er led ache???? Questioned by ShafinRubaer, 19-Oct-2016

Yes. Answered by A.R, 19-Oct-2016 16:07 PM

Q: I've seen many people using this module without a proper divider. But somehow mine was got bricked. It can paired to any device but not taking the AT command. Any solution? TIA Questioned by Fueanta, 28-Dec-2016

Q: I've seen many people using this module without a proper divider. But somehow mine was got bricked. It can paired to any device but not taking the AT command. Any solution? TIA Questioned by Fueanta, 28-Dec-2016

Do you mean using voltage divider to provide 3.3V to bluetooth Rx pin? Answered by A.R, 29-Dec-2016 18:02 PM

Q: সব কানেকশন ই ঠিকমত দিলাম । কিন্তু আরডুইনোতে পাওয়ার দেয়ার পর ব্লুটুথ এ কোনো লাইট জ্বলে না । তাই ফোন থেকে পেয়ার ও করতে পারতেসি না । Questioned by saifbinhasan1, 05-Jan-2017

এমনি আলাদাভাবে ব্লুটুথের VCC, GND দিলে কি লাইট জ্বলে? Answered by A.R, 07-Jan-2017 00:12 AM

Q: connected the TXD to RX1 and RXD to TX1 of my leonardo. However the micro controller does not respond nor does it communicates with the HC 05. It connects to my phone successfully. Tried 4 to 5 different code but still doesnt work. Questioned by Ishat_Raihan, 14-Feb-2017

Please pair the device to your mobile with proper password and try with another arduino board. If you still think that the module is problematic, please send it back to us with a copy of your invoice. We will check that to give you a proper solution. Please note that warranty is applicable only if you complain within 7 days of purchase. Answered by A.R, 14-Feb-2017 17:40 PM

unfortunately I bought this about a month ago but didnt use it till today. I dont have another ardunio board so cant test it that way. The RX1 and TX1 leds do not flash either when connected to the HC-05. Can you give me any other tips about how can i fix this? Answered by Ishat_Raihan, 14-Feb-2017 17:52 PM

Q: ata ki agami one week ar moddhe pawa jabe ...plz tell me..... ( ) Questioned by mrrazu, 11-Jun-2017

এটা তো এখনই অ্যাভেইলএবল আছে। Answered by A.R, 11-Jun-2017 10:35 AM

Q: ata ki speaker e set kora jabe Questioned by mihadhossain, 21-Aug-2017

প্রশ্ন বোঝা গেল না। Answered by A.R, 21-Aug-2017 16:23 PM

Nah, directly speaker er sathe interface kpra jabe na. Aita microcontoller ba jekono serial device er sathe interface kora jabe. Answered by kaziabraar, 28-Aug-2017 13:54 PM

Q: How to connect a battery to it? Questioned by cyanpile65, 27-Aug-2017

Q: And how do I connect a speaker's + and - to the module? Questioned by cyanpile65, 27-Aug-2017

Why should anyone do that? This one should be connected to arduino/ microcontroller by Tx and Rx pins. And the arduino/micrcontroller should drive the speaker. The VCC and GND pins of this module must be shorted with those of arduino/microcontroller. That's it. Answered by A.R, 27-Aug-2017 12:35 PM

Q: Hello,I need a Bluetooth Module(HC-06).But you have (HC-05). Would you please collect it immidiately????? Questioned by NayemArafat, 25-Sep-2017

Please mail your requirement to Answered by A.R, 25-Sep-2017 09:34 AM

ok...thanks Answered by NayemArafat, 04-Oct-2017 01:25 AM

Q: এই মডিউল দিয়ে কি ওয়ারলেস হেডফোন বানানো যাবে??? Questioned by Shiblo, 17-Nov-2017

No. Answered by A.R, 19-Nov-2017 10:04 AM

Q: Not working Questioned by alemulrazi, 15-Jan-2018

What is your order number? What is the problem that you are facing? Answered by A.R, 15-Jan-2018 10:20 AM

Order number#146081, Couldn't Connect yet. some times i cannot find the bluetooth id as if it has turened on.whats the problem??? In future, if you give us those products which purchased, you must proper QC test then send us. Answered by alemulrazi, 04-Feb-2018 00:55 AM

Hello, Hope you read our warranty policy( before ordering. For any product which is made in China, complain must be given within 3 days of purchase. You can see that the warranty period has been exceeded. Still, please bring the product back to us, if it is within our capacity, we will give you a solution. Answered by A.R, 04-Feb-2018 09:33 AM

Q: I brought a Bluetooth Module from you and it's not responding.. There is no sign that it's working.. :( What should i do now..?? Order Information #146370 Questioned by solaiman.hosen, 31-Jan-2018

Is the problem fixed now? Answered by A.R, 31-Jan-2018 17:07 PM

Q: sry I need 1 piece Questioned by hshipun12, 12-Mar-2018

Please order according to this shopping guideline. Answered by A.R, 13-Mar-2018 09:25 AM

Q: Can I have a link to the converter required to connect this module to a computer? Questioned by Craftsman, 05-Dec-2018 Answered by A.R, 06-Dec-2018 09:45 AM

Q: will this UART-USB work with this module? Questioned by Craftsman, 05-Dec-2018

Q: aita kobe available hobe?? Questioned by naeemturjo, 15-Jan-2019

Hopefully next week. If you have any urgency like project submission, we do not recommend you to wait for our stock. Answered by A.R, 16-Jan-2019 15:10 PM

আমাদের এই মাসের শেষদিকে আসার কথা। আপনার আরও আগে দরকার থাকলে অন্যান্য অনলাইন শপে দেখতে পারেন। Answered by A.R, 21-Apr-2019 10:54 AM

Q: Thanks for sharing this information, you can visit my website to <a href="">Computers & accessories </a> Questioned by Minaakter01, 03-Feb-2020

Q: Do you have the HC-05 which has the AT version 2016 or earlier. I am using the modules which are AT version 2019 which I brought from you earlier. But they have bigger delay than 2016. So, I need specifically 2016 or earlier. Please confirm if you have them in stock soon Questioned by Nahian_Alindo, 17-Jan-2021

আমাদের নিকট VERSION:4.0-20190815 আছে। পূর্বের কোন ভার্শন আমাদের স্টকে নেই। আপনাকে এটিই পাঠানো হয়েছে। পরবর্তী প্রোডাক্ট না আসা অবদি ভার্শনের ব্যপারে কিছুই বলা যাচ্ছে না। Answered by Production, 17-Jan-2021 15:38 PM

Q: can i use it to control bluetooth rc car? Questioned by, 12-Aug-2022

Yes, you can. Answered by almamun3248, 03-Sep-2022 11:09 AM

Q: Can this work with arduino uno r3? Questioned by, 03-Jan-2023

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