Arduino Bluetooth Basics 

Thank you, man! I was honestly expecting a quick application or something, but this was succinct and perfect for getting started.

Amazing, for an Arduino beginner this is great feeling when everything works :) Already coming up with ideas to create with bluetooth. Thanks for the video it helped!

Really good and basic tutorial ,Mate! :) English isnt my mother tongue, but i had no problems understanding you. Subscribed!

Very plain english and easy to get started. Thank you sir!

As a student trying to figure out how to use the bluetooth modules this was amazing! Thanks for this amazing tutortial, I can now proceed with the goal for this project of mine :).

Nice tutorial for beginners like me. Easy to understand.... Thanks man....

Thanks a lot! smooth tutorial, worked like a charm - you are a lifesaver!

hey I am using HC-06 and it's working perfectly on both 3.3v rx tx level and with 5Vvel, d level don't hesitate trying any of them it's so stable but I am wondering why can't I send data over Serial monitor too while I'm receiving the data which Arduino sends over Bluetooth on the serial monitor ?!!

Sir, thanks for your great tutorial! I love it so much...

Awesome video thank you, questions I'm trying to use a relay switch to a Bluetooth to turn on a light by a vibration sensor to a Bluetooth so I have no wires can you help

Amazing video it's very simple use the bluetooth module thanks for the help.

i want to make a similar project but, i want after detecting the phone using NFC i want my phone to be paired with my computer's bluetooth. is it possible?

You have videos for a lot of things I had been looking throughout the internet for a long time (like key logger, how viruses replicate and this video). Keep it up :)

This tutorial help me alot,thank you so much sir.

Are there any resources for iphones, most of the apps I found to interface with an arduino are for androids only. Thanks!

Thankyou very much, I got my bluetooth module successfully running

Thanks for the video. I had a problem with getting it to work, but I have figured it out. My Bluetooth module is operating at a different baud. (115200). cool stuff. thanks a lot

Thanks, amazing video, very simple :D

Thanks, for tutorial fast and nice.

Is there any initial programming of the Bluetooth module required?

Thanks for your video. It was very helpful for me. :)

Thanks brother. easy and straight to the point.

the bluetooth is using 3.3v logic will the arduino fry it when you connect it to the pin 0 and 1 directly?

This is an odd comment, but your enunciation is excellent.

How come other tutorials are putting voltage regulator for the tx in on the arduino to prevent damage to bluetooth because it states only 3.3v ont he txd pin on the bluetooth module??

awesome video! can u plz tell if u we can connect arduino to a bluetooth speaker using a blutooth model?

Thanks alot for your important information Tx comes with Rx and Rx comes with Tx. I messed up with connecting Rx to Rx and Tx to Tx like I used to connect an Arduino Pro Mini via Arduino Uno to PC.

Hi am new to Arduino and just getting my feet wet. One basic question what is the difference between the HC 05 bluetooth module and the BLE shield that I see on other videos. The other question I have is have you used the HC 05 to control more than one appliance in the same project? any advice and code share will be much appreciated. Great instructional video by the way.

i set it up exactly like yours. but when i touch 13 the light wont turn on or when i send 1 to the module. But when I move the sliders the light comes on and turn off at particular point on the slider. any suggestion would be nice.

congratulations!!!! good works and great tutorial !!!!

for TX and Rx there is a 3.3V level, so according to me we should be using resistors or potential dividers as the uno board output is 5V. am i right???

awesome! but i want to control 6 LEDs. but the code doesnt even work for me. could anyone help?

Thank you very much for this video,its help me a lot

is it ok to install this in my motorcycle for key less.? but my problem, i want my andruino only my phone can connect the bluetooth.. can you give us, or link us the tutorial thank you.

Can you make a tutorial on how to use these Bluetooth modules as a transmitter? To be honest I want to make an audio transmitted so that I can connect bt speakers and headsets to it. The ones available on the market are quite quite expensive so I thought if I can utilise one of these modules it'll be cheaper.

where can i get all the items

Thanks for video. With my at-09 (cc2541) it seems impossible to pair with mi6 android phone. i tried many alternatives such as password, connections (3,3v and 5v ) etc. do you know the solution?

Is there a way to use hardware serial (arduino RX/TX pin 0,1) with Blynk app ?? I know the standard code use the software serial but I don't have anymore pin available on digital.... Can't figure out how to use pin 0/1 with Blynk..... i search on google and can't find a complete working solution Thanks for your support

Hey, i want to write my own gui, but i cant figure out what to write in order to connect via bluetooth, any help?

Is there an app for iOs that can do this?

Thanks a lot!!! I faced some troubles with my HC-10, but you tutorial has helped me :)) Great video!)) Code I've used is below: int LED = 12; int state = 0; int flag = 0; void setup() { Serial.begin(9600); pinMode(LED, OUTPUT); digitalWrite(LED, LOW); } void loop() { if(Serial.available()>0) { state = Serial.read(); flag = 0; } if (state =='0') { digitalWrite(LED, LOW); if (flag == 0) { Serial.write("LED: off"); flag = 1; } } else if (state =='1') { digitalWrite(LED, HIGH); if(flag == 0) { Serial.print("LED: on"); flag = 1; } } }

Hi, I've connected me up to my bluetooth device HC-06 via smartphone. When I try to use it disconect off and applying again so that bright flash its on, and ready to reconnect!? Do you have suggestions on what I should do? I have unfortunately no more Bluetooth devices to test with. Please help me :)

can it work in motor shield if then please help me

Why would anyone give a thumbs down. Absolutely perfect video, step by step and simply presented. Bravo good sir.

so with a second arduino and bluetooth I can control a servo with Pot rather than a phone controller?

hi. i would like to know if it is possible to use push buttons instead of an android phone?

Hi, can I use my bt adapter receiver which we will use for mouse as an arduino bt receiver. Can anybody please let me know. Thanks.

Thank for your video. One question, on my Ardudroid, I can't change the pins, it's stuck on 11, what am I doing wrong?

parabens pelo video muito bom !!

Nice intro! I have a ball launching machine with 4 motors controlled by using arduino uno + adafriut shield V2. Is it possible to remote control the power (12V) so that I have the freedom to turn the machine on/off from a distance? Any help?

Hi I have followed all the directions from your video and have established connection with the bluetooth and my phone. However, the LED will not respond when I send the signals from the Smartphone. The only difference between your case and mine is that I'm using a Arduino Leonardo instead of the Uno.

I want to connect an Arduino Uno to an Android phone via Bluetooth. Between these two modules(HC-05 Bluetooth Module and JY-MCU Bluetooth Module) which one will be better ?

it says that: syntax error at C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf:348 What's the problem?

Whats a good alternate app to use fro iPhone?

doesn't that app has to be compatible with the software u written?? please correct me if i'm wrong

can we use the S2 TERMINAL app instead of arduDroid to control the LED?

How can I transmit the sensed data to android app ?? Is there any videos that you can point to !! Thanks in advance

How do i programme it in android studio?

How do you show the text you are writing in the bottom?

Is it possible to send information from the Arduino to the Android App? I.e. press a Button and the Bluetooth Module sends some information to the paired Android App?

I built the game snake on a Arduino Uno board with a bluefruit LE shield and 16 x 16 light board. I can use my smartphone and the bluefruit app as a controller. It works great! But now I want to make it multiplayer. Can the bluefruit shield which I understand is a peripheral device have multiple discoveries and connections?

What Bluetooth module should I get? Can someone suggest any specific sellers, I would prefer to buy it on amazon but there are so many to choose from, how do I know which one to order? It's hard to figure out the manufacturer because they are all so similar but don't have any markings telling where they came from. Also, what is the difference between slave and master? And why would I need one or the other? Thanks!

Can you comment on the difference between the Bluetooth Module and the Bluetooth shield for arduino ?

hello @tinkernut Labs. I am NOT able to "connect" my "already paired" HC 08 bluetooth module to mobile (android 4.4). I have tried different apps, ArduDroid, Bluetooth SPP Pro, Bluetooth Terminal. But hc 08 still never connects, but only gets paired. On serial monitor, it shows OK+connected, the led on HC 08 is constantly on after pairing and remains until the connection finally fails. Any suggestions, what is wrong?

Awesome explanation :)

can we reserve the comunication press a buton and do something on the android app ?

hi! can i use bluetooth module to communicate between arduino and android smartphone to act as proximity sensor. what i mean is when bluetooth signal less than certain value, android will trigger some action (for example sms) to phone. for this i am using 1sheeld

thanks for your great tutorial!

THANK YOU SO MUCH!

thank you still relevant today :)!

Hi, i have a question and i hope you guys can help me with this. how does the arduino actually know actually know which data it is going to send or receive? in which part of the code does it do that? i want to make two arduinos one having a HC05 as a master sending data over to a HC06 slave on two different laptops. I hope you can answer me.

Can I just buy a usb to bluetooth adapter and plug it into the usb on my 3d printer?

Hi, what Bluetooth profile is used here? is it serial port profile?? can we connect remaining profiles to other devices??

can it work with an ipad mini thats able to connect with a bluetooth

What is a good ios app to do similar functions ?

Is it possible to control two HC-06 with one phone at the same time?

Thank You Helped a lot !

i have made and very very thank you for all code and for showing app

really helpful, thank you

will get the code for Bluetooth module?

when is the next vid coming

hello sir I need to control my robot using hc-05 and aslo simultaneously send my ultrasonic reading is it possible....??

thank you! very helpfull for a schoolproject! :D

from 2 day i am trying to on led by hc-05 ..but nothing happen . But Today i upload code to arduino without connecting any wire of hc -05 and led and.... this work And thanks for this video ...

I am able to pair the bluetooth to android and connect it within the app. But when sending 1 or 0 the LED never lights up. I'm not sure what I could be doing wrong- any help would be appreciated!

HELP plz, I can receive every command from serial monitor on my phone but I can´t send anything, no reaction. I use Arduino Uno and the HC05 bluetooth module (has 2 more extra pins, Key and 3,3V... unused) thanks in advance

does the code works with latest version of arduino?

Will connecting it directly fry the chip

Hey. I thought that HC-06 wasn't 5v tolerant?

Is there an alternative app for iPhone users?

perfect tutorial it work fine :)

where i get that device

How would one send a signal via bluetooth from the arduino

Can you send the link of the other vedio 🙂

Will this work on Arduino nano

it should be Serial.read(); not serial.read();

If i use HM-10 what should i do?

Simple and FUCKING AMAZING!! thanks a lot dude....

Does anyone know how could i transfer sound from phone via BT to arduino ?

Veeeeery helpful thanks. if u can make a tutorial how to make blutu speaker with arduino would be apriciated.