Hey guys! You can find the Schematics and the Code here: educ8s.tv/arduino-two-way-bluetooth-communication/

Thanks a lot. I need the same bi directional transmision for an application that I'm building. The video was very useful, it's very clear.

Όπως παντα ακομα ενα αριστο και ευχάριστο βιντεο...Συνεχισε την αριστη δουλεια

Thanks for the explanation - I'm going to use this to isolate a sensitive sensor array from a separate high current control array for a home made accelerated composter

Hey, I love your videos and the information is fantastic. I always look forward to your videos. One comment on the future project for the tank, I would recommend looking into using the ESP8266 and a Access Point (AP) connection for communication -- I think it would be much easier and you will probably get better range. Also, you would get to use a much faster processor of the Wemos D1 Mini.

This method to teach was great.

Yes, thank you for your tutorials. They offer much insight into IoT things. Would be nice to see this using a now available BlueTooth 5 module to get much further reach for sensors outside of 10m distance. Great tutorial thx!

I'm building this, thanks Nick!

Yes, man, I am finding the video substantially useful, thanks!

great video - have you tried faster bit rates than 9600 with the modules? whats the fastest they can do at the 10m range?

Great video and tutorial. I love your enthusiasm!

Thanks for this great useful understandable basic explanation :)

Thank you for a clear and good explanation.

Awesome video as always!

I appreciate your work, what i must change to use hc 12 ?

can you use softserial transferr and use the easytransfer ET in and ET out together to achieve two way communication ?

Good stuff! Subbed

I have a power consumption meter that I would like to read wirelessly. These modules seem perfectly suited for that.

Hi, that was a great tutorial and I think I will be using Bluetooth for my Boat Systems monitor. I was going to use the NRF24L01 but when I realise the maximum data packet size was only 32 bytes I realised it would be too difficult for me to implement. I'm needing to send and receive at least double that amount, but only across 3 metres. Do you think the bt protocol is best?

Thanks for sharing your knowledge. :)

Great tutorial. I am going to build a remote monitor for my beer brewing system.

Very well done, thanks

Hello sir, Thank you so much for your awesome education. i am a newbie for wireless data like this. i don't know how to turning on Relay Module with bluetooth module are connected with ultrasonic sensor with bluetooth too. Sorry for bad english. Thank you.

Thank ypu very much for your work, i will be using it for a bt controller with an arduino car

Awesome job Bro..

Brilliant Nick. Love the videos. Please keep up this excellent work. Lee

Very useful, thanks!

Thanks about your information and project , I have project its need 5 module bluetooth can be use it 5 Module and send data from every Module to Master Arduino to do something can be use it 5 Module ?

Very nice video. is 10 meters the max can be achieved? Can we set the baud rate of the BT modules to lower rate to increase the length?

Before pressing upload remove the wires from the serial port of the Arduino board and connect them again after the sketch has been uploaded. So my question is which wires, all of them or?

Thanks for video.

Dear educ8s.tv your tutorial are amazing. So now I'm tring to make communication two arduino with RS485 and got a trouble. Could you make some lesson with this protocol? Thks in advance

Hello , please do you have Tutorial of 2 arduino nano 33 ble sense , how send the data via BLE ?

Hello, Is it possible to do the same thing with the HC-06 Bluetooth ?

is it possible to control a relay on the server by a set temperature on the client?

can i replace the DHT-22 with BME 280 does is still work the same?

Is this possible that master will send/receive data to/from more than one bluetooth module. if so then how?

Thank you for showing connecting two modules instead of connecting with a 3rd party app. Also, thanks for explaining how to set it up acknowledging easy mistakes.

Why do you want the voltage divider on the RX pin of the arduino? The arduino can receive 5V, can't it? You would want it on the transmit pin because the hc05 needs a 3.3V signal.

thank you

Everyone is using Androids. It's about time we actually find out how to connect our projects together.

hay how to transfer 5 pot values to master...? any idea

May I ask what do I need to chage, if I have lcd display

Very useful. thanks

Hey buddy what if i want to records temperature change periodically, how can i add a memory card over there ?

excuse me, how about using the mlx90614 infrared sensor?

Hello Please help by typing the code using the lcdi2c instead of the TFT

Can I use hc06 instead of hc 05

nicely done. It is something i am working on. Is it possible to connect a led to the master, so it would lit up when a critical temperature is set?

The nrf24l01 modules are less expensive ,their code supports error checking and they are less power hungry. The disadvantage of course is that Bluetooth is everywhere and you can control it with eg. your smartphone or computer whereas the only way you can control the nrf24l01 is with another nrf24l01.

how to find my address of my phone so that the HC05 can automatically connect to my phone...can we find the address of our phone with the BT turned on??

thank youuu

I used a LCD Display and a dht21 its working but the Temperature is changing every 2sec from 16 to 25 °C can someone help me?.. (normally its about 24°C const)..

how can we store the received values of sensor?

how can we do that with HC-06 module?

hey educ8s thanks for the video! just a quick question, a year ago you reviewed two books one being practical electronics for inventors by simon monk. I'm studying electrical engineering and i have a electronics circuits class next year and i want to get a head start. here's a description of the class "Introduction to electrical circuits and basic circuit elements. Circuit theory, analysis techniques, and introduction to design. DC analysis. First-order inductive and capacitive circuits. Operational amplifiers. Mutual inductance. Introduction to computer-aided design and analysis." would that book be worth my time or the Make: electronics books? or what book would you recommend? thanks. oh on a video a while back I suggested using the Microsoft Visual Studio extension called visual micro to program arduino and you said to let you know how it went for me. well i have to say i enjoyed it a lot, it has auto code complete and if you click on one variable you can rename every instance of that variable in the entire code, making things a lot easier, you should give it a try! thanks again

tank u so mush

Hi sir nice tutorial..easy transfer is still working?i ive try to use it but i cant transfer data..can you help me sir..

can we make multiple Arduino's to communicate with each other using Bluetooth

Oled not displaying when Bluetooth connected to Arduino,oled displaying when Bluetooth removed.

this is interesting...but can one bluetooth on an arduino to multiple arduino installed with bluetooth

How to display two different sensors?

Trabajo excepcional

Nice video. At 3:42, your voiceover should say 38,400, not 34,800, but IMO it's pretty minor and most will understand what's needed there.

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Code gives error even after i downloaded library, no problem with library but code shows error like this "Adafruit_SPITFT::::tft8' with constructor not allowed in union } tft8; ///< Parallel interface settings ^ Error compiling. " Please help

if there is multiple Slaves how Master will receive data ???

The other best option (for short and long range) is HC-11/12. This module communicates on UART and super easy to transfer between two MCU's and it can go upto 1 or 1.5 KM (depends on speed).

Very Nice Video @educ8s.tv. I am curious to know whether we can use esp32 as master and arduino with hc-05 as slave like in this tutorial. If anyone have done the same please help me out or if you have any resources do share them in here.. Thank you in advance

I would like to try this with 2 ESP32 (Lolin)

How to transmit digital audio to bluetooth earphone?

Καλησπέρα. Ενα απλό παράδειγμα! Πως μπορούμε να στείλουμε δεδομένα από το arduino σε android συσκευή ;

I followed step by step till 5:40, but when I powered up it always stays in command mode and won't connect :/. The LED doesn't flash as it does in the video. It flashes like it's still in the command mode (on and off for 2 seconds)... Can anyone help me with this?

Can I log the temperature easy from more than one room? Somebody that can send me a link?

2:46 Schematics is wrong! RX to RX and TX to TX ?

Is there something the HC-05 module can do that an ESP-32 cannot do? Because, I believe an ESP-32 board is now cheaper than a Nano and an HC-05.

Hey ,i tried your project but it cannot uploaded to my board , always shows that "error compiling for board Arduino UNO" , other programs work fine but this cannot uploaded ,please help

RX and TX wires need to be cross connected

is there a way to use the H05 as master and use a H06 as a slave ? if so how do you link the two, reason being you cant get an address from the H06.

This does not work at all for me. I followed both the schematics and code but nothing works

if i have 2 HC - 06 Bluetooth, can i do this?

Nick, I think you have a graphical error and wiring error for the BT Master side. The +5v TX signal form UNO must be dropped to +3.3v for the HC-05 RX signal and you are attempting to use a simple voltage divider. While this is correctly shown at 0:05 time in your video for the Slave, it is shown at 0:10 time in your video for the Master incorrectly and both image files are shown incorrectly. If my understanding of what you are attempting to do, please reply. At risk is a lot of blown HC-05 BT modules unless they are somewhat tolerant of the wiring as shown wherein the 1k resistor limits current enough to save the BT module. YES/NO?

hello, excelent vídeo, 1 question, why it's only for interior?, thank's a lot.

do you know where i can find google source code to do one side like in your system? Thanks for any reply!

My modules are connected, my code is works as well but system didn't work

What are the pros or cons of Bluetooth vs nrf24l01 module . The nrf I think reach up to 50meters

The Easy transfer not working

Can we send messages / files using arduino, tft and hc05 modules????? Please reply..

Video starts at 0:45

hi , i got this error! please help Error opening serial port 'COM7'. (Port busy)

Can it be possible to send info from two slaves to one master?

On the LED side of life, you should NOT wire an LED directly to an Arduino output instead using a current limiting resistor. And in the actual sketch, you give up on an external LED and just use the Built-in LED attached to Pin 13. You should have clarified these points.

On Windows10 ??? BluetoothMaster.ino:80:40: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] printText("o", ST7735_WHITE,90,19,2); printText("TEMPERATURE", ST7735_WHITE,30,5,1);

Why didn't you mention what resistors you are using?

You dont upload new video every saturday now ??

Hi Nick, do you have an email I can contact you with?

@3:40 38400

This inspired me to make a bluetooth airsoft gun, I made a video about it. Check it out!:) thanks!