For those whose bluetooth module HC05 is not blinking its own LED as shown in the video, connect EN to 3.3V and VCC to 5V, then you can carry out the AT commands. Also, remember to put question mark (?) after each AT commands such as (AT+UART?) instead of (AT+UART). Also, when putting new names and password, no need to use inverted commas , for example, you can simply use (AT+PSWD= 6754) instead of (AT+PSWD= "6754"), you can also cross check with the original password of Bluetooth module to compare the new password format with the exact format of original password for simplicity.
If it’s still not working, you can remove the RX and TX cables, upload an empty sketch, then re plug the RX and TX cables and then perform above instructions. Arduino board should have an empty sketch uploaded
Firstly type AT and press enter. See if the reply come "ok" then type the following command mentioned in the video. Otherwise reconnect the arduino with your computer.
![Arduino HC-05: Bluetooth Module Configurator w/UNO R3 & Basic AT Commands [Tutorial]](http://i.ytimg.com/vi/ykgt4v7_4y4/mqdefault.jpg)
![Arduino HC-05: Bluetooth Module Configurator w/UNO R3 & Basic AT Commands [Tutorial]](/img/tr.png)
For those whose bluetooth module HC05 is not blinking its own LED as shown in the video, connect EN to 3.3V and VCC to 5V, then you can carry out the AT commands.
Also, remember to put question mark (?) after each AT commands such as (AT+UART?) instead of (AT+UART).
Also, when putting new names and password, no need to use inverted commas , for example, you can simply use (AT+PSWD= 6754) instead of (AT+PSWD= "6754"), you can also cross check with the original password of Bluetooth module to compare the new password format with the exact format of original password for simplicity.
Thanks 👍🏻
Great demonstration i understand very clearly how to config mine now thanks alot
Day by day your vedio quality is going up.👍👍👍
Thank you so much 😀
If it’s still not working, you can remove the RX and TX cables, upload an empty sketch, then re plug the RX and TX cables and then perform above instructions. Arduino board should have an empty sketch uploaded
High quality content
Thank you and stay connected.
@@MyTechStudioOfficial Ping my main comment that may help a lot of people
Very Useful Video
No need to drop the voltage going to the rx pin?
There is no need to drop the voltage
Boadrate 1200.N.8.1
Per chalegi
I try but after reset the baudrate change to default value.
If my passward is for six numbers, how to change the pin to be 4 numbers?
useful
I want an app which the sends Mobile notification as a command to hc-05 bluetooth module .please help me anyone
When i type AT nothing comes up?
It means the bluetooth module is not bind up.
Reconnect the bluetooth module again, it will work.
I also have same problem
@@dragongm5709 DID YOU FIX IT ALSO HAVING THE SAME PROBLEM
@@kolorszx4112 Yes, my problem is a connection problem, recheck the cable and connect the enable pin to 5V
same problem pls help
if i dont want password ?
Then you don't need to change the password
Keep it is as default
Hello sir,
If I type AT+NAME,
Its showing *ERROR:[0]
*
Pls give the correct command
Firstly type AT and press enter.
See if the reply come "ok" then type the following command mentioned in the video.
Otherwise reconnect the arduino with your computer.
@@MyTechStudioOfficial When i type AT , It showing ok. But when i type another thing like ' AT+NAME' , 'AT+PSWD' , It showing nothing
@@rahuljana1176 same here
@@rahuljana1176 Add a ? at the end of the command
Same problem. Give me the solution