hi e,
I also use this method of disconnecting rx and tx pins before uploading and it works for me. As for the AT command mode, i've tried many different methods including changing the pins and changing the baud rates etc with no success. I feel like the most likely solution is to buy an Uno and set the modules like you have done. Is it possible to set the modules with the Uno but then plug them back into the circuit with the nano, will it still work the same as slave and master?
Thanks

Also, is there a site that you'd recommend for buying an Uno? Preferably i want avoid the official site as i don't have a lot of money or time, but obviously i want it to function correctly.
Thanks

 

Just google it... depends on how fast you want, price and some options like do you want a DIP or SMD chip...etc

 

Did you remember to change the code when you changed the pins?

 

Just google it... depends on how fast you want, price and some options like do you want a DIP or SMD chip...etc

okay will do, i'll probably just go for a basic model as i don't want any particular features.
Thanks

 

Did you remember to change the code when you changed the pins?

hi wolf,
yes i did, i used your code as well but it was the same result. Just to be sure, which pins are you referring to when you say 2 and 3? Are those D2 and D3, or A2 and A3, or something else?
Thanks

 

D2, D3

 

D2, D3

that's what i was thinking but it didn't work
Thanks

 

hi S,
Do you have regular USB to UART converter and cable.? the type with one end having 4 wires.??

E

Update:
https://classbproject.com/configuring-hc-05-bluetooth-module/

 

hi S,
Do you have regular USB to UART converter and cable.? the type with one end having 4 wires.??

E

Update:
https://classbproject.com/configuring-hc-05-bluetooth-module/

hi E,
I don't, no. Do you think that is as likely to work as an Uno? If so i can buy one of those for cheaper so that would be convinient.
Thanks

 

can you get your nano to work with serial com without the BTunit?

 

can you get your nano to work with serial com without the BTunit?

yes, i've used serial com a number of times even with the HC05 but just transmitting to a phone via bluetooth.

 

What version of BT is the HC05?

 

What version of BT is the HC05?

hi Wolf,
I don't know about the version sorry. However i did manage to solve the problem. I bought a new Uno and it worked perfectly; I did also have to follow your advice and change the serial pins being used to 2 and 3 but now it all seems to have worked. Thanks for all you help you and everyone.
Thanks

 

hi Shawn,
Now that you have a Uno, it is possible to use it to program the 'suspect' Nano with an up to date bootloader.
Using the Arduino IDE.
E

 

Glad you got it working, the HC05 is BT version 2.0... we are currently in BT5. The reason why I asked is that you mentioned working with your phone. This may be a challenge... some phones will revert to older Classic versions, others do not. My iphone will not work with the HC05.