Hi. I'm having a problem pairing two HC-05 modules together.
I am using two HC-05 modules, in a master-to-slave configuration. One HC-05 is connected to a Nano and the other to an Uno.
It is not a problem with the bluetooth modules themselves as I tried switching the modules up and they still work fine.
The module connected to the Uno (master) works fine, but the module connected to the Nano (slave) dosen't even recieve AT commands. It either shows nothing or it dosen't send at all.
Please help me!
Please post the sketches running on each board, using code tags when you do
How did you determine both modules "work"? My guess is that you tried both HC05 on the Uno.
This tells me connections to your Nano AND the Nano sketch is incorrect.
Post Drawings of both connections, sketches used on both boards and Serial Monitor output from both boards.
I will post the connections shortly.
I uploaded a blank sketch to both Arduino's.
As for Serial Monitor output, I recieved none on the Nano, but AT commands worked fine on the Uno.
Thanks!
"none?"
As in I tried to send AT commands but neither did they show up on the Serial Moniter, nor did I get a response from the HC05. So, yes, "none".
I uploaded blank sketches.
Test each board individually with this sketch. What are the results?
I tested each board individually. Found out that AT commands work fine with UNO. It gives proper responses to my commands but there is no serial monitor output on the Nano. When I try AT commands on the Nano, it doesn't even show an error, just nothing at all. Not even the commands I send show up.
Please help.
Not true.
See Post #2
What sort of Nano? There are several.
Post the code, using code tags, a list of connections, and a photo of the setup.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.