//RoboIndia Code for HC-05 with AT Mode //https://www.roboindia.com/tutorials #include <SoftwareSerial.h> SoftwareSerial BTSerial(5, 6); // RX | TX void setup() { Serial.begin(9600); Serial.println("Enter AT commands:"); BTSerial.begin(38400); // HC-05 default speed in AT command more…

[image] bhayss: I have triple checked the wiring The same eyes and mind, each time. Please follow the forum protocols and post diagrams and images here.

Ok, I want to follow protocol and be a good neighbor. What type of image or such would be appropriate?

It's actually more aligned with common sense than protocol. What would you need to see, if someone asked you the same question? [image] How to get the best out of this forum IDE 1.x See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, W…

Let's step back a moment and do a thought experiment. Let's assume I have the same wiring on both boards. Let's assume I have the same sketch, see above sketch. Let's assume I can get the Uno/HC-05 combo to work with an Android app whereby text from my Android is displayed in the serial monitor. Le…

Not from a software perspective. But such thought experiments are not usually productive. What is productive, is active troubleshooting using divide and conquer methodology. The Uno and Nano differ almost not at all, considering the code above. They use almost the same processor (identical except f…

[image] bhayss: I can get the Uno/HC-05 combo to work with an Android app whereby text from my Android is displayed in the serial monitor. OK. That says what you need to say about code and connections. What you now need to tell us is if you are getting the slow LED flash confirming you are ac…

Yes I am getting slow Hc-05 blink. I don't know what info is meaningless and what info is critical. See my next reply.

I was hoping the answer was not "no" and that there was something different between the two that would help me troubleshoot. [Two serial monitors.png] [20221215_175536[1].jpg]

Well, they are wired differently. Right? Again, it is actions, not ideas, that will help you solve this. Are you not running the same sketch on both boards, for testing? You should. Otherwise it is not a real A/B test.

They are wired the same, and running the same sketch. Should I send more close-up photos? Should I make a fritzing of each (same mind, same eyes, problem!). [20221215_181611[1].jpg]

Uno HC-05 Software Serial No response to AT command

Projects Networking, Protocols, and Devices

groundFungus December 16, 2022, 12:26am 13

If you want to get the HC05s into AT mode so that you can make changes to their setup, this tutorial (of mine) has helped others. >> Setting HC05 (ZS-040) to AT mode

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Uno HC-05 Software Serial No response to AT command

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