I was torn between posting over on the Arduino forum but decided I would start here, I am having issues with a new project but it's a general question really. If you see the below screenshot, there's a strange topic which is corrupted. As I have the client.publish in my void loop I think this may b…

Thanks @bakman2 and @TotallyInformation :+1: Making changes as suggested by yourselves and it's working as expected so far. I got rid of the "QUIET" message altogether and added a 100ms delay in reading the MAX4466 sound sensor, it's still responsive enough. Now to test it outside! :laughing: I …

Very likely, you are sending an mqtt message every 50ms. If bark detected = send mqtt (QOS 0 without retain), if not, don't send anything. Would be a better solution I would think ?

I also don't know that you really need that last level of topic unless you are going to put something else in there too. Personally, I wouldn't want to put a loop inside a loop, better to call a function from the main loop that tests and resets a ms variable, only trigger the processing if the elap…

I think yes you are correct it’s every 50ms. I could use millis to call a function I guess. With your solution how would the topic get set the string back to “QUIET”. Does QoS 0 without retain get thrown away immediately?

Thank you, yes you’re correct about the topics but I like it to be organised for some reason. Millis timer is also a great idea I will implement. I need to think through the logic of what I need, I think overall I will have it detect every noise over a certain value, then I will have a gate node t…

Thanks, I set it to QoS 0 not retain and am experimenting with the results. I'm noticing an issue in serial monitor which is causing unresponsiveness: Attempting MQTT connection...failed, rc=-2 try again in 5 seconds I think it's due to the number of analogRead's happening in void loop, but I nee…

Just something else which may help. Why every 50ms? I know the sound of a bark is quite short, but..... 50ms? Maybe try 500ms. That will also reduce the load of the arduino. Also I think it would be more flooding the broker rather than spamming it. But that is just a term.

Hi, I’m actually reading every 100ms, it’s the sample window which is 50ms long. So essentially 50ms sampling and 50ms resting. I may be wrong and am happy to be corrected. Source: [image] Adafruit Microphone Amplifier Breakout This guide shows how to assemble the Microphone Amplifier …

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Weird topic in MQTT explorer - am I spamming broker?

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bakman2 7 September 2019 17:37 6

It will not be "replayed", any subscriber (node-red in this case) will get a notification when it's detected.

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Weird topic in MQTT explorer - am I spamming broker?

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