I'm trying this for the first time and not having much luck. I have Mosquitto installed in a Docker container running under Ubuntu. On my laptop I can run MQTT.fx and successfully publish and subscribe. I also have Home Assistant connected, and it can respond to the messages published from MQTT.fx too.

I have the following code running on a mcModule110:

Class TestHeartbeat
    Shared Event SendMessage() RaiseEvent Every 15 Seconds
        Dim payload As ListOfByte = New ListOfByte()
        payload.Add("testing")
        Lplan.Publish("heartbeat", payload)
        LedGreen = Not LedGreen
    End Event
End Class

And I have the mcGate110 config set to my Mosquitto server (192.168.0.39:1883). The green LED goes on and off every 15 seconds, but no messages arrive at either MQTT.fx or Home Assistant. And MQTT.fx can scan for topics, but nothing shows up. Any help would be much appreciated.

Hi Junkboy,

Sorry for the delay.

1) How quickly are you expecting to transmit the acclerometer data? If you are trying to transmit any less than every 30 seconds, you will likely start to run into issues as the system is designed for low-power. It is not designed for continuous transmission of data due to the low-power and design of the platform. We do have many users who are using the accelerometer and either sending a sample every 30 seconds (or at a longer interval) or programming logic onto the device where you can do some computing to send out a particular value on an acceptable interval.

For your uses, you'll need to work on you code and programming to get what you need - since there are not a lot of available examples on using the accelerometer yet, you'll need to put in the time and effort on your own code at this time. as mentioned, in the new system there is some more accelerometer examples that might help you out but that wont be accessible until the new system is available to everyone (in the next month or two). There are users here on the forum that have done some fancy things with the accelerometer and might be able to provide you code and help. I do not have permission from our users and clients to share those examples at this time.

My recommendation would be to look at the library for the accelerometer within mcStudio to understand it a fully and you can also search around online for others using the same sensor of other hardware - you can then take those examples and work on moving them into the mcStudio environment for your own use.

Hope that helps!

I am trying to do my best to understand how the code that you send me as an example works, but is there a way to always be sending the current orientation of the device? I want to know at all times or as soon as possible the location, let me put you in context, for example, at the start I have: X = 0 Y = 0 Z = 0 in that case the device would be on the floor with all axes at "0" but let's say I start walking with the device at my leg, in that case let's say that we would have X = 12 Y = 8 Z = 15 that data I want to be taking for example every second or every 500 ms to keep a continuous tracking of the information, right now idk how to send that info by MQTT but.. I use an example that I found at internet that send the temp and batteryVoltaje to Losant and I'm using Losant until I learn how to send that data to my own server.

Hey Junkboy

Ok good that you have mcMod120's - Check out this post that talks about using the accelerometer on the mcMod120 (including an initial downloadable library): http://mcthings.createaforum.com/support/module-120-accelerometer-communications/msg1187/#msg1187

You can also check out this github example: https://github.com/mcThings/mcScript-examples/tree/develop/examples/Accelerometer

As mentioned, when mcCloud is released, there is a new accelerometer example that will be included in the latest version of mcStudio as well. Thanks for the patience and hopefully the above info helps you to get going.

I have the mcMod120 please help me  .