You can use hc-12 with standard UART communication and "AT" commands in the datasheet.

Steve-Matrix wrote: ↑

Sun Aug 31, 2025 10:52 am

We will have an official announcement in the next few weeks. If all goes well, we hope to release before the end of Sept.

Is there a date for when FC11 will be released?

Actually you don't need to do this. The standard mqtt example given in the flowcode examples can already connect to port 1883 and send data without a username and password. The problem is that I cannot connect to mqtt broker with flowcode by entering username and password using port 8883.

NOTE ...

The subject caught my attention. I also worked with flowcode to send data to mqtt brokers such as hivemq and emqx. I managed to send data to public servers using port 1883. However, no matter what I did, I could not connect to the encrypted broker using port 8883 with flowcode. You wrote on the ...

On the esp32 - there is a MQTT library. It would be fairly easy to use that - and it supports extra features such as certification, Last Will and Testament messages etc...

Martin


Is this library you mentioned available in flowcode?

NOTE: I found an interesting solution. I printed the code I ...

Is there a date for when the espow protocol will be added to flowcode?

Hello again. It's me again :)
I was able to connect to public (free) hivemq and emqx mqtt brokers with flowcode and I can send data (For example broker.emqx.io port:1883). But I can't connect as private mqtt, password etc. everything is correct (For example my broker address is y131ffc0.ala.eu ...

So this is my version for ThingSpeak - it would take some work to change to ThingBoard - and I haven't looked yet...

I've used NetworkComms to do all the work - to give a different perspective from Iain's version.

It writes three data fields to a test ThingSpeak account (.count, count * 2 ...

Posting should work using the above - 1234567 needs to be replaced by your channel ID number.

I think 'pot' and the like only work using a RPi as MQTT Server...

I couldn't work out how to read a channel using 'subscribe' - hence my example above.

I'll try and post an example this evening ...

It would be good for all flowcode users if the Flowcode team created and released a working example for an mqtt broker

They have, and there are examples of people using the component in the forums such as

https://www.flowcode.co.uk/forums/viewtopic.php?f=3&t=999&p=5495#p5495

In this example ...