Posts made by bluedude

Hi,

I took me a while to get MQTT subscribe working, i'm always surprised how sparse M5's documentation is. This company would do so much better with more samples and better documentation. The hardware and price is great but it lacks a certain degree of details.

Anyway, hereby a working sample with a EMQX MQTT broker which we setup on our own server with elast.io.

We tested the sample and it works. The trick for Subscribe was using MQTT apply for messaging in the Loop. Without that it wont't work.

See the blog

Next problem is getting some code to be able to change WIFI credentials on the fly without needing to burn an image again. What happened to WIFI Smart Config?

blog

@felmue Hi, thanks!

Checked the code and it's not different from mine. My MQTT server works for sure (tested it) but the subscribe event does not kick in.

Need to investigate a few things.

Do you also have a Smart Config WIFI sample maybe? That worked in UIFlow 1 but not in UI Flow 2.

I want to be able to simply switch the WIFI settings when moving to other locations.

I can publish but subscribe does not work. Any samples for UIflow 2?

Also wondering what the MQTT apply messaging does.

I really like M5stack hardware but the UIflow software is so so.

@ajb2k3 In version 1 yes but not in UIflow. Nothing like ESPtouch etc.

Hi,

How can we use Smart config to set the correct WIFI SSID and password on locations of customers?

In UIfow 1 this is possible.

Isn't this implemented in version 2? Would be a shame.

Cheers,

Hi,

I need to power a Noctua fan with 5 (or 12 ) volt.

Does anyone have experience on using the PWM unit for this? I think it is 12 volt or can it be changed to 5 volt output?

My goal is to make a smart fan which can be used in house to increase hot air circulation for better heat spread.