Thank you felmue.
I didn't realize, that I need to update the M5Burner. Works like a charm now, thanks again.
I flashed UIFlow 188.8.131.52 with M5 Burner on my new M5StickC Plus. Sice then only the lower left of the screen displays something useful, most of the screen is covered with black an white lines.
Also colors are skewed, e.g. I set the screen to blue, then only the small working rectangle shows up in red. If I set the screen to red, it lights up yellow and so on.
I remember the screen working fine the first time I turned the device on. There where some preinstalled apps on it. Is there any way of a factory reset or could you tell me why the screen behaves that way?
I read some parts of this thread yesterday. ; ) I couldn't figure out whether the retain flag is set or not. But I tried it as well in the services tab where I set "retain: false" and it sadly didn't change a thing.
I thought that I probably have another problem, as most people in that thread only had problems with subscribing to multiple topics, no?
Yes, to test it I sent the payload via the publish feature inside HA. Of course, the goal would be, that the payload is sent by the esp32 in my mailbox (DFrobot Firebeetle). This is working fine, as I have other automations inside HA that react to the "arrived" payload.
I'm new to m5stacks and uiFlow and hope someone could help me.
I want my m5stack to subscribe to the MQTT Topic of my smart mailbox and react somehow when a letter was delivered. I use Mosquitto as my broker which is an addon to Home Assistant.
As a quick test I did the following in uiFlow. I want the RGB turn green when the payload "arrived" is picked up in the topic "mailbox/action".
The publish part works fine, I can pick up the readings of the ENV Unit inside Home Assistant. What doesn't work is the subscribe part, i can't pick up anything with my m5stack. If i subscribe to to the topic inside Home Assistant to check it, it works.
Thanks for letting me know if there is some error in the code or you know what else could be wrong.