<![CDATA[M5Core detects pressure on key A even if the key was not pressed at all.]]>I discovered by accident that the M5Core sends out a command via MQTT, even if the associated button was not pressed at all. Has anyone ever observed something similar. What can be the reason. It only occurs with key A.

I have written a program to control my marquee in UIFlow. Here is the resulting Micropython code:

def buttonA_wasPressed():
  global temp, prog_name, lfd_nummer, version, data_update, balkon, wohn_zimmer, testraum, message
  m5mqtt.publish(str('whg/balkon/markiese/strg'),str(lfd_nummer))
  lab_status.setText(str(lfd_nummer))
  lab_status.show()
  lfd_nummer = (lfd_nummer if isinstance(lfd_nummer, Number) else 0) + 1
  pass
btnA.wasPressed(buttonA_wasPressed)

Unfortunately, the indentations are swallowed. Is there a way to format code?

Peter

]]>https://community.m5stack.com/topic/3665/m5core-detects-pressure-on-key-a-even-if-the-key-was-not-pressed-at-allRSS for NodeWed, 29 Apr 2026 07:42:08 GMTThu, 21 Oct 2021 13:33:38 GMT60<![CDATA[Reply to M5Core detects pressure on key A even if the key was not pressed at all. on Sun, 24 Oct 2021 21:59:20 GMT]]>@felmue

The tip has hit the problem. I have implemented a query of the key A in the callback routine after 1 ms. Only if the key is still pressed the routine is executed. Otherwise nothing is done. Now there are no more key presses from the ghost.

Thanks

]]>https://community.m5stack.com/post/15231https://community.m5stack.com/post/15231Sun, 24 Oct 2021 21:59:20 GMT<![CDATA[Reply to M5Core detects pressure on key A even if the key was not pressed at all. on Thu, 21 Oct 2021 15:37:27 GMT]]>@felmue
Thank you for the information.

I will have a look at the links. At first glance it might fit.

Peter

]]>https://community.m5stack.com/post/15190https://community.m5stack.com/post/15190Thu, 21 Oct 2021 15:37:27 GMT<![CDATA[Reply to M5Core detects pressure on key A even if the key was not pressed at all. on Thu, 21 Oct 2021 14:12:20 GMT]]>Hello @Peter

could be the issue discussed here. Or this one. Not sure how to fix though.

Yes, you can mark a code block using the back tick three times in a row ``` at the beginning of the line before and after the code block.

def buttonA_wasPressed():

Thanks
Felix

]]>https://community.m5stack.com/post/15188https://community.m5stack.com/post/15188Thu, 21 Oct 2021 14:12:20 GMT