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  Hello @foofera

  hmm, the I2C communication working in setup() suggest the wiring is ok.

  Are you using pull-up resistors on intSCL and intSDA?

  Have you tried lowering the I2C bus speed?

  Have you tried to put a delay between issuing I2C commands in your loop() code?

  Have you tried to control a different I2C slave device from your STM32? Does that work in both setup() and loop()?

  Thanks
  Felix

• FAQS

  When you meet problems using M5Stack, we help you solve it.

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  just load fresh firmware via M5Burner or easyloader demo version to check it out, I have Core basic which LCD stopped working few years ago after loading new project bizarre... but controller itself still works just I cant use screen

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  @djairguilherme said in New ESPHome Support for M5StamPLC:

  Thanks ChirpyChips aka @Beormund.

  I used your implementation with ESPHome to interface with a Schneider Phase Inverter. I wrote a tutorial on Hackster.io.
  https://www.hackster.io/nicolaudosbrinquedos/m5stack-stamp-plc-as-real-plc-3ec3ed
  Thank you very much for your work!

  @djairguilherme Nice! At some point I really do need to utilise ESPHome's RS-485 support to expose the M5StamPLC's PWR-485 interface as a Modbus slave. It's on my TODO list.

• Cores

  Core2 for AWS M5Stack Fire M5stack Grey M5 Stick/StickC M5GO FACES Kit M5Stick V Core 2
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  @TSSP_Projects
  Thank you very much! Exactly that problem!

  Top man and once again thank you!

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  F

  Hello @xgonc

  no, I did not try any other Ethernet library.

  Thanks
  Felix

• Atom

  For topics on the M5Stack Atom.

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  The error means I2S port 0 driver wasn’t installed before uninstall was called. Make sure you call i2s_driver_install() successfully before attempting i2s_driver_uninstall(). Also, check that your code isn’t trying to uninstall the driver twice or uninstall before install. Reviewing the initialization sequence and adding error checks after install calls should help fix this issue. If you’re using legacy I2S, consider updating to the latest driver APIs for better stability.