illegal instruction in ATC mode

[lsroka76]

Hi,

i've installed everything according to instructions on my Pi Zero W but script crashes with "illegal instruction" when used with --atc.
There are no issues without --atc switch. I tried everything including reinstallation of Pi system from scratch.

[JsBergbau]

Hi Isroka76,

thanks for your report. Based on your post this sounds so far either as bug in some python version or maybe even a hardware problem with your Pi Zero W.
Please post detailed steps of how you installed your Pi and MiTemperature2 script as well es the complete commandline running MiTemperature2 script.

[lsroka76]

I did several attempts, each time starting from scratch (SD format, fresh OS image - Raspberry Pi OS Lite (32-bit), 10.2021 using Raspberry Pi Imager). I tried with "sudo apt-get dist-upgrade" and without it...I even tried to built Bluez from sources.

Nothing helps - script works perfectly with 5 sensors, but with --atc it ends with "illegal instruction" - with and without sudo.

Regarding MiTemperature2 script I did git clone of your folder.

[JsBergbau]

Since there are some requirements to be installed before script can run, please also post all the steps after you have setup the Raspberry PI OS.

[lsroka76]

sudo apt-get update

sudo apt-get dist-upgrade

sudo rpi-update

sudo apt-get autoclean

sudo reboot

sudo apt-get install -y mc git libssl-dev bc python3-pip supervisor

pip3 install bluepy requests

sudo apt install bluetooth libbluetooth-dev

pip3 install pybluez

sudo setcap cap_net_raw,cap_net_admin+eip $(eval readlink -f which python3)

[JsBergbau]

It seems to be a problem with pycryptodomex library.

Please uninstall current version with
pip3 uninstall pycryptodomex
and then install older version
pip3 install pycryptodomex==3.11

Then it will work.

[lsroka76]

It works! Thank you :-)

[JsBergbau]

Old version is not needed any longer. pip3 install pycryptodomex works again.