mat100

Waveshare Industrial serial server RS485 to RJ45 Ethernet - https://www.waveshare.com/rs485-to-eth-b.htm

!!! ATTENTION !!!
The converter in MQTT mode supports only 25 transmitted values (read registers).

I'm using this converter in MQTT mode to send predefined registers. This converter works well, but it has one major limit that isn't mentioned anywhere. The supplied VirCom software indeed allows for an unlimited number of registers to be defined, however, the converter in MQTT mode only works with a maximum of 25 transmitted values. If more than 25 are defined, then the converter starts to beep and stops reading data. It took me several hours to uncover this problem. 

mat100

# To enable auto-login, I have the following in the [SeatDefaults] section of /etc/lightdm/lightdm.conf
autologin-user = cnc
autologin-user-timeout = 10

# install vnc server
sudo apt-get install x11vnc

# Setup vnc password
x11vnc -storepasswd

mat100

Send keep alive state every 5 minutes:

  Rule1 ON Time#Minute|5 DO publish tele/%topic%/LWT Online ENDONy
  Rule1 1
  
Analog value changed send sensor telemetric:
  
  Rule2 ON analog#a0div10 DO publish tele/%topic%/SENSOR {"ANALOG":{"A0":%value%0}} ENDON
  Rule2 1

mat100

Source: https://github.com/Wikifab/wikifab-main

Create CT with debian debian-11-standard_11.3-1_amd64.tar.zst

# Log into console and update system
    apt update
    apt dist-upgrade

# Install docker
    apt-get remove docker docker-engine docker.io containerd runc

mat100

https://forums.raspberrypi.com/viewtopic.php?t=305820

sudo nano /usr/local/sbin/eee-disabling-eth0.sh

#!/bin/sh
while true
do
	/sbin/ethtool --set-eee eth0 eee off > /dev/null 2>&1
	sleep 1
done

mat100

prusa-slicer-console.exe --sw-renderer --loglevel=5 

mat100

Source:
https://computers.tutsplus.com/articles/how-to-clone-raspberry-pi-sd-cards-using-the-command-line-in-os-x--mac-59911
https://github.com/lisanet/PiShrink-macOS

BACKUP ON MACOS

1.) Locate SD Card
  diskutil list
  
2.) Cloning SD Card

mat100

Source: https://github.com/arendst/Tasmota/wiki/Esptool

1.) Install python from https://www.python.org/

2.) Download latest Esptool source from https://github.com/espressif/esptool/releases

3.) Install Esptool
  cd Downloads/esptool-x.y
  python setup.py install
  

mat100

source: https://howchoo.com/g/ndy1zte2yjn/how-to-set-up-wifi-on-your-raspberry-pi-without-ethernet

1.) Switch to boot
  cd /Volumes/boot

2.) Create file
  nano wpa_supplicant.conf

3.) Paste this content
  country=CZ # Your 2-digit country code

mat100

Schedule a fsck at the next reboot
  sync
  sudo touch /forcefsck
  sudo reboot
  
or can use shutdown command for this too
  sudo shutdown -rF now
  
 
https://raspberrypi.stackexchange.com/questions/3289/checking-sdcard-for-errors-unmount-problem