update firmware

rpi-update
apt-get full-upgrade

enable w1-wire

/boot/config.txt
dtoverlay=w1-gpio

or

raspi-config
enable w1-wire interface

or
modprobe w1-gpio

GPIO tools

gpio readall

default data pin = 4(header=7)

dtoverlay=w1-gpio,gpiopin=4  
dtoverlay=w1-gpio,gpiopin=17
dtoverlay=w1-gpio,gpiopin=27
dtoverlay=w1-gpio,gpiopin=22

or
dtoverlay w1-gpio gpiopin=4 pullup=0 

log

dmesg

Other software

cheese

crosftp/gftp

onedrive/rclonebrowser/rsync

iftop
top -o %MEM

nmap -sS 192.168.1.0/24

watch

rfkill block wifi

partitionmanager

fdupes -d ./2022-02-21/

crossftp

apt update & install default-jre

http://serialkeys123.blogspot.com/2014/11/crossftp-professional-1924-serial.html

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