entropy-miner

open-source hardware random number generator

video

create user

adduser user
apt update
apt install ssh

enable ssh RPi

sudo raspi-config
3 Interface Options
11 SSH
<Yes>
<Ok>
<Finish>

java

sudo apt update
sudo apt install openjdk-17-jdk

gpio group

sudo groupadd gpio
sudo usermod -aG gpio $USER
sudo vi /etc/udev/rules.d/99-com.rules
SUBSYSTEM=="gpio", GROUP="gpio", MODE="0660"

remove symlink

ls -l /dev/gpiochip*
sudo rm /dev/gpiochip4

adjust the volume

alsamixer

autostart

/etc/rc.local

#!/bin/sh -e

gpioset 0 14=0
gpioset 0 15=0
cd /home/user
/usr/bin/java -jar entropy-miner-1.0-jar-with-dependencies.jar

sudo chmod a+x /etc/rc.local