This is a Springboot application to run with MariaDB as Database accessed via JPA, enabled REST access. As package manager Maven is used.
It runs with Java OpenJDK 8 to 11.
Time to setup: (depending on linux experience level) 5 to 20 mins.

v0.1.5 (in progress)

• added react-router to take care of multi pages
• implemented historical inverter data for yearly/monthly usage and averages
• added settings page to view/change general settings

v0.1.4

• added chart to visualize current energy input and output
• using scss to generate style
• improve responsive design especially for small screens
• added logging of charging data

v0.1.3

• added powerchart to visualize total metering data (produced vs consumed)
• visualized status for metering data in energychart (green line/circles on not full data)
• fixed error on bad charger response data
• added bootstrap and responsive layout

v0.1.2

• smart charging including evaluation every rough/5-min data
• added react frontend with basic charger overview and settings
• added d3 energy chart for inverter overview incl. consumption and production data
• additional settings check and setup on startup of app

v0.1.1

• inverter repository and service to access basic inverter data
• charger repository and service to access basic charger data
• scheduler for detail/rough/daily inverter data summaries
• setting repository and service to access basic setting data

pack as jar with: mvn install
and run with (on f.e. a raspberry pie 3) or automatic as a service like described below:

java -jar smartics.jar -Dspring.jpa.database-platform=org.hibernate.dialect.MariaDBDialect

sudo apt-get update

use a current java version f.e., or because of non compliant to ARMv7+ VFP use jre 8 for a raspberry 1:
be patient with a pi 1 though (test took 390 seconds to start SmarticsApplication – versus 56 secs on a pi 3)!

sudo apt-get install openjdk-11-jre
sudo apt-get install openjdk-8-jre

sudo apt-get install mariadb-server mariadb-client

sudo mariadb
create user smartics identified by ‘smartics’;
create database smartics;

additionally grant access by user and locally:
the same can be added by replacing ‘localhost’ with the ip of the remote system of choice for remote db access.

GRANT USAGE ON . TO ‘smartics’@localhost IDENTIFIED BY ‘smartics’;
GRANT ALL privileges ON smartics.* TO ‘smartics’@localhost;
FLUSH PRIVILEGES;
quit

sudo service mariadb restart

sudo mariadb -u smartics -p

sudo nano /etc/rsyslog.d/smartics.conf

if $programname == ‘smartics’ then /var/log/smartics-0.1.log
if $programname == ‘smartics’ and $msg contains ‘ERROR’ then /var/log/smartics-0.1-error.log
if $programname == ‘smartics’ then stop

sudo systemctl restart rsyslog

sudo nano /lib/systemd/system/smartics.service

smartics.service:

[Unit]
Description=Smartics
After=multi-user.target

[Service]
Type=idle
WorkingDirectory=/opt/smartics
ExecStart=/usr/bin/java -jar smartics.jar
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=smartics

[Install]
WantedBy=multi-user.target

sudo chmod 644 /lib/systemd/system/smartics.service
sudo systemctl daemon-reload
sudo systemctl enable smartics.service
sudo systemctl start smartics.service

download f.e. raspbian buster lite from: https://www.raspberrypi.org/downloads/raspbian/
use f.e. etcher to install on sd card: https://etcher.download/

change standard password or create new user/group

sudo passwd pi

connect to raspberry pi from win: (use f.e. putty.exe after enabling ssh on the pi)
check your ip address:

ifconfig

set correct time/zone (should be similar to the one on the other devices) f.e.:

sudo raspi-config

enable ssh on pi

cd /boot
sudo touch ssh
sudo shutdown -r now

connect to mariadb remotely (skip-binding in my.cnf; grant user-access):

sudo nano /etc/mysql/my.cnf

[mysqld]
skip-networking=0
skip-bind-address

sudo service mariadb restart

install pscp.exe for accessing and copying files: (use location of jar and tmp folder on pi)

./pscp.exe d:/development/workspace2019/smartics/target/smartics-0.1.5-SNAPSHOT.jar pi@192.168.1.162:/tmp/smartics-0.1.5.jar

copy file from temp folder:

sudo mkdir /opt/smartics
sudo mv /tmp/smartics-0.1.5.jar /opt/smartics/

restart service after update:

sudo systemctl restart smartics.service

inspect output of smartics/log:

tail /var/log/smartics-0.1.log -f

• charger: error on status-set leads to error in ChargerRepositoryImpl leading to killing of scheduler!!
• inverterarchiverecalc produces daily summary, leading to 416/missing data if done for today (won’t override at end of day)
• inverterarchiverecalc produces rough/min entry for current time that won’t be overridden in next run (rough already ran)
  ~ energyChart: consumption can be more: 7,000 Wh – paint extrem values extra?

• energyChart: production values over night are 0 – skip rect for those values! (do not add to array)

• archive data: correct 1st entry min of day not gotten and visualization in consumed-graph/path

• fix liquibase (add correctly to project, generate diff)
• handle inverter errors

• add archived data from inverter

• cleanup springboot (remove unnecessary dependencies)
• move node_modules out of src (for easier handling, backup)

• general graphical view (produced/consumed/feedback data)

• graphical view of produced=consumed/feedback, consumed=from grid/produced
  ~ responsive design (to use on mobile and screen)
• enable analysis of consumed power (add logic to calculate spikes,..)

• add go-e charger access (set ampere according to +energy available)

• add go-e charger funktionality of setting end ampere
• add historical charging data (+repo, graph?)
• add configuration (for inverter ip, cost of kw hour,..)
• add time difference calculation

• raspberry pi 3 reboot time (from last entry to next entry in mariadb): ~90s
• raspberry pi 3 smartics startup time (including db initialization): ~60s
• entries every 5 seconds: 17.280 a day, 6.307.200 a year, ~450mb
• entries every 5 minutes: 288 a day, 105.120 a year, ~10mb