The windows control station is an embedded system with multiple sensors to climatize different locations according there temerature and humidity.

hardware setup

SBC:
====
i2c-1:
------
am2315

i2c-3:
------
am2315

gpios:
======
Fensteransteuerungen(0/offen, 1/zu):
---------------------
gpio5	Gefrierraum
gpio6	Kellerbüro
gpio13	Heizoelkeller
gpio19	Kartoffelkeller

set up OS

install rasbian
set root passwd and enable ssh and set root access

set hostname

echo wcs > /etc/hostname

rm user

deluser pi --remove-home

fix language

export LANGUAGE=en_US.UTF-8 export LANG=en_US.UTF-8 export LC_ALL=en_US.UTF-8 locale-gen en_US.UTF-8 dpkg-reconfigure locales

clean system (apt)

apt purge avahi-daemon bluez bluez-firmware crda ca-certificates cifs-utils ed firmware-atheros firmware-brcm80211 firmware-libertas firmware-misc-nonfree firmware-realtek freetype2-doc g++ gdb htop iw javascript-common nfs-common ntfs-3g pciutils pi-bluetooth rpi-eeprom rpi-eeprom-images rfkill sudo wireless-regdb wireless-tools wpasupplicant zlib1g-dev

apt autoremove apt autoclean apt clean

apt update apt dist-upgrade apt clean

clean system (rm)

rmdir /home /srv /media

install (apt)

apt install git i2c-tools libi2c-dev python-dev

config DT

source: https://www.instructables.com/id/Raspberry-PI-Multiple-I2c-Devices/

nano /boot/config.txt ...

Additional overlays and parameters are documented /boot/overlays/README

dtoverlay=i2c-gpio,bus=3,i2c_gpio_delay_us=2,i2c_gpio_sda=22,i2c_gpio_scl=27

Enable audio (loads snd_bcm2835)

#dtparam=audio=on

disable_splash=1 # no rainbow on boot gpu_mem=16 ...

set up software

git clone

mkdir git cd git/ git clone https://github.com/lexruee/am2315.git git clone https://github.com/brenkem/wincon.git

brenkem/wincon