micropython
SHELL:
https://github.com/dhylands/rshell
rshell --buffer-size=30 -p /dev/ttyUSB0
mkdir /pyboard/umqtt
cp simple.py /pyboard/umqtt/
cp dht_publish.py /pyboard
repl
import main
Wlan:
http://docs.micropython.org/en/latest/esp8266/esp8266/quickref.html
mqtt:
https://raw.githubusercontent.com/micropython/micropython-lib/master/umqtt.simple/umqtt/simple.py
Temp, humidity:
https://www.youtube.com/watch?v=_vcQTyLU1WY
https://www.rototron.info/raspberry-pi-esp32-micropython-mqtt-dht22-tutorial/
Display:
SSD1306 I2C display. pin 5 is SDA, pin 4 is SCL.
####display lib
https://github.com/adafruit/micropython-adafruit-ssd1306
####usage
http://docs.micropython.org/en/latest/esp8266/library/machine.I2C.html#machine-i2c
####howto http://www.instructables.com/id/MicroPython-on-an-ESP32-Board-With-Integrated-SSD1/
#Dependencies:
echo "deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main" > sudo /etc/apt/sources.list.d/pgdg.list
wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install -y python-pip libffi-dev libssl-dev postgresql libpq-dev mc && sudo -H pip install crossbar psycopg2
add service:
cd /etc/systemd/system/
which crossbar
mcedit cbs.service
mcedit forwarder.service
[Unit]
Description=Crossbar.io
After=network.target
[Service]
Type=simple
User=pi
Group=pi
StandardInput=null
StandardOutput=journal
StandardError=journal
Environment="MYVAR1=foobar"
ExecStart=/opt/crossbar/bin/crossbar start --cbdir=/home/ubuntu/mynode1/.crossbar
Restart=on-abort
[Install]
WantedBy=multi-user.target
[Unit]
Description=MQTT forward to Crossbar
After=network.target
[Service]
Type=simple
User=pi
Group=pi
StandardInput=null
StandardOutput=journal
StandardError=journal
ExecStart=/usr/bin/python /home/pi/MQTT_forwarder/main.py
Restart=on-abort
[Install]
WantedBy=multi-user.target
sudo systemctl daemon-reload
sudo systemctl enable cbs.service
sudo systemctl start cbs
sudo systemctl enable forwarder.service
sudo systemctl start forwarder
sudo journalctl -f -u cbs
sudo journalctl -f -u forwarder
##DATABASE:
sudo passwd postgres
sudo -i -u postgres
psql
ALTER USER postgres WITH PASSWORD 'supertemp';
createdb -O postgres CBS_DB
psql "CBS_DB" < database.backup
sudo mcedit /etc/postgresql/9.6/main/postgresql.conf
( change to : listen_addresses = '*')
sudo mcedit /etc/postgresql/9.6/main/pg_hba.conf
( In this file you have set, from which computers you can connect to this server and what method of authentication you can use. Usually you will need similar line)
"host all all 192.168.1.0/24 md5"
sudo service postgresql restart
test push from dev comp