RPi3 temperature and humidity sensor.

For explanation and documentation of the project, see https://heikokromer.com/index.php/2020/01/05/dashboard-paulisasnake/

https://tutorials-raspberrypi.de/raspberry-pi-3-wlan-einrichten-bluetooth/

https://github.com/abrauchli/python-smartgadget

• Install the packages with sudo apt-get install mongodb

• Create directory /data/db, be sure to check permissions correctly with sudo chrown -R mongodb /data/db/

• Start mongodb service using sudo systemctl start mongodb.service

• Check that it is also running with a restart of the system

• Install python packages python3 -m pip install pymongo==3.4.0 pandas numpy

• the data from the test sensor is stored in the database sensirion_test, collection is temp_and_humid.
• to check, connect to the RPi3 and run mongo. Then run use sensirion_test and find everything in the collection using db.temp_and_humid.find().sort({$natural:-1}).
• execute read_sensirion_and_insert_to_mongo.py every minute in crontab adding * * * * * python3 /home/pi/paulisasnake/Sensirion_smart_meter/read_sensirion_and_insert_to_mongo.py to crontab -e

• NodeMCU Lua Lolin V3 Module ESP8266 ESP-12E
• DHT22 sensor
• jumper cables
• power supply
• breadboard(s)

https://github.com/binnes/esp8266Workshop