karo-gabi

Arduino-Raspberry Pi networking project

Karo (Raspberry Pi 3 B+)

• WiFi

• Ethernet

• Bluetooth

• Surfstick (Huawei, ZTE)

• SimCon SIM900A (GSM/GPRS)

  • can be used to connect RPi to public server via GPRS (G2, G2.5, G3?)
  • to be reachable from outside a public IP is necessary
  • public APN (IP) is very hard to become at present due to IPv4 addressing limitation. In 2019 Telekom should make IPv6 officially available.

• 433Mhz RF Communication Receiver (RF=Radio Frequency)

• nRF24L01+ 2.4GHz

• see

  • https://electronics.stackexchange.com/questions/144358/wireless-home-automation-2-4ghz-versus-433mhz
  • https://forum.arduino.cc/index.php?topic=111847.0

• Web Stack:

  • Operating system -> Raspbian (Debian derivate)
  • Web server -> nginx, Apache
  • WSGI server -> Green Unicorn, uWSGI, mod_wsgi, CherryPy
  • Web microFramework -> Flask (Python)
  • Database -> OrientDB, MariaDB, SQLite

• Rasbpian

  • Mosh (MobileSSH)
  • Docker on RaspPi
    • https://blog.alexellis.io/live-deep-dive-pi-swarm/
    • https://blog.alexellis.io/getting-started-with-docker-on-raspberry-pi/
    • https://github.com/docker-library/official-images
    • https://hub.docker.com/r/arm64v8/mediawiki/
    • https://hub.docker.com/r/arm64v8/alpine/
  • https://github.com/alexellis/pizero-docker-demo/tree/master/iotnode

Gabi (Arduino Uno Rev. 3)

• 433Mhz RF Communication Transmitter
  • https://www.instructables.com/id/Wireless-communication-Arduino-RF/
  • ESP8266, nRF24L01 and 433MHz module
  • In Europe, the 433MHz, 868MHz and 2.4MHz can be used with limited power
  • For the 433MHz, a transmitter may only transmit during 10% of the time
  • There are good transceiver modules for 433MHz and 2.4GHz. Google for "Sparkfun wireless buying guide" to see a nice list of possibilities. Or check the modules that are supported by the RadioHead library at airspayce.com/mikem.

Fran (Public server)

• to be established