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iotdemo-iiclj's Introduction

IoTdemo-iiclj

Navodila za postavitev novega sistema

Bluemix

Na Bluemix-u postavimo novo aplikacijo Internet of Things Platform Starter.

IoT service

V IoT servisu dodamo nov Device Type z imenom RaspberryPi in naredimo novo napravo tega tipa, ki bo predstavljala naš Raspberry Pi.

Raspberry Pi

Kopiramo kodo iz direktorija rpi na napravo in nato v ukazni vrstici izvedemo naslednje ukaze:

  • sudo apt-get install bluez bluez-hcidump
  • sudo pip install pexpect paho-mqtt
  • Z ukazom cd se premaknemo v direktorij pygatt-2.0.1-readHandle
  • sudo make install

V datoteki advertiseGateway.py popravimo parametre:

  • V vrstici 33 nastavimo ID firefly-a, ki pošilja podatke o pospeških
  • V vrsticah 114, 117 in 118 nastavimo parametre, ki jih uporablja naš IoT servis
  • Za testiranje lahko zakomentiramo vrstico 113, da se program zažene takoj

Kodo lahko zaženemo tako, da se v ukazni vrstici prestavimo na direktorij, v katerem je datoteka advertiseGateway.py in izvedemo ukaz:

  • python advertiseGateway.py

Da se bo koda začela samodejno izvajati ob vsakem zagonu Raspberry Pi-ja, moramo v datoteki advertiseGateway.py odkomentirati vrstico 113 in popraviti datoteko /etc/rc.local tako, da pred vrstico exit 0 vstavimo naslednjo vrstico:

  • python /home/pi/advertiseGateway.py &

Če je datoteka advertiseGateway.py drugje, pot ustrezno popravimo. Sedaj lahko Raspberry Pi ponovno zaženemo in koda se samodejno zažene po približno tridesetih sekundah.

Node-Red

V Node-Red aplikacijo uvozimo logiko aplikacije tako, da vsebino datoteke websocket-relay.txt kopiramo v dialog, ki ga v Node-Red aplikaciji dobimo tako, da v meniju izberemo Import > Clipboard.

Statične strani

Vsebino mape public naše aplikacije zamenjamo z vsebino mape public tega repozitorija. Do datotek naše aplikacije lahko dostopamo z orodji git, cf, ali pa prek spletne aplikacije IBM developerWorks.

Popravimo datoteko index.html tako, da v elementih div razreda hex-text nastavimo atribute id tako, da ti predstavljajo ID-je naših firefly-ev. V datotekah js/code_index.js in js/code_graph.js popravimo spremenljivki host tako, da bosta ti naslednjega formata: "ws://<url naše aplikacije>/websocket"

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