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Ola Amigos,

chcel by som merat temperature a humidity vo viacerych miestnostiach a vonku, nepoznate nejake wireless, alebo teda cable solution, najlepsie raspberry pi, alebo solution na x86, pripadne arduino..

neviem ani kde mam zacat, ale kedze to nebude na nejaku mega production vyuzitie, budget bude limitujuci.

asi sa to cele vyvinie od toho ake sensors zozeniem.

Muchas Gracias




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RicCo
 RicCo      27.08.2015 - 16:24:15 , level: 1, UP   NEW
Ja mam skusenost s DHT22 (aj 11, ale ten mi blbol), kupit lacno sa daju napr. tu: http://www.dx.com/p/dht22-2302-digital-temperature-and-humidity-sensor-module-184847 a schema ako to zapojit je napr. tu: https://learn.adafruit.com/dht-humidity-sensing-on-raspberry-pi-with-gdocs-logging ten trojkolikovy z dx uz asi nepotrebuje ani ten rezistor zaojit, na adafruit su celkom dobre maualy, alebo googli dht22 potom jednoducho v pythone citas z pinu a mozes s tym robit prakticky cokolvek...

P.S: asi lepsie forum na tuto temu: https://kyberia.sk/id/6763798

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macrek
 macrek      27.07.2015 - 15:51:03 , level: 1, UP   NEW
Nebudem skupa hnida a podelim sa. Tiez planujem riesit nieco podobne a nazbieral som si par matrosov.

Ten serial z root.cz je fajn. U mna ale zatial vyhrava wireless. Uvidim ako feasable to bude. Zatial si pomalicky dokupujem komponenty ako DVB-T dongle a wireless snimace z ebayu. Relativne lacne vecicky to su, ale pustit sa do toho chcem az niekedy v jeseni.
Tych moznosti (aj wireless) je ovela viac, ale taky maly vyber:

- Rtl_sdr kniznica s pouzitim USB DVB-T dongle (cca 20-30e, na ebay vraj za 8e). DVB-T dongle vie chytat velky rozsah frekvencii. Je mozne ho pouzit aj ako spectralny analyzer.
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xdvb-t+usb&_nkw=dvb-t+usb&_sacat=0
-

- Rtl_433 kniznice (vychadza z rtl_sdr) s pouzitim 433 Recivera (objednane z DX)
https://github.com/merbanan/rtl_433
http://www.princetronics.com/how-to-read-433-mhz-codes-w-raspberry-pi-433-mhz-receiver/

o Pouzitie bezdrotovych meteo stanic – je mozne ze utility z RTL_433 nebudu vediet signal zachytit/dekodovat
o http://www.disk91.com/2013/technology/hardware/oregon-scientific-sensors-with-raspberry-pi/
http://goughlui.com/2013/12/20/rtl-sdr-433-92mhz-askook-decoding-of-various-devices-with-rtl_433/
o http://www.conrad.sk/venkovni-teplotni-senzor-pro-s522-s331b.k393244#


o Pouzitie 433 transceivera (objednaneho z DX)
§ Ak by sa aj transceiver pripojil na dalsi raspberry tak no problem
http://shop.ninjablocks.com/blogs/how-to/7506204-adding-433-to-your-raspberry-pi

§ Idealne by bolo pouzitie standalone transceivera
PrivateEyePi take predava:
http://www.projects.privateeyepi.com/home/home-alarm-system-project/wireless-temperature-sensor-project

- S pouzitim XBee
o http://www.brettdangerfield.com/post/raspberrypi_tempature_monitor_project/#disqus_thread


dalsie hacking sites:
http://samy.pl/dingdong/
http://www.slideshare.net/yashinm/sniffing-the-airwaves-with-rtl-sdr
http://www.kukk.org/blog/sdr/reading-data-from-433mhz-temperature-probes/
http://arcanumx.com/?p=44
http://goughlui.com/2013/11/15/improving-rtl-sdr-decoding-of-the-efergy-wireless-energy-monitor/
http://www.kukk.org/blog/sdr/messing-with-433mhz-equipment/

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hugis
 hugis      04.07.2015 - 19:06:15 , level: 1, UP   NEW
Pre začiatok, tu máš celý seriál o tom:
http://www.root.cz/serialy/inteligentni-internetovy-termostat/#ic=serial-box&icc=title