Recommendations for humidity and temperature sensors

I need to put humidity and temperature sensors in a few areas of my and I'm going to need wired (to a Raspberry Pi, most likely) and wireless. I don't mind building the devices but would prefer something ready made if it's reasonable. Any recommendations before I start looking at mouser and Digikey? Right now I'm in planning phase.

1-wire? For wireless, either existing weather sensors like oregon scientific or other weather station sensors with a universal RF receiver.

az1324 said:

1-wire? For wireless, either existing weather sensors like oregon scientific or other weather station sensors with a universal RF receiver.

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All I could find on my exhaustive search (I spend a whole 2.64 seconds on this ! ) was this:
 
http://www.lostbyte.com/arduino-osv3/
 
AAZ11234, thanks! That wasn't a road I had considered. Heck it even has high WAF (a real bonus).
 
Now, I'll need to work out the budget and planning

Weather stations might be overkill, but the ( great ) Weather Underground lists a few systems which have integration points. They're mostly packages from Ambient Weather.

the trick is the budget.

I think you'll find this thread interesting. The JeeNode stuff may do it for you?

http://forum.arduino.cc/index.php/topic,15662.0.html

I've been playing with several, using a Raspberry Pi and Arduino UNO.  The DHT-11 and DHT-22 sensors do both temperature and humidity.  The TC74A does temperature, but requires the i2C communication protocol, readily available on both the Pi and the Arduino.  The DS18B20 (Maxim) is a 1-Wire device that does temperature. Others such as the TMP36 also will work.  I recommend Adafruit as an excellent source for tutorials, but IMHO Mouser offers much better and quick reasonable shipping.  
 
I'm glad to share with anyone else out there working on integrating Raspberry Pi and/or Arduino into the Elk M1, Insteon ISY994i, Homeseer HSPRO2 universe. 
Post back or PM me.

What I'm thinking about is manipulating Elk M1 zones with relays driven by a Pi or BBB.
 
Also about using a JeeNode to control some indicator lighting using the KP2's output as a power supply.
 
Are these the sort of things you're thinking of, whaltimer?

Instead of relays, you could have the Raspberry Pi issue commands directly to the M1g using the RS-232 protocol, but connected via telnet, if you are comfortable with Python or other of the languages supported by the Pi. I remember that some time ago somebody published a library, but I think that it was Perl.
I did some of this several years ago on Python, but I don't keep the code.

whlatimer said:

I've been playing with several, using a Raspberry Pi and Arduino UNO. The DHT-11 and DHT-22 sensors do both temperature and humidity. The TC74A does temperature, but requires the i2C communication protocol, readily available on both the Pi and the Arduino. The DS18B20 (Maxim) is a 1-Wire device that does temperature. Others such as the TMP36 also will work. I recommend Adafruit as an excellent source for tutorials, but IMHO Mouser offers much better and quick reasonable shipping.

I'm glad to share with anyone else out there working on integrating Raspberry Pi and/or Arduino into the Elk M1, Insteon ISY994i, Homeseer HSPRO2 universe.
Post back or PM me.

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I've got an Elk-M1 & and the ISY99i (I haven't integrated them together).

I'm also doing some work with the Pi & a chipKIT_Pi (like the UNO, but mo' better in certain respects). I haven't worked out anything with the sensors. Still planning there, may just use an XBee and be done with that (I already have some XBee stuff).

elcano said:

Instead of relays, you could have the Raspberry Pi issue commands directly to the M1g using the RS-232 protocol, but connected via telnet, if you are comfortable with Python or other of the languages supported by the Pi

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I think my problem with this approach is that one can only trip a zone for some undefined period. The 'zt' command apparently can trip a zone but there isn't any API definition of the duration of the zone being tripped, or how to reset it.

If anyone has more insight on the ZT command it would be fun to hear.

Currently I'm using Elkington, a node.js package, running on an OS X server running on a Mini. The same OS X server is dealing with Axis and Vantage TCPIP, as well as the very nice BenSoftware Security Spy. Once this is dialed in I'll push the node.js stuff down to a Beagle Bone ( foo ) and reclaim the Mini.

back on thread, I do think the JeeNode stuff would do this very nicely

BaduFamily said:

What I'm thinking about is manipulating Elk M1 zones with relays driven by a Pi or BBB.
 
Also about using a JeeNode to control some indicator lighting using the KP2's output as a power supply.
 
Are these the sort of things you're thinking of, whaltimer?

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Actually, my initial design thoughts were more along the lines of a network of Arduino-compatible processors with sensors and low-cost wireless communication, 9v battery power communicating with a Raspberry Pi running Apache2 web server which in turn communicates with the Network Module on my ISY994i.  I recently found Nordic Labs NRF24LC01 and managed to get a pair of them talking over 2.4ghz band.  I have several of the ATTiny processors (85, 84) as well as an Arduino Nano 3 "compatible" on order.  Cost is of course a major consideration.  Thanks for bringing JeeNodes to my attention; they look promising.  
 
Alaways open to new ideas and happy to exchange thoughts and experiences.

linuxha said:

I need to put humidity and temperature sensors in a few areas of my and I'm going to need wired (to a Raspberry Pi, most likely) and wireless. I don't mind building the devices but would prefer something ready made if it's reasonable. Any recommendations before I start looking at mouser and Digikey? Right now I'm in planning phase.

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Linuxha, I just came across this ( while looking for something else ):
 
http://docs.spark.io/#/
 
it looks like it currently 'phones home' but they promise to release the server side bits.

Some pals back in Spain just reminded me about Cooking Labs's Waspmote series. These are Arduino code compatible low-power use items with an extended family of sensors.


http://www.cooking-hacks.com/documentation/tutorials/waspmote


the Cooking Lab people will be at this year's Bay Area MakerFaire.

BaduFamily said:

Some pals back in Spain just reminded me about Cooking Labs's Waspmote series. These are Arduino code compatible low-power use items with an extended family of sensors. http://www.cooking-hacks.com/documentation/tutorials/waspmote the Cooking Lab people will be at this year's Bay Area MakerFaire.

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Badu, thanks. I haven't settle on anything yet so everything is appreciated.

BaduFamily said:

What I'm thinking about is manipulating Elk M1 zones with relays driven by a Pi or BBB.
 
Also about using a JeeNode to control some indicator lighting using the KP2's output as a power supply.
 
Are these the sort of things you're thinking of, whaltimer?

Click to expand...

 
Similar yes.  I have an Insteon ISY994i Pro with the Elk Integration module.  I have ~20 Insteon devices (lamp modules, switch modules, sensor / relays and motion sensors).  The ISY994i handles all the scheduled lighting events and reacts to Elk zone violations.  See some of my other posts for more details. 
 
Raspberry Pi and/or Arduino open a whole new world of possibility. I enjoy my new adventures in home automation.