Temperature Sensors

[edmidor]

What are the simplest ways to have in-room temperature sensors - separately from HVAC?

I'm running z-wave with Micasaverde Vera as main controller, in next release it's expected to be able to control anything controllable by USB, RS-232, X10, Insteon, etc.

So, besides Homeseer HSM100, what room temperatures sensors I can think about? Preferably wireless, but it's not critical.

 

[nightwalker]

I use the temp08 and DS18s20 sensors here, not wireless but I'm not a wireless fan anyway. Been rock solid since I installed them last year.

 

[jwilson56]

I also use 1-wire... from Hobbyboard guys

Rock solid

 

[jaysonc]

Another vote for 1-wire. I use both sensors from Hobbyboards and ICs directly from Dallas/Maxim I wired into more complex locations.

Never misses a beat.

 

[pete_c]

1-Wire sensors. I have a Temp05, Temp08 and 2 9097's with 4 autonomous 1-wire networks. I also have a "few" HAI temperature/humdity sensors setup. Originally started with samples from Maxim, then purchased from AAG, Midondesign & HB.

 

[edmidor]

My understanding is that 1-Wire requires.. existing 1-Wire infrastructure, which might be too complex solution for 1-2 sensors.
Besides, cost of 1-Wire hardware, plus Linux router with serial-to-USB adapter to connect 1-Wire branch over Wi-Fi bridge... looks like it's going to cost more then I planned.


Any other options? May be Insteon, or something with direct Ethernet, RS232, USB interface?
I even heard of some mysterious z-wave sensors, but they make it only European version...

 

[beelzerob]

I use a Datanab Ai32. They have a pretty wide array of sensors, besides temp, but even the temp sensors, there's flush ones that mount directly in drywall, there's ones that are a single gang box cover, hvac duct temps, water temps, etc. Quite the nice array.

The connection is RS485, but a $6 adapter off of ebay and it'll work on RS232 fine.

 

[sic0048]

You might look at the QKits VK011 Module. It allows you to hook up to 4 temp sensors (actually the same as some of the 1wire devices). The module runs about $40 which includes 1 temp sensor. You can purchase other sensors for less than $10 each.

It has a RS-232 protocol and there is an existing CQC driver for it. I'm sure there would need to be something written for the Micasaverde Vera, but it should be doable.

 

[edmidor]

Thanks! :rofl:

I also found this interface http://www.embeddeddatasystems.com/HA7Net-...er_p_39-22.html, which seems to be easily integrable into anything, a bit expensive for my purpose though...

 

[jaysonc]

The HA7Net is what I use. Not the cheapest device, but other solutions start adding up if you do not have pre-existing equipment.

The HA7Net has been very reliable for me. I don't regret the price.

A few other benefits I count for myself:

1. Allows me to leverage my existing ethernet network.
2. I can place the adapter in an optimal location to minimize the 1-wire network length. (increases reliability)
3. Provides an extra level of lightning protection. A strike will take out a $150 device rather than my $1500 computer.

--
Jayson