View previous topic :: View next topic |
Author |
Message |
kender
Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley
|
[OT] 433MHz remote measurement modules |
Posted: Thu Aug 23, 2007 6:18 pm |
|
|
My question is not directly related to PICs. I’m posting this question here, because you, guys, have seen a lot of instrumentation in your travels.
I’m looking for a wireless remote measurement system that communicates at 433MHz or lower frequency. FCC compliance is not a problem, because it will be working only for one month, and it will be shielded from the outside world by a chainlink fence.
The purpose of the system is to measure and transmit gas pressure few times a minute for a month. The range is 50 to 100 meters. 4 to 6 units per base station. Of course, I can add my own pressure sensor to a system that has an A/D.
There's a hard requirement that the device shuold be small – smaller than a 9V battery
I guess, I could put such system together myself, but I’ve got a very short notice, and I will need to field this system very soon.
Could anyone recommend?
Thanks,
Nick
P.S. ...back to web search. _________________ Read the label, before opening a can of worms.
Last edited by kender on Sun Aug 26, 2007 12:11 pm; edited 1 time in total |
|
![](templates/subSilver/images/spacer.gif) |
Neutone
Joined: 08 Sep 2003 Posts: 839 Location: Houston
|
|
![](templates/subSilver/images/spacer.gif) |
kender
Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley
|
|
Posted: Thu Aug 23, 2007 8:20 pm |
|
|
Neutone,
Thanks, that't a very neat logger to have in a toolbox. I am considering a logger a a design path. The problem is that I want to see the data often, but I'll have access to the logger only at the end of the month-long experiment.
Nick _________________ Read the label, before opening a can of worms. |
|
![](templates/subSilver/images/spacer.gif) |
treitmey
Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA
|
|
![](templates/subSilver/images/spacer.gif) |
mmprestine
Joined: 13 Jan 2004 Posts: 29 Location: Green Bay, Wisconsin
|
|
![](templates/subSilver/images/spacer.gif) |
kender
Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley
|
|
Posted: Sun Aug 26, 2007 7:28 pm |
|
|
Thanks! Unfotunately they are way too large. _________________ Read the label, before opening a can of worms. |
|
![](templates/subSilver/images/spacer.gif) |
mickent
Joined: 18 Feb 2007 Posts: 22 Location: TN, USA
|
|
![](templates/subSilver/images/spacer.gif) |
|