Can anyone point me at a supplier of wireless thermometers and anemometers. I can only seem to turn up "weather station style" kit. I'm looking for something more along the lines of independant sensors and where the data can be downloaded wirelessly to a mac. Thanks for any help.
-- It's a foggy day in Shanghai
I have had this sort of problem twice, and solved it by two different approaches. When I wanted short range wireless transfer I used radio modems that supported serial links in the 400MHz range (no licence needed for limited range use in the UK). The anemometers were ultrasonics with serial output (Gill instruments). We had several, so we made microprocessor units to buffer the data from each anemometer and then polled them in sequence. Range is about half a mile max.
I had a longer range problem getting data from a field on a dairy farm in which I had an anemometer and some ammonia measuring instruments. Again all had serial data streams. I installed a laptop to read the data streams, and then at regular intervals it used an attached mobile phone and GPRS to FTP the data up to a website. The only problem I had is the GPRS function seemed to be screwed up by promotional text messages occasionally sent by the phone company. But GPRS was brand new then - that was many years ago.
There's plenty of companies out there offering bespoke solutions if you don't want to build your own, eg
Steve
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