Wx.Ca Is Back
Wx.Ca is back up and reporting all sensors.
This morning when I started to fix the problem, my best guess at the problem was the 1-Wire hub that interfaces the 1-Wire port on the data acquisition Tini board to four runs out to the various sensors.
I have a spare, sort of. This morning, it was just a pile of parts.
So I heated up soldering iron and got to it. Soldering those tiny surface mount components is tricky, but there were only about a dozen of them. Here's the after shot.
After hooking it up to the sensor runs and the Tini board - no change! Oh no.
Some careful isolating of the various sensors showed that when the run to the anemometer on the roof was disconnected, all the other sensors came back.
So, next step was to head up to the roof to get the anemometer. When I brought it inside and opened the case, this is the shaft I found and what should be two bearings.
The right upper bearing has failed and the whole enclosure interior were coated with brown oxide, including the connections and circuit board. That shaft should be smooth its whole length, so the dip in the middle has been ground away to iron filings. The oxide was likely shorting out something. I cleaned up the board and installed it in spare enclosure with a spare shaft and everything seems be working again.
Thanks to everyone who expressed their concerns for the site being down.
1 comment
Jul 20, 2010
StirlingCrazy said...
Great to hear things are back, there is no better weather on the internet.
