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[wxsig] Still looking for solution :-(

Bill Hosking hoskingb at earthlink.net
Sun Nov 12 21:17:53 UTC 2006

The problem continues with no solution...

Platform: original T238 board with T238+ rom, updated to 1.15.8R software
1-wire: Temperature, Wind speed/direction, rain, and now x1w2 outside 
humidity board.
Voltage: I am running +5 up pin 1 of the cable (with appropriate jumpers)

Problem: with system initalized and working (have temp,wind/rain readings), 
I go to the Sensor menu, bypass the existing setups, and set 'yes' on the 
humidity sensor, complete the sensor chain. Now when I get to the 'Display 
Current Data', it hangs there forever. Either reset or power down do the 
same. By removing the sensor cable, resetting, and telling the box to erase 
the humidity sensor, I can return to a functioning temp/wind/rain operation.

Thanks to John Bennett, I have all the test utilities. So I tested using a 
home-brew version of John's adapter that is contained on the x1w1 board 
because you can't supply the 5V on the purchased adapter.

testfnd: runs perfectly and displays the correct 1-wire interface codes.

tsthumd:runs perfectly giving me a reasonable humidity and temperature 
reading and also reads 5V for the voltage. As an additional test, I took the 
5V jumper off and the test reads back no humitity and 0.00V on the voltage 
reading which tells me the +5V is getting up to the box on the roof..

This would seem to tell me that the wiring and supply voltage are all 
correct. Problem remains - the t238 still hangs up at display current data.

To try one last thing, I went up on roof and pulled jumper on temp sensor on 
x1w2 board and retried in case there was a conflict between the two temp 
sensors. Result - no change.

What I suspect is that the SW is hitting something it cannot deal with in 
spite of the fact that the tsthumd says all is ok but I am not a programmer 
so, even though the source code is available, it would be of little use to 

So - unless someone has an idea (other than pulling down and re-wiring whole 
system), I'll probably just put the cover back on the humidity box and 
forget it.

Any great ideas out there guys??? Is the original T238 board incompatable 
with the T238+ firmware some way??

A frustrated Mr Bill 

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