w7ky
New Member
I need some assistance solving a problem with the Water Detector circuit on page 126 of the PicAxe Microcontroller Manual by D Lincoln. I've been working along on the examples quite nicely and had this circuit working two weeks ago. Now I can't get it working again and I don't see what has gone astray. I've tried three new transistors and three new 08m's. The terminal shows Pin3=1 when the probe is dry, but no response when the probe is wet. With the probe wet, the program seems to halt after checking pin3. There's 5.02v on the collector dry, and 38mv wet. I've also reloaded the editor and tried both the original and enhanced mode. . Everything looks like it did when working, but I can't find the problem. Images of my code and circuit are here: http://ferrycreek.com/PicAxe/PicAxe1.jpg & http://ferrycreek.com/PicAxe/PicAxe2.jpg
I have a promonition this may reveal my specific density, but after three days of fiddling I'm ready to accept the exposeure.
Thanks, Doug
I have a promonition this may reveal my specific density, but after three days of fiddling I'm ready to accept the exposeure.
Thanks, Doug