It would be easier to train the dog to alert you and skip the trip line all together in that case...That's actually not a bad idea. My dog would need to learn to avoid the strings though.
And for those interested, the PIR sensors sold for arduinos are perfect! Compact, cheap, low current draw, and very effective! Id recommend adding a salvaged general purpose transistor as a buffer to increase the current rating on the output logic tho. And also, use energizer lithium because they last a decade amd work at -40 degrees. Standard alkaline will fail in winter.We have perimeter alarms of two types a battery / solar powered PIR/Microwave detector, and trip wired attached to 12 gauge blank shotgun shell alarms.
I put 300g ammonium nitrate/isopropyl alc with an azide cap in a peanut butter jar and tossed it in. The ice in the beer cooler on shore shifted and a bunch of half dollar sunnyes came floating up.in the army we used small improvised explosive charges in glass bottle to stun the fish, much quicker than hook and line
Ive heard of that electroshock thing too, never seen one tho. Id be interested in seeing it just to know if it really works.Its ages since we did it but IIRC it involved Iodene and Ammonia. Yes it only stuns them. Also I see Bushcrafters and wilderness outdoorsy types using those electric fish stunning poles at times.
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