diy strawberry tower aquaponics
Ive been worried about all my dodgy electronics on my solar boat, so I figured I should have a master kill switch that couldnt fail, and came up with a fuse holder and a 6mm bolt, tied to some artfully arranged paracord in the form of a survival bracelet that my brother made for me.
Cut the threaded bit off the bolt, tie a nice grippy paracord handle to it, then put the bolt in the fuse holder that connects all the electrics to the positive terminal.
One pull and everything stops.
It should work.
If it does, I should also be able to clip onto it with with a 2m bungee cord when I want to move around the boat if Im under way. That way if I fall off, the motor will stop. I think its called a dead mans switch. I was originally planning to create one digitally, and I still might if it turns out to be a pain, but if I need it, Ill build it on the boat. If I did it digitally, Id make a simple sonic tape measure with a PICAXE chip that would notice if I left my chair. Then it would beep in 60 seconds, then kill all power to the motor if I didnt wave my hand in front of it within 15 seconds.
I think I prefer paracord and my bolt fuse.
120 Things in 20 years realises a solar deadmans switch sounds like safety overkill, but Ill have junk everywhere, no side rails, and 2000km is a long way to chase a boat moving slightly faster than I can swim on the Murray River.
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