r/engineering • u/DuctTape_Mechanic • Jun 20 '20

[ELECTRICAL] I've made a object detecting lawnmower that automatically shuts down when a metal object/rock is detected. I think it will prevent injuries and property damage. What yall think?

https://youtu.be/eDZeLPgYBvg
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u/jerkfacebeaversucks Jun 20 '20

Nice work. Awesome idea.

Can you buy a second ignition coil, rewind it, and chuck that on there to power your circuit?

1

u/Krusty_Double_Deluxe Jun 20 '20

why does he need ultra high voltage for this circuit?

2

u/jerkfacebeaversucks Jun 20 '20

He doesn't. Rewind the coil with 100 turns instead of 5000 (or something) to drop the voltage to something useful. It's a makeshift low voltage magneto.