| Electronics > Beginners |
| Simplest circuit to connect/diconnect a wire. |
| << < (5/6) > >> |
| hgg:
A single MOSFET did not work. Two MOSFETS with connected source to source and gate to gate did not work either. The only thing that finally worked was the following: |
| SilverSolder:
That looks good. Funny how even the simplest projects can end up surprisingly complicated! |
| max_torque:
er, just use a relay. Cost buttons, nothing complex, provides isolation etc etc. There is no speed or high repetition rate required and it is replacing a mechanical switch (which uses human power to push two bits of metal together to make contact) with a relay (that uses a magnetic solenoid to push two bits of metal together to make contact) |
| ebastler:
--- Quote from: max_torque on April 21, 2019, 12:36:48 pm ---er, just use a relay. --- End quote --- Well, from the OP’s experiments and the solution he came up with, it looks like the PIR output is a bit wimpy. Not sure whether it could drive a relay directly? |
| hgg:
@SilverSolder Indeed. When I started this mod, I thought, that would be pretty easy. @ebastler Its the HC-SR501. |
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