Transistor, MOSFET

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i have arduino yun. goal control remote control emulating button press. button switches gnd. use 5 v of usb powers yun power remote (over 3v regulator of course) , use gnd switch buttons on using transistor or mosfet.

the mosfet tried not able triggered yun (bs170).

so found npn transistors use:
s8050
s9013
s9014
s9018
2n3904
2n5551
a42
c1815
c945

what think?


look logic level mosfets if want use them.  either way, assuming open-collector (or open-drain) circuit.  if case, great!  if not, you'll need revisit plans.



Arduino Forum > Using Arduino > General Electronics > Transistor, MOSFET


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