Electronics MOSFET Switch control disco lights with Raspberry Pi, Arduino, micro:bit or Pico

[@Drxxx]

Super video

[@PenguinTutor]

Thanks

[@JoshYoungMD]

Thanks!

[@PenguinTutor]

Thank you!

[@roamingcelt]

Why does it sound like the Drain and Source do opposite jobs?

[@PenguinTutor]

When thinking about conventional current (current from +ve to gnd) then the names of the drain and source appear to be incorrect, but if you think in terms of electron flow then it makes more sense.
For most components the connectors are named based on conventional current, but for some reason MOSFETs are different. That does make it confusing :-(

[@pjm1981]

How do you calculate the ideal ptc fuse rating?

[@PenguinTutor]

Work out the maximum expected current and choose the next highest value.
Eg 4 X 5 W lights would be 20W. At 12V that will be around 1.7A. So a 2A fuse should be sufficient.

[@pjm1981]

@@PenguinTutor Thank you.