I have just shared content in Guides > Digital Electronics: “MOSFETs for Makers: Getting Started with High-Power Control”
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First paragraph is duplicated:
The digital pins of a microcontroller are only capable of supplying a few milliamps of current at 3 to 5 volts, so if we wish to control higher-power components (that might require a few Amps of current at much higher voltages) we will need to use something like a transistor.
Writing tip: look for opportunities to replace ‘that’ with other words - ‘which’ would work better here, and if speaking of people, always go with ‘who’ (or even ‘whom’ if you can be bothered remembering the rules for when it applies… on the other hand you look a right putz if you mistakenly deploy it, so I consider it deprecated).
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Cheers for the spot Kimmo, this was my very first guide I wrote working here so its a bit rough in places 
. Gone through and fixed it!
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