1 Tutorial: How to design a transistor circuit that controls low-power devices
A tutorial on using a transistor to switch a load that an Arduino pin cannot drive directly, commonly suggested for relays, motors and LED strips.
Topic
switching loads
6 videos. Ranked by independent recommendations, not by views.
2 Electronic Basics #23: Transistor (MOSFET) as a Switch
An Electronic Basics episode on using a MOSFET as a switch, offered as an introduction to driving higher-voltage loads from a microcontroller pin.
3 Control 12v LED strip from Arduino using a Mosfet
A practical example of switching 12V loads such as LED strips from an Arduino with a MOSFET, which viewers have used as the basis for their own builds.
4 Practical MOSFET Tutorial
A six part MOSFET tutorial series by Julian Ilett, suggested as a gentle introduction to how these transistors switch loads in Arduino and hobby circuits.
5 SparkFun According to Pete 3-5-12: Mosfets
Pete from SparkFun gives a relaxed overview of MOSFETs and why they suit switching loads from a microcontroller.
6 Use Arduino to Switch Power On and Off!
A beginner relay tutorial showing an Arduino switching power to a load, though one commenter questions driving the relay straight from a pin.
