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Controlling high voltages with the Raspberry Pi

Controlling high voltages with the Raspberry Pi - Raspberry Pi Tutorial

From the course: Raspberry Pi Weekly

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Controlling high voltages with the Raspberry Pi

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- The Raspberry Pi can only send a signal of 3.3 volts and of limited direct current. Larger voltages or larger currents will destroy the Raspberry Pi. Yet, the world is full of higher voltages. Lamps, motors, and other household appliances all take more than three volts. So, how do you bridge from the Raspberry Pi to the real world? The answer is, transistors. Hi, I'm Mark Niemann-Ross and welcome to this week's edition of Raspberry Pi Weekly. Every week, we explore the Raspberry Pi and share useful tips. A transistor is a semiconductor device that allows a small current to control a large current, perfect for what we need. And I recommend watching Use a BJT Transistor as a Switch from the Electronics Foundations Semiconductors Devices in this library. There is a complete parts list included as a handout in the example files. You'll need some basic transistors, resistors, a small motor, and a solid-state…

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