From the course: Learning Arduino: Interfacing with Hardware

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MC74HC595A shift register overview

MC74HC595A shift register overview - Arduino Tutorial

From the course: Learning Arduino: Interfacing with Hardware

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MC74HC595A shift register overview

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- [Instructor] Let's take a look at how to wire up our shift register to Arduino board. The shift register we're using is MC74HC595A, which is a serial-in, parallel-out shift register. The MC shift register consists of eight-bit shift register. The eight output bits are referred to as QA through QH. And sometimes we refer to them as Q zero up to Q seven, depends on the type. The serial data is loaded in at pin A Data Serial In, and the parallel data is available at pins QA all the way through QH. If we only have four bits in, the shift register will shift only four bits out. And we can control the state of our LEDs by connecting them to the output pins of the shift register. Let's get started by wiring up our data and clock signals to the Arduino board.

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