Tag Archives: 74HC595N

Arduino: 7 Segment LED with a Shift Register

My latest apartment doesn’t have a thermometer in it.  So, like any good hacker, rather than buy a thermometer, why not build one?  7 segment LED displays can show one digit, but working with them can be a bit tricky.  In this post, I’ll show you how to setup a single digit display with an 74HC595N shift register.

Arduino Uno connected to a 7 segment LCD display through a shift register.

Arduino Uno connected to a 7 segment LED display through a shift register.

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