Raspberry Pi of Goemon

Raspberry Pi3 learning blog

「 tact switch 」 一覧


Utilize an internal pull-down resister

In the previous post, I checked how a pull-down resister functioned. When it’s there the system worked as expected. However once it’s taken off, then LED became unstable. Actually, Raspberry Pi 3 contains an internal pull-down resister and you can enable it by coding. Today, I’m gonna show you how you can enable an internal resister and how it works. Don’t worry, it’s very simple 🙂


Control LED by tact switch

In a previous post, how to blink LED with Raspberry Pi 3 was introduced (Blink LED on Raspberry Pi 3 ). In this work, I just got an “output” from Raspberry Pi. Today, I will send an “input” to Raspberry Pi by using a tact switch.By sending an input, you can get Raspberry Pi to send an output. With this work, you can turn on/off your LED with a tact switch. Table of contents Tact switch Hardware setup Code Result Reference What you need You may want a nipper to cut the legs of resister if they are long. Name Qty Resistor …