You're reading from DIY Microcontroller Projects for Hobbyists

Product typeBook

Published inJul 2021

Reading LevelBeginner

PublisherPackt

ISBN-139781800564138

Edition1st Edition

Languages

Tools

ARM Cortex

Concepts

Microcontroller

Authors (2):

Miguel Angel Garcia-Ruiz

Pedro Cesar Santana Mancilla

View More author details

Testing out the push button

In this section, we will focus on testing a push button. Before using it with a microcontroller board, it's a good idea to try it out to see if it works mechanically, and testing allows us to find out if the push button is normally closed or normally opened. The following image shows how to connect all the components to try out the push button:

Figure 3.10 – Connecting the push button to an LED and a battery pack

As you can see, we don't need to connect a push button to a microcontroller board to test it. Here are the steps for connecting the components and testing the push button:

Connect the batteries' positive (+) terminal to one pin of the push button.
Connect the other push button pin to the 220-ohm resistor.
Connect the 220-ohm resistor to the LED's anode pin.
Connect the LED's cathode pin to the batteries' negative (-) terminal. Be careful when connecting the LED...

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DIY Microcontroller Projects for Hobbyists

Published in: Jul 2021Publisher: PacktISBN-13: 9781800564138

Authors (2)

Miguel Angel Garcia-Ruiz

Miguel Angel Garcia-Ruiz is an Associate Professor of Computer Science at the School of Computer Science and Technology, Algoma University, Canada. He has taught microcontroller programming and interfacing, human-computer interaction, and interaction design courses. Miguel has a PhD in Computer Science and Artificial Intelligence from Sussex University, England. He has published articles on tinkering with technology applying microcontroller boards. Miguel has conducted research projects funded by Canada's Northern Ontario Heritage Fund (NOHFC), Algoma University, and the Mexican Ministry of Education.
Read more about Miguel Angel Garcia-Ruiz

Pedro Cesar Santana Mancilla

Pedro Cesar Santana Mancilla is a research professor at the School of Telematics at the University of Colima in Mexico. His research interests focus on human-computer interaction, ICT for elderly people, Internet of Things, and machine learning. He is currently serving as president of the Mexican Association on Human-Computer Interaction (AMexIHC). He is a Senior Member of the IEEE, and ACM and serves as Chair of the Mexican ACM SIGCHI Chapter (CHI-Mexico). Pedro is a member of the Mexican Academy of Computing (AMexComp) and the Mexican Society of Computer Science (SMCC).
Read more about Pedro Cesar Santana Mancilla

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