# Multimeter

## Accessibility Tools for Physical Computing

This page lists tools, techniques, and resources that may be helpful to students with differing abilities who want to build the projects described on this site. It is a constant work-in-progress, so if you have suggestions for additions, please let us know. General Resources Tactile Schematics The Physical Computing schematics redesigned for tactile use and a…

Read More Accessibility Tools for Physical Computing

## Labs: Electronics

The following labs are about the basic concepts regarding Electronics, Components and Soldering: Components Setting up a Breadboard Switches Soldering Electronics

## Understanding DC Power Supplies

Overview Power supply is a reference to the source of electrical power. Most electronic circuits require a DC power supply. The most common operating voltages for microcontrollers and digital processors are 5V and 3.3V. There are many different kinds of DC power supplies but this one is most commonly used here at ITP: – Click…

Read More Understanding DC Power Supplies

## Videos: Prototyping Methods and Tips

ITP Videos by Jeff Feddersen on Vimeo. Watching time for videos on this page: 32:09   Sometimes you want to communicate between a microcontroller and a mobile device. Tom and Jeff show you how to use your laptop as a web server to connect a p5.js sketch on your tablet to to your microcontroller via a…

Read More Videos: Prototyping Methods and Tips

## Lab: Electronics

Introduction This lab will introduce you to a few basic electronic principles by trying them in action. You’ll learn how to measure voltage, amperage, and resistance using a multimeter. You will also learn about components in series vs. parallel and be introduced to Ohm’s Law in practice. For more information on the theory behind this…

ITP Videos by Jeff Feddersen on Vimeo. Watching time for videos on this page: 82:43   Digital input with internal pull-up resistors: Pseudo-analog output: Multiple Inputs or Outputs Jeff explains how a multiplexer allows you to connect multiple analog or digital input circuits to a single microcontroller input. Jeff and Tom explain how to use shift…

## Videos: Tools

ITP Videos by Jeff Feddersen on Vimeo. Watching time for videos on this page: 25:02   Soldering video by Andy Sigler: