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What Is an Air Cathode? (with picture) All About LEDs. Multimeter Tutorial - Voltage. Coloring book - Ladyada's E is for electronics ID: 1000 - $9.95. Arduino Lesson 10. Making Sounds. For the first part of this lesson, the only thing on the breadboard is the Piezo buzzer.

Arduino Lesson 10. Making Sounds

One pin of the piezo sounder goes to GND connection and the other to digital pin 12. Program your Arduino with the following sketch: To play a note of a particular pitch, you specify the frequency. See the following section on sound. The different frequencies for each note are kept in an array. The 'for' loop will count from 0 to 9 using the variable 'i'. The Arduino command 'tone' takes two parameters, the first is the pin to play the tone on and the second is the frequency of the tone to play. When all the notes have been played, the 'noTone' command stops that pin playing any tone. We could have put the tone playing code into 'loop' rather than 'setup', but frankly the same scale being played over and over again gets a bit tiresome. Connector Basics. Favorited Favorite 3 Introduction Connectors are used to join subsections of circuits together.

Connector Basics

Usually, a connector is used where it may be desirable to disconnect the subsections at some future time: power inputs, peripheral connections, or boards which may need to be replaced. Covered in This Tutorial In this tutorial we will go over: Basic connector terminologyCategorize connectors into distinguishable categoriesTalk about the differences between connectors within those categories.Show how to identify polarized connectorsTalk about which connectors are best suited for certain applications Suggested Reading You may find these concepts useful before starting on this tutorial: Connector Terminology Before we get started discussing some commonly used connectors, let’s explore the terminology used to describe connectors.

Male (left) and female 2.0mm PH series JST connectors. Polarity - Most connectors can only be connected in one orientation. A polarized North American wall plug. USB Connectors. Is <I>this</I> connected to <I>that</I>? Use a homemade electronic tester to find out if electricity can flow between two objects. Please ensure you have JavaScript enabled in your browser.

Is <I>this</I> connected to <I>that</I>? Use a homemade electronic tester to find out if electricity can flow between two objects.

If you leave JavaScript disabled, you will only access a portion of the content we are providing. <a href="/science-fair-projects/javascript_help.php">Here's how. </a> Abstract What do lamps, computers, televisions, printers, and kitchen appliances all have in common? Objective The objective of this science fair project is to build a simple circuit tester and use it to investigate how electricity flows through a household lamp. Credits David Whyte, PhD, Science Buddies Cite This Page MLA Style Science Buddies Staff. APA Style Science Buddies Staff. (2014, April 21). Share your story with Science Buddies! I Did This Project! Last edit date: 2014-04-21 Introduction Electricity is like water in a river, it flows. Electricity has to flow into and out of an object to provide power, and the path of the electricity is called a circuit.

Squishy Circuits

Tutorials. LED series parallel array wizard.