Arduino, Tutorial

Arduino Tutorial 22: Understanding and Using Active Buzzers to Add Sound to Your Project

In this lesson we show you how to add sound to your Arduino project using a buzzer, The Elegoo Super Starter kit contains two buzzers, an active buzzer and a passive buzzer. The active buzzer is the easiest to use, as you just need to apply 5 volts to it to get it to go off. In this lesson we show you how simple it is to use the active buzzer with Arduino. In future lessons we will show you how to use the passive buzzer.

The advantage of the active buzzer is that it is easier to use. Just apply 5 volts, and it goes off. The advantage of the passive buzzer is that it is cheaper, and allows you more control of the tone, or pitch of the sound produced.  If you want to follow along at home, you can order the Arduino Kit we are using HERE.

Arduino, Success

Arduino Tutorial 21: Understanding and Mixing Primary Colors with an RGB LED

In lesson 20 we showed you how to connect up an RGB LED, and how to program it to get the primary colors, based on input from the user. In this lesson we look at mixing colors and getting a wide array of colors from the LED by mixing the R, G, and B channels. As examples, we use RGB mixing to create Cyan, Magenta, and Yellow. These are just examples, and any of the in between colors can also be mixed.

If you want to follow along at home, you can order the Arduino Kit we are using HERE.

The video shows how to connect the circuit, and also takes you step by step through the code. If you need extra help, the code is included below.

 

Arduino, Tutorial

Arduino Tutorial 20: Understanding RGB LED’s

In this lesson you will learn how to work with RGB LED’s. RGB LED’s can be used to create not only the primary colors, but also all mixtures of the primary colors. This video shows you how to connect up a Common Cathode RGB LED. This project is a little more complex than the ones we have done in the past, so I include the code down below. While the code is here for your reference, you should not just copy and paste it. In order to really learn, you need to type it in for yourself, and then find and debug your mistakes. If you just copy and paste from me, you will never learn how to troubleshoot.

In these lessons, we are using the Elegoo Arduino kit, which you can purchase HERE.

Arduino, Tutorial

Arduino Tutorial 19: Reading Strings from the Serial Monitor

In lesson 18 you learned how to read integers or floating point numbers into the Arduino from the Serial Monitor. It is also very helpful to be able to read Strings, or words from the Serial Monitor. In this video we show you the ins and outs of reading Strings into the Arduino.

If you want to follow along at home, you can order the Arduino Kit we are using HERE.

Arduino, Tutorial

Arduino Tutorial 18: Reading Numbers from the Serial Monitor

In many projects, it is very useful to get input from users. You need to be able to prompt the user for input, and then input that information into the Arduino. In most cases, users will not know how to program, so you need to have an easy way to interact with them. In earlier lessons, we showed how you can send messages or information from the Arduino using the Serial Monitor. In today’s lesson, we show you how to read input from the user through the Serial Monitor.

If you want to follow along at home, you can order the Arduino Kit we are using HERE.

Making The World a Better Place One High Tech Project at a Time. Enjoy!