Generate musical tones at 440 Hz and 432 Hz with Arduino

Generate musical tones at 440Hz and 432Hz with Arduino

There is a lot of talk about musical scales, of music at 440Hz and 432Hz without at times understanding the meaning of it. In this article we will see how to generate musical scales, the theory behind them, and how to create music at 440Hz or 432Hz. We will do it all using an Arduino board, and a small speaker (or buzzer).

Geiger Counter - Measuring radiation levels with Arduino

Geiger Counter – Measuring Radiation Levels with Arduino

Going back to the old boards that I found in a box, I found this Geiger counter perfectly functional to be interfaced as a shield to Arduino. In this article we will see its features together, and at the same time better understanding what a Geiger counter, or radiation sensor, is and how it works.

Arduino and the WiFi101 Library

Programming WiFi on Arduino with the WiFi101 library

The WiFi101 library allows you to programmatically use WiFi technology on Arduino systems powered by Arduino WiFi Shield 101 or directly using the Arduino MKR1000 board that has integrated WiFi. Needless to say, this library is one of the key building blocks for the development and use of Arduino as a IoT solution.

adafruit circuit playground - a new arduino compatible wearable board main

Adafruit Circuit Playground – a new Arduino compatible wearable board

On the big stage of the Arduino and Arduino-compatible electronic boards there is a new protagonist: Circuit Playground. This board is developed and distributed by Adafruit, and its name is very meaningful….this board is a “playground” for all makers.

In fact, it contains all the features of an Arduino LilyPad board, such as flexibility for wearable designs, but at the same time contains some electronic components (such as multicolored Led, buttons and light, sound and temperature sensors). With these components already integrated, you can create your projects and test them with only this board. Let’s look at it in more detail in this article.

Arduino LCD1602 - Using a liquid crystal display LCD with Arduino m

LCD1602 – Using a liquid crystal display LCD with Arduino via I2C

During the building of your projects for Arduino, you’ll often need to read the output data directly from a LCD display. In this article you will see how to mount a LCD display on your Arduino using the I2C communication. Finally you will see how to program it with a simple example showing how to display text on the display

Arduino Genuino WiFi101 a wifi system

Arduino WiFi101 – A WiFi system for Arduino and Genuino

In this article you’ve seen how to integrate your projects on the Arduino with a WiFi system. Have you seen all the necessary tools to do so, as WiFi101 shield for Arduino boards, and the model Arduino MKR1000 (Genuino MKR1000) where WiFi is already integrated. Also you saw how to install and properly configure the firmware and WiFi101 library. In future articles you will see some useful examples on how to use it.