The Simplest Arduino Realtime Audio Processing

Do you believe that with some little modification, some of the realtime audio processing can be done with using only Arduino? You still can’t believe it, then please stick with us and read on the article… For this project, the audio input signal is connected via a 10uF capacitor (Remember that you have to use 10uF capacitor, or else it won’t be success!) to the analog input 1 of the Arduino board. Then, you need to add two resistors and a trimpot to the audio signal. After it, a potentiometer is connecting to analog input 0 (This is used to control the audio effects). The pin 11 will be used as PWM audio output connected via RLC filter to the audio output jack (You can choose to connect the output to an active PC speakers as well). You can use a PC and audio software, such as Audacity to generate a test signal. However, the signal is needed to be filtered first, as this to avoid the aliasing effect when the signal gets sampled. This method is to eliminate any… Continue reading

Enlightening Your Life with Biophionitos

What if I tell you, that you can have a virtual pet (not the online one) and you don’t need to spend a dime for the feeding, would you mind to have one? Well, let’s meet this Biophionitos, which it is a reflection on the virtual creative processes and an inspirational DIY project (Your child will love this one for sure). The main objective of the Biophionitos is to create artificial life using the Zootropes idea. Thus, you can easily draw a virtual animal or even use this as a physical animation too. This Biophionitos stuff enables you to compose a limited series of simple polygons. In the final stage, you will get a round shape with sixteen sequences of the animals, which can be printed and inserted in a phenakistoscop. There are four basic modes for this Biophionitos and there are feed, play, hug and light. All of the four modes almost using the same components, which as: Arduino Board (except the EMI board for light mode ) DC Motor 9-12V 22 uF capacitor 1K ohm resistor (it needs… Continue reading