In this IoT project, I have shown how to make an IoT-based Home Automation with Arduino IoT Cloud & Alexa using ESP32 to control 4 home appliances with voice commands. If the internet is not available, then you can control the home appliances manually with switches and IR remote. During the article, I have shown […]
Arduino IoT Cloud ESP32 Alexa Voice Control Smart Home | IoT 2021 Read More »
DAC is short for Digital to Analog Converter. In this article we play around the code Michael Smith created for a PWM based DAC. I modified his code so that other DAC options could be tried. I compare the 8-Bit PWM DAC with the R2R DAC at various numbers of bits. You might be surprised
Arduino Audio DAC Options Read More »
Making a hardware synthesizer is a really fun and rewarding experience. But usually with a lead synth you would want to implement ADSR envelopes, multiple adjustable oscillators, multiple types of filters for each, polyphony et cetera et cetera. Those aren’t conducive to a beginner project, but it definitely isn’t impossible to make something that sounds
The Digital Drone Synth Read More »
This project is a part of experiments done while doing an artist in residence at Instructables. You can see the other projects here. Inspired by Korgs Kaossilator I took it upon myself to build an opensource version of it. This way people can design new ways of interacting with the touchpad. The basic principle is creating
Kaosduino: Create your own kaosillitaor using Arduino Read More »
The Mystery Beeping Prank is a device hidden in a hollowed out book that beeps intermittently at different frequencies. I made this because I am surrounded by a lot of incredibly creative people who have a penchant for pranking one another, and this seemed like the most subtly annoying thing that I could think of.
Mystery Beeping Prank Read More »
Wearable Arduino mod for your headphones. Non-invasive procedure for headphones that don’t have room inside the drivers or you don’t want to hack apart your high end cans. Adafruit just put out a tutorial for adding pattern blinking LED lights to headphones. This instructable takes it one step further. This project is really the Adafruit Ampli-tie project morphed
Adafruit Flora NeoPixel LED Ring Headphone mod Read More »
Este tutorial te lleva paso a paso por la construcción de un teclado MIDI de una octava, programable via arduino gracias a su conector de 6 pines. Vas a necesitar: Componentes: 1 Atmega328p con el bootloader de Arduino 1 Zócalo de 28 patas 1 Cristal 16Mhz 2 Capacitores 22 pF 2 Capacitores 10 uF 1
Teclado MIDI Super Simple – Super Simple MIDI Keyboard Read More »
English: This is a simple and easy to make MIDI harp, it runs on an Arduino UNO and uses infrared sensors as strings. It communicates with every recording software that has MIDI. Its really fun to play with and also very cheap, so enjoy!! Español: Este es un simple y facil de hacer harpa MIDI,
Mini invisible MIDI Harp Read More »
The purpose of this Instructable is to build a portable device that can measure the speed of sound in refrigerant gases and use this data to identify them. The speed of sound in an ideal gas is related to two characteristics of the gaseous substance, its molecular mass (kg/mol) and its adiabatic constant (heat capacity ratio), or
Measuring Refrigerant Gases Sound Speed Using Arduino and App Inventor 2 Read More »
This project was submitted to ‘Creative Electronics’, a Beng Electronics Engineering module at University of Málaga, School of Telecommunications (https://www.uma.es/etsi-de-telecomunicacion/). It’s a modification based on sound level meters that are already marketed for use in classes to measure ambient noise. The project is developed in Arduino. It consists of a LED screen in which emoji
Creative Noise Semaphore Read More »
