A potentiometer is a simple knob that provides a variable resistance, which you can read into the Arduino board as an analog value. In this example, you’ll connect a poterntiometer to one of the Arduino’s analog inputs to control the rate at which the built-in LED on pin 13 blinks. Circuit image developed using Fritzing. For […]
Have you ever wanted to turn the lights ON or OFF just by thinking about it? Or do you want to know how stressed you are by looking at the color of a RGB led? While now you can by following this Instructables! To get a feeling for what we are going to make today […]
WhatThis button pad is made using a PCB and other components manufactured by Sparkfun. It is driven by an Arduino Mega. Each button is nice and squishy and satisfying to press, and it has an RGB LED inside! I’ve been using it to control animations I’ve coded in Processing. The button pad sends a message […]
What it is: An Arduino-based light-sensitive switch for turning on a desktop computer. Why its cool: Use a Sonic Screwdriver to turn on your computer! Story: This project started, as I’m sure a lot of them do, as a result of boredom and the thought “Wouldn’t it be cool if…”. I am a fan of […]
In this instructable i will explain how to connect 7 segment display, decoder and arduino. It´s pretty easy. At first we have to learn something about decoder. I´m using BCD to 7 segment decoder. My is D147D, this is old chip, but the newer are similar. Documentation about one of them you can find here […]
Whether you’re already a kid or not; you are going to become one as soon you see bubbles floating around you! You’ll be lying if you say that you don’t pop one on seeing one! Alas, everything isn’t the same for the one who’s blowing the bubbles. But things are going to change now, with […]
Many times, we often use LCD as display equipment, from tiny temperature monitors to large industrial equipment. The funny thing in this project is that it combines two Red LED Matrices as display. You don’t need other devices except Arduino to drive it. This project is build for to counting the shipped with wifi support. […]
Well, hello there! My name is Manou and this is my very first instructable. This instructable is all about making a mechanic arm with an arduino genuino uno! This all started with this basic idea: I wanted to make a robot that made art and during a conversation with a student, I figured it would […]
The Problem It is late night, and your cellphone rings. You can’t see where it is, you blindly grope around your nightstand, trying in vain to find that illusive switch that will illuminate your side of the bed. You clumsily turn on the lamp, locate your cellphone…and you miss the call. Damn. If only your […]
This example shows how to use the tone() command to play different notes on multiple outputs. The tone() command works by taking over one of the Atmega’s internal timers, setting it to the frequency you want, and using the timer to pulse an output pin. Since it’s only using one timer, you can only play […]
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