Arduino Processing Audio Spectrum Analyzer

In this Instructable I am going to show how to make a program in Processing that analyzes sound on your computer and sends data to an Arduino that controls an LED matrix to show the spectrum analysis. I will be explaining where to get materials, explaining the coding and wiring needed and providing example programs that can be adapted. I will be using an Arduino Nano and and a 32x16 LED Matrix from Sure Ele ...

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Plantduino Greenhouse using an Arduino

This summer I wanted to combine my two loves of plant science and engineering. Thus I am constructing my very own greenhouse in my backyard. I am an undergrad, and as any former student knows, this means I move around constantly, and I am not always around to take care of my vegetable garden. I love my plants but since I am moving back to school in July, and my family is unreliable, I need a way to make sur ...

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Arduino Solar Tracker

What is does: It searches for the brightest light source like the sun. Step 1: How it works How it works: I'd made a sensor of 4 LDRs with sheets between them The withe stips are the LDRs   When the stick on top is righted to the sun or the brightest point the four LDRs get the same amount of light on them. Example1 when the light is left on top: right-top, right-down, left-down are in the shadow and left-t ...

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Tyco RC Arduino Robot

Wanted to make your own robot but couldn't afford the fancy H-Bridge IC's or etch your own PCB? Want a quick and dirty method of making your own wheeled robot? Then you're in luck, but if you want to make your own wheeled robot AND have a quick and dirty wireless controller for anything then you're REALLY in luck. Required Items: 1 Tyco RC Air Rebound 2 Philips Screw Drivers one smaller than the other one, ...

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My Arduino WordClock

The initial project, and certainly the one to which many were inspired is that of Doug Jackson. http://www.instructables.com/id/The-Word-Clock-Arduino-version/ also inspired by http://www.highonsolder.com/blog/2011/1/8/arduino-word-clock.html  http://www.instructables.com/id/Sleek-word-clock/ Step 1: The Materials The list of materials for the board depends on how you plan to make the electronics, if you wa ...

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Chicken Light Timer using an Arduino

The wife is into raising chickens and now that the daylight savings is getting near she wanted a way to keep the egg laying production in high gear.  According to the material that she reads, chickens will maintain their egg laying production if they get 12 – 15 hours of daylight. I thought to myself, what a great opportunity for me to put together a DIY electronics project that would also be green.  I want ...

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Ultrasonic Range Finder with an ATtiny85 using an Arduino

I’m here to show you how to use a HC-SR04 Ultrasonic Range Finder with an ATtiny85 as well as programming the ATtiny85 using the wonderful shield that randofo created. List of materials: ATtiny85 Programming Library Arduino Uno HC-SR04 Ultrasonic Range Finder and Library Jumper Wires Breadboard ATtiny85 Step 1: Program the Arduino Before you connect your shield to the Arduino Uno, y ...

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Auto Leveling Laser Cross using Arduino

So this Lazy Old Geek purchased a Laser Cross. I created a manual leveling Laser Cross to use for aligning stuff on my drill press: http://www.instructables.com/id/ManualLevelingLaserCross/ Well, being a Geek I decided to make an automated platform that adjusts automatically with an Arduino. Well, the picture may look a little scary but I’ll break it down into little bitty parts. Step 1: Parts Lists Parts L ...

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Arduino 2-axis servo solar tracker

What is a solar tracker? A solar tracker can increase the efficiency of a solar panel by up to 100%! It does this by always keeping the panel perpendicular to the incoming rays of sunlight. here's an equation to prove this: P = AW sin θ P = power generated by the solar panel A = Area of the solar panel W = is the solar constant, which is equal to 1340 watts per square meter θ = the angle of the incoming lig ...

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Arduino Motor Shield Tutorial

The Arduino Motor Shield allows you to easily control motor direction and speed using an Arduino. By allowing you to simply address Arduino pins, it makes it very simple to incorporate a motor into your project. It also allows you to be able to power a motor with a separate power supply of up to 12v. Best of all, the shield is very easy to find. Aside from being sold a number of places online, they are now ...

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Arduino Ethernet Shield Tutorial

The Arduino Ethernet Shield allows you to easily connect your Arduino to the internet. This shield enables your Arduino to send and receive data from anywhere in the world with an internet connection. You can use it to do fun stuff like control robots remotely from a website, or ring a bell every time you get a new twitter message. This shield opens up endless amounts of possibility by allowing you to conne ...

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Arduino True Random Number Generator

This is just a fun project I have been working on in the last little while. If you like this instructable, consider voting for it in the Arduino Challenge! Anyone who has experience with programming will have probably used random numbers in their code. These random numbers aren't actually random though. They are actually generated using an algorithm that produces numbers that appear to be random, but the nu ...

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