Microcontrolled Farm Equipment

Modified BaleScoop(for picking hay bales out of the field) from manual levers to arduino controlled functions. This eliminates the need for 3 sets of hydraulic hoses to only one set and operator can focus more on where they are going rather then controling the implement. This is set up for a "Field Mode" and a Travel Mode", and has 3 switched to still control the implment manually to unload the bales or ali ...

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Make Electronic Dice using Arduino

In this project we make electronic dice. Updated 18/03/2013 In this article you can learn how to make an electronic die (die is the singular of dice), using an ATmega328 with Arduino bootloader and a few inexpensive components. The reason for doing this is to introduce another object that you can build, learn from and be proud of. It is a fairly simple procedure, and at the end you will have something that ...

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Arduino UNO Tutorial 6 – Rotary Encoder

We have written a tutorial for Rotary Encoders using a Microchip microcontroller but now would be a good time to make an Arduino UNO version. With a rotary encoder we have two square wave outputs (A and B) which are 90 degrees out of phase with each other. The number of pulses or steps generated per complete turn varies. The Sparkfun Rotary Encoder has 12 steps but others may have more or less. The diagram ...

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PhysComp: Mid-term Project – Instagram TUI – prototyping the interactive elements using Arduino

The physical interface will consist of a 3×3 grid of push buttons that will correspond to a 3×3 grid of images in the Processing program.  Instead of a creating a 2D array of variables to correspond to the buttons’ postions in the grid, each location in the grid will be assigned a number.  Each push button will represent the corresponding number in the image grid.  For the purposes of prototyping, a 5-butto ...

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Stream support for the Arduino MQTT library

MQTT is a lightweight messaging protocol for the Internet of Things. This post details the use of Stream support for large payload storage in the Arduino MQTT library. MQTT is a lightweight protocol, but that doesn't mean that the payloads have to be small. The spec was designed to allow for messages up to 256MB, but taking advantage of this with an Arduino can be difficult as they usually only have small a ...

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Arduino Project 6: Web-controlled music player

Our NetPlay project is built on a standard breadboard. In our previous Arduino masterclass we briefly introduced the Ethernet Shield an Arduino expansion board that adds Ethernet connectivity plus microSD card storage. We used that storage as the basis of a simple one-button digital audio player. It was functional but limited to 8-bit mono WAV files with a 19kHz sample rate. We also gave you the software to ...

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[FTC] Open Feathercoin ATM

Open Fethercoin ATM is an open-source automated teller machine for education and experimentation. Based on John Mayo Smith’s OpenBitcoinATM which can be seen in action here A “voucher” is printed containing a private key QR Code that has been pre-loaded with the correct value of Feathercoin for the denomination deposited during the setup stages. Designed to work with any currency taken note or coin that out ...

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A lightning flash counter

Many years ago, I think it was in 1997, I stepped into an interesting circuit on a book about high voltage [1]. It was the diagram of a simple "lightning flash counter" intended to help in designing lightning protections on power lines. The description was very brief, but following the bibliography reference, I could find the original article [2], published in May, 1972. I always had a fascination with ligh ...

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Rotary Encoder & Arduino

I am not sure, but it was in year 1999, a non-stop (360 degree rotation) potentiometer found in a stereo music system confused me a lot. At that time, I failed to keyed out the strange potentiometer manufactured by ALPS. Later, I learned that it’s a Rotary Encoder (thanks to internet), and bought one such component from an online store for $2. A rotary encoder (RT) is a device that you can rotate infinitely ...

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Flamethrowing Jack-O’-Lantern

A flamethrowing jack-o'-lantern keeps the trick-or-treaters a safe distance from your house and is a fine addition to any anti-Halloween arsenal. At the first sign of any sugar-obsessed imp, simply press the trigger button and wirelessly shoot a one-second burst of flames out of the jack-o'-lantern's mouth. This plume of hellfire will make even the most bold of people think twice about approaching your door ...

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Power Laces- the Auto lacing shoe

Also, check out Power Laces: Version 2.0 Why wait until 2015? Inspired by 'Back to The Future II', this project is less 'Practical' than 'Proof of Concept', but hopefully it'll tide you over until Nike comes out with something more polished. This was also the first time I worked with an Arduino microcontroller, and I wanted to get some experience with the little guy. Operation is quite simple- step into the ...

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Sigh Collector

Sigh v. i. [imp. & p. p. {Sighed}; p. pr. & vb. n. {Sighing}.] 1. To inhale a larger quantity of air than usual, and immediately expel it; to make a deep single audible respiration, especially as the result or involuntary expression of fatigue, exhaustion, grief, sorrow, or the like. [1913 Webster] Description: These are instructions for building a home monitoring system that measures and 'collects' ...

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