USB Game Pad With Tilt-accelerometer Mouse using an Arduino

Make a game pad with an accelerometer inside! This project tutorial will show you how you can convert a console game pad into a USB keyboard mouse for playing games on your PC. The USB game pad can be used with nearly any software, such as a MAME emulator, game, simulation software, or for custom user interfaces. We'll start by turning the buttons of the game pad into keyboard buttons, so that pressing 'up' ...

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Connecting a 12V relay to Arduino

To connect a 12V relay to the Arduino you need the following things: - 1 Arduino - 1 diode for example 1N4007 - 1 NPN transistor for example 2N2222 (in the US) or BC548 (in Europe) - 1 relay for example one with coil voltage 12V and switching voltage 125VAC/10 A - 1 multimeter Step 1: Measure the coil resistance We are going to measure the coil resistance to calculate the current. First we must find the coi ...

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Driving multiple Sparkfun 7-segment displays with an Arduino

I'm currently helping a couple of engineering students finish a senior project that didn't get finished last year. Long story... Anyway, it's a bicycle brake tester being built for Paul Components. The mechanical design is great, but they had trouble with the electronics. Part of those electronics involved writing numbers to a pair of Sparkfun 7-segment displays. There's a lot of discussion on the Sparkfun ...

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ISP Clip for ATtiny44/84 (or others!)

I got my start in microcontrollers with the Arduino, as many of us outside of electrical engineering did. (And still do!) The ease of programming that little board makes it a great gateway... and like any gateway, sometimes you go through. Most of my projects now don't use Arduinos directly. For simple microcontroller applications, it's much more cost-effective to use a bare microcontroller selected for the ...

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Lithium Battery Solar USB – iPhone – Arduino Charger

One of the most fun and useful projects on instructables is to create your very own solar USB/ iPhone charger. They're not overly difficult to make, nor are the parts overly expensive or hard to find. For the most part they do a rather good job of charging up small gadgets. Mostly. The big flaw in the DIY solar charger world are the batteries. Nearly all the designs on instructables (including all of my des ...

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ATtiny85/45/25 LED dice

If you have looked at my 5 LED ATtiny85 POV display, we programmed the ATtiny with the Arduino. (If you haven't seen it, click here) We will be doing the same thing for this LED Dice project. The total parts cost for this project is about $5-$10. (Not including the Arduino board and the tools.) It is super simple to make, so don't worry if you don't have a lot of programming/ electronics experience. This is ...

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How To Interface a CDV 700 Geiger Counter to a PC Using an Arduino Video instrucitons

How To Interface a CDV 700 Geiger Counter to a PC Using an Arduino (Part 1) The second part of our video series of our project to interface to a CDV-700 radiation meter using an Arduino Uno! How To Interface a CDV 700 Geiger Counter to a PC Using an Arduino (Part 2) Code: A video on our project to interface to a CDV-700 radiation meter using an Arduino Uno! Here is the code mentioned in the video: int count ...

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Color Changing LED Tree

Ever wanted an LED tree? Well now you can have your LED tree and eat it too (no, wait, you probably shouldn't).. Step 1: Gather the parts You will need: 1x ATtiny85 10x male header pins Solid core wire, 2 colors A bunch of LEDs 1x Arduino Uno to program the ATtiny Step 2: Program the ATtiny To prep the Arduino for programming the ATtiny, follow the guide on this page. After you have done that, upload this s ...

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A Study in Non-Standard Distributed Computer Architecture using Arduino

In the following tutorial, directions are given for creating a single node for the DoHas (Distributed Optical Harvard Architecture System). After constructing two of these nodes, a small distributed computer can be implemented which uses one node for sending instructions, mimicking input and the instruction set to manage it, and another node which will act as memory. One unique feature about this system is ...

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Programmable auto filter interface for C64 using Arduino

Overview A software / hardware combo that allows for control of the analog filter inside a Commodore 64 that is running Cynthcart from a host computer (eg, Macbok, PC). Software • 16-step filter sequencer • Set the speed of the filter sequence (with intervals between values reaching 2ms) • Set the length of the sequence from 1 to 16 beats • Offset value allows for shifting the filter values up or down on a ...

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Joystick controlled Camera using Arduino

Hi, First of all, my English is not perfect =) I've seen many projects with Arduino that describes how to control 2 servo's with a joystick or use a lcd screen. All of the projects that i have seen are all seperate things. So i decided to make a short Instructable of these things combined. In this instructable is everything you need! Drawings, schematics, pictures and even the Complete Code that i've mostly ...

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SuperScope: Circuit Simulation through Arduino-Processing Interface

nto the program where you can physically manipulate them. Arduino tests for the value of the component (a capacitor, inductor, resistor, or waveform of specific frequency) then sends the data to Processing. Imported components can then be plugged into circuit schematics. SuperScope builds upon the mission of Arduino, the interface between hardware and software, analog and digital. SuperScope provides the us ...

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