background preloader


Facebook Twitter

Leapmotion controlled lamp with arduino and node.js. Yun based Electricity Monitor with Cloud Support / Temboo and Google Drive. This Instructable shows how to make an Electricity Monitor for your home that utilises some of the key capabilities of the Arduino Yun that make it an Ideal choice for Cloud Enabled sensor projects such as this. Features : WiFi connection allows continuous monitoring of Power Consumed Utilises TEMBOO for Cloud Support with Google APIs Cloud Support: Writes Power Consumption to a Google Drive Spreadsheet Graphing, analysis etc.. available via Google Spreadsheet A nice feature of the project is that the monitoring is flexible and it's completely wireless (except for the Current Transformer of course), allowing continuous monitoring from a PC or phone and permanent storage on the Cloud.

Measured accuracy was 6% (typical), which is excellent for such a simple circuit. Even better accuracy was observed after calibration. Let's Go.... Arduino Focus. All sizes | Arduino Hole Pattern Dimensions. Android Controlled Bluetooth Sumobot (Ultimate DIY RC! $90) Get ready to rumble, it's time to get pushy! This week I built a $90, Android controlled bluetooth sumobot. This is a fun way to spend time with your friends and engage in multiplayer tournaments! It maybe held on your backyard or even in professional events. The "TSA" & "science Olympiad" also supports sumobot competitions. Quadcopters, Hovercrafts, Drones, Helicopter, you name it, they are getting much more common these days. Challange Mode: Pay 10 php ($0.20), beat the unbeatable autonomous FAC3PALM with CALSONIC, the RC Bluetooth Sumobot. The bot was designed to compete in the autonomous division, I tweaked it just for fun and added a $8 bluetooth module.

You can save $41 by making your own DIY Arduino Motor Shield [for only $8] _______________________________________________________________________ What is a sumobot? Aren't Sumobots Old? How fun are they? The project is so easy even a high-school student can make one :D Please don't forget to vote! Arduino Leonardo Enclosure by Crispy001. PlanetArduino. Arduino board as ATtiny programmer. This tutorial shows you how to wire up an Arduino used as an ISP (programmer) to an ATtiny45 or ATtiny85. To find out how to write code for the microcontroller, see the the tutorial on programming an ATtiny using the Arduino 1.0.1 software (or the older version for Arduino 0022 ). Materials and Tools For this tutorial, you’ll need: Arduino Uno or Duemilanove (w/ an ATmega328, not an older board with an ATmega168) ATtiny45 or ATtiny85 (8-pin DIP package) a 10 uF capacitor (e.g. from Sparkfun or from Digi-Key ) a breadboard jumper wires For more information, see our list of materials and parts and our list of prototyping supplies .

Download and Install the Arduino Software You’ll need the Arduino software (version 1.0.1 or 0022). Turning the Arduino board into a programmer We’re going to use the Arduino board to program the ATtiny. Run the Arduino development environment. Connecting the Arduino board and the ATtiny We’ll connect the Arduino board to the ATtiny as shown in the following diagram. How to make and use the arduino as an Isp for an ATtiny 45/85. Simplest and Cheapest Arduino.

Simplest and Cheapest Arduino. Wireless outdoor Arduino weather station with PC logging and Graphs. I wanted to have a log of outdoor weather with PC logging and graphs for quite some time now. There are such devices in the market but their cost is really high. So, decided to build one by myself and enjoy the experience too. Features Temperature, Humidity and barometric pressure measurement No external power for outdoor sensors required (solar powered) Wireless communication between outdoor sensor and PC Full logging and reporting on weather information on PC Relatively inexpensive and easy to build Code is also available at Components of the solution Arduino compatible Seedstudio Stalker board for remote sensors. XBee based communication between outdoor sensor and PC Solar panel and LiPo battery for outdoor sensor power XBee Explorer connected to PC for communication reception C# based PC application to store, report and graph all data What will you need to build this?

Other Tools you will need: Arduino IDE. Remotely control an rgb led with nodejs and arduino | allTheThings.js. Node.js communicating with Arduino | Barry van Dam – Creative Developer. JavaScript Powered Arduino with Johnny-Five. ← Coding Practices for Writing Web Applications | Why You Should Be Using Aspect-Oriented Programming → Atwood’s Law: Any application that can be written in JavaScript, will eventually be written in JavaScript. - Jeff Atwood, July 17, 2007 Other than the near omniscience of Edsger Dijkstra, I don’t think any prediction of the future of software development has been so dead-on as Atwood’s Law. JavaScript is everywhere: running applications in browsers, running the servers that feed HTML to the browser, and running database engines, to name a few. It should be no surprise, then, that JavaScript can also be used to control off-the-shelf hardware, circuits and other electronics like the Arduino platform. Through the use of frameworks like Rick Waldron’s Johnny-Five for NodeJS, and the “StandardFirmata” software package for Arduino, you can write JavaScript on your computer and use it to control and manipulate nearly any aspect of an Arduino-based hardware setup.

Arduino NodeJS and Johnny-Five. Rwldrn/johnny-five. Neuroduino: A neural network library for Arduino. A Study in Non-Standard Distributed Computer Architecture. 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 that although it does separate the instruction and memory, it also has an important feature that is shared with the Von Neumann architecture, in that since both nodes are identical physically, they are both capable of fulfilling either role, depending on the state that either machine is in at the time of transmission. This platform was designed by Marty Miller and William Tolley, two students at Berea College, and it should be pretty easily extensible. Have fun writing your own programs to be executed by our DoHas system. How to make a remote-control sentient web-puppet by hacking Twitter, Google, Skype, Arduino and Processing!

How to manipulate a physical object over the web just by using common web services and their accessible data feeds, with some added open source stuff to decode and manipulate that data, and ultimately use the data to move and control physical hardware. Twitr_janus - a prototype web-controlled puppet This Instructable describes Twitr_janus - a puppet I made to see if it was possible to mash up free digital web services (Twitter, Google Spreadsheets and forms, Netvibes and Skype) with open source hardware and code (Arduino language and environment, Processing and related Processing libraries) and use them to manipulate an object over the web.

It turned out it was indeed possible! See how Twitr_janus works and see how you can use these ideas to build your own remotely-controlled physical objects. It was built from cheap, easily available stuff, some of it salvaged. I made a puppet, because I just like weird, creepy things. Here's Twitr_janus in action, describing itself and how it works... Fijibot, an Autonomous Solar-Charging Robot. Programming Mathematical Functions with Taylor Polynomials « Bespoke Blog. Taylor Series Approximation of Sine I’ve been thinking of writing an astronomical toolkit for Arduino, to help users build their own go-to telescope mounts, satellite trackers, heliostats, and other cool amateur astronomy equipment. As anyone who has ever worked with astronomical coordinate systems know, since astronomers treat the sky as a 2 dimensional spherical surface, most calculations involving positions on this surface involve a good deal of trigonometry.

While the Arduino library includes built-in functions for sine and cosine, it lacked the inverse trigonometric functions arcsine and arccosine. These are necessary if you ever need to convert a length ratio into an angle. It is impossible to convert between different sky coordinate systems (like Horizontal and Equatorial, the two most common) without access to these functions. Computing Strange Functions Taylor Polynomials Instead, I will be using a trick of calculus developed by Brook Taylor in the early 18th century. Like this: Modules. Complete Numpties Guide to Arduino on Ubuntu 32 & 64 bit.

Big on Pictures, low on words, apologies to those without a decent internet connection. This is a blow by blow walkthrough on installing the latest official Arduino IDE on Ubuntu 10.10. Do not use the one in the repositories especially if you have a later Arduino (Uno or Mega2560) as its out of date and does not work with these later boards. This is a newly installed,all default options, fully updated Ubuntu 10.10 32bit running on a 10 year old heap of junk. (650 Mhz AMD Duron, 256Mb of Ram, 20Gb HDD) It ran Windows XP like a slug on Valium, its not exactly greased lightning running Ubuntu but it borders on usable. Since I first produced this, I have confirmed that the same process works for 64 bit Ubuntu 10.10 with the 64 bit Linux Arduino IDEs This works on a new install, it may not if it has a lot of stuff already added to it,especially if you've been messing around with the repository version or trying to do installs involving root (sudo).

On with the plot. And again : Success !! How-To: Shrinkify Your Arduino Projects. Burning the Bootloader on ATMega328 using Arduino UNO as ISP. UPDATE: This tutorial will work on Arduino IDE 1.0.1, the recent 1.0.5 makes some changes on the ISP sketch so I'm not sure if it will work (I just bought 2 ATMega328 and burned both on 1.0.1). Please use 1.0.1 to eliminate any problems. Click Here I had one remote controlled project that needed an Arduino running 24/7 but I didn’t want to leave my $32 Arduino UNO, so I decided to buy some pieces and created my own Arduino.

The most important part was buying the microcontroller. These were my options: ATMega328P-PU with Optiboot ~ $5.50 (Sparkfun) / $5.19 (Digikey) ATMega328P-PU ~ $3.16 (Digikey) ATMega328-PU ~ $2.88 (Digikey) Obviously I bought the cheaper one, huge mistake. The last two options were missing something called a bootloader. So first if you were to do anything on those microcontrollers you need a bootloader burned on those chips. Well if you see the microcontroller on your Arduino UNO you will find out that it is using the picopower micro, not the normal one. SB-Projects: IR Remote Control. IR Remote Control Theory The cheapest way to remotely control a device within a visible range is via Infra-Red light. Almost all audio and video equipment can be controlled this way nowadays.

Due to this wide spread use the required components are quite cheap, thus making it ideal for us hobbyists to use IR control for our own projects. This part of my knowledge base will explain the theory of operation of IR remote control, and some of the protocols that are in use in consumer electronics. Infra-Red Light Infra-Red actually is normal light with a particular colour. Although we humans can't see the Infra-Red light emitted from a remote control doesn't mean we can't make it visible. Unfortunately for us there are many more sources of Infra-Red light. Modulation Modulation is the answer to make our signal stand out above the noise. In the picture above you can see a modulated signal driving the IR LED of the transmitter on the left side.

The Transmitter The Receiver The End? » Blog Archive » PWM (Part 1) Part 1, 2, 3, 4 PWM stands for Pulse Width Modulation This is a very convenient function for driving high latency loads such as heaters and even light emitting devices or specific modules such as servo motors. The principle of operation consists in applying trains (so as to say cycles) of energy to the load. Electronically speaking, this consists in switching the feeding power supply line on and off. The picture bellow illustrates this principle. In the first case, we adjust the amount of energy (analog mode), in the second case, we adjust the duration of full energy pulses (digital mode).

The advantage of the digital mode lies in the little amount of dissipated energy accross the switching device, which can be one of relays (that’s rough), transistors (better, but Vce is still significant), thyrsitors/triacs and ultimately low drop MOS FETs. Arduino offers PWM outputs which are controlled by the standard analogWrite() Next post on same subject. Blog Archive » Handling external Interrupts with Arduino. Posted by md on December 20, 2006 For my DCF77 clock project, I need an understanding of handling interrupts with the ATMega8 chip – here’s my sketch.

The ATMega8 provides two pins (2 and 3) which can trigger software interrupts when the attached digital signal changes. You can use this to be “notified” when the external signal changes. Therefore, you do not need to poll the pin periodically – the interrupt routine will be invoked automatically when the specified signal change happens. In my case, I want to be notified when the DCF77 signal changes, so I need a simple way to exchange the current value of the pin.

Here is the sketch: In the main loop, the value gets interpreted, but not read. The wiring for the testing is rather simple: Use a breadboard and power it from the Arduino. If you speak german, I highly recommend the “AVR-GCC Tutorial” of SingleServoExample. Introduction This tutorial explains how to control a servo from your computer using arduino, processing and Arduino Diecimilia. Don't be fooled, almost none of this is my own code. I've just done all the cut and pasting for you :p This example uses the Software Servo Library. Connections It's really very simple to connect the servo to the arduino board. See the pictures: Power Connect the red from servo to +5V on arduino. Ground Connect black/brown from servo to Gnd on arduino. Signal Connect white/orange from servo to Analog in 0 on arduino. Arduino code This code is the same as in Software Servo Library.

For this code to compile succesfully in arduino, you'll need the code: The contents of that zip-package go into arduino-xxxx/hardware/liraries-directory. Processing code. Servo pwm. FiniteStateMachine Library. I will be maintaining my libraries here: I am the lead developer for libraries that ship with the Wiring distribution.

As per version 1.0 - Wiring will support Arduino boards. You are welcome to check it out! Finite State Machine Library for Arduino Author: Alexander Brevig Contact: 1.7 2010-03-08: Fixed a bug, constructor ran update, thanks to René Pressé 2.0 2013-02-08: LINK: Versions fixed for Arduino 1.0x Terry King Finite State Machine Description A FSM serves as a manager that organizes a set of states, or behaviors. FSM Library Description FSM is a library for the Arduino. It is created to help organizing and standardizing the way a FSM could be implemented. This library expects all functionality to be coded in the sketch, and the State class will simply use callbacks to simulate functionality.

//TODO - extend this section, contact if urgent State Creation. Blinkenlight | 20 LEDs are enough. Persistence of Vision | Blinkenlight. Dr. Monk's DIY Electronics Blog: Arduino Timer Library. Electronics : Microprocessors : Interrupts. - arduino-timerone - TimerOne-v9 - Timer One Library for Arduino. Arduino-pinchangeint - For maintenance and development of the PinChangeInt library for the Arduino microcontroller environment. The letters 'S': Arduino – Serial Communication. Jrowberg/i2cdevlib. Arduino – Redefining the TV Remote. Wide field 4D optical flow odometry using Arduino and Stonyman image sensor. I2C Device Library. Projects:lcd_module - ArduEye | Main / Welcome to the ArduEye Wiki! Arduino Tutorial - Lesson 3 - Breadboards and LEDs. Webduino - Simple and extensible web server for Arduino and Ethernet Shield.

ServDuino – construire votre propre Arduino Web server. Arduino Sprinkler System + Web control. Arduino sprinkler valves + wifi + twitter. Serial Monkey - EmbeddedSand. New in the Maker Shed: Solder:Time II Watch. Fmalpartida / New LiquidCrystal. IIC/I2C/TWI Serial 2004 20x4 LCD Module Shield For Arduino UNO MEGA R3 SainSmart. Playground - ProcesssHackForFirmata. NFC Shield. Arduino NFC Shield - SmartCardReader (ISO 14443, 18092)« IT-Sicherheit« Programmierung« Elektronik. Digispark - The tiny, Arduino enabled, usb dev board! by Erik Kettenburg. Arduino FSK RF Shield 315 / 433.92 / 868 / 915 MHz Shield - Arduino - Arduino FSK RF Shield 315 / 433.92 / 868 / 915 MHz - ALT Electronics Arduino RF Electronics Projects.

Arduino FSK RF Shield 315 / 433.92 / 868 / 915 MHz Shield - Arduino - Arduino FSK RF Shield 315 / 433.92 / 868 / 915 MHz - ALT Electronics Arduino RF Electronics Projects. Programming an ATtiny w/ Arduino 1.0.1. ToBreadboard. Arduinoscope - Oscilliscope and logic probe using arduino and processing. A Touchless 3D Tracking Interface. Make-Magazine/3DInterface. Build a Touchless 3D Tracking Interface with Everyday Materials. Arduino Morse Code generator.

Arduino Tiny Web Server - BlinkLED project. Main Page - Firmata. Download. Adafruit Make It Tweet Challenge ENTRIES RATING. Access control with Arduino + Keypad 4x4 + Servo. We interrupt this program to bring you an Arduino interrupt tutorial. Optical mouse hacking, part 1 « Department of New Computings. The World Famous Index of Arduino & Freeduino Knowledge.