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Arduino hacks

Arduino hacks

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Internet Radio player using a NSLU2 nas-device Inspired by MightyOhm's ( wifi radio, I started my project using a nslu2 "slug" as the basis for an internet radio a few weeks ago. I wanted to build a tuning device so I could listen to radio without using any pc, monitor or keyboard. - Tuning as well as setting the volume should be done the old fashioned way by turning a knob.- Seeing the station name on a display would be nice, but not a must- Device should have a built in amp with a speaker (sound quality not important at the beginning)This is how the "Slug Radio" looks at the moment:

ShiftOut Learning Examples | Foundations | Hacking | Links Started by Carlyn Maw and Tom Igoe Nov, 06 Shifting Out & the 595 chip At sometime or another you may run out of pins on your Arduino board and need to extend it with shift registers. This example is based on the 74HC595. The datasheet refers to the 74HC595 as an "8-bit serial-in, serial or parallel-out shift register with output latches; 3-state."

AccelStepper: AccelStepper library for Arduino This is the Arduino AccelStepper library. It provides an object-oriented interface for 2, 3 or 4 pin stepper motors. The standard Arduino IDE includes the Stepper library ( for stepper motors. How To Use App Inventor With Arduino UPDATE 23-12-2013: changed their whole website… So the source file that previously you could use to edit on their website, only works with AppInventor version 1.0 or also called classic that you can see here Click the button: “Invent your own Apps now” . This project still works just fine with my app and with my Arduino code. But you can only edit the source code on Appinventor classic version. I’ll try to update the source code in the next 4 weeks or something. Drive a webpage in real-time using Arduino, SensorMonkey and Processing.js Remote visualization of real-time sensor data. This tutorial describes in detail how to use the free SensorMonkey service to push real-time sensor data from an Arduino to a webpage for visualization using Processing.js. No server-side coding or Ethernet shield is required. A standard, run of the mill Arduino will work perfectly. You'll also need a sensor to sample some values. I use an accelerometer, but anything will work (a potentiometer, a gyroscope, a tilt sensor, a temperature sensor, a light sensor etc.).

Arduino to Twitter over USB - There are many reasons to want a project with the ability to provide status feedback. One useful method for providing feedback is by posting updates to Twitter. This enables one (or many people) to monitor a system from anywhere. Single-board microcontroller A single-board microcontroller is a microcontroller built onto a single printed circuit board. This board provides all of the circuitry necessary for a useful control task: microprocessor, I/O circuits, clock generator, RAM, stored program memory and any support ICs necessary. The intention is that the board is immediately useful to an application developer, without them needing to spend time and effort in developing the controller hardware. As they are usually low-cost hardware, and have an especially low capital cost for development, single-board microcontrollers have long been popular in education.

Introducing GertDuino Gert van Loo is one of the Raspberry Pi Foundation’s earliest volunteers. We wouldn’t have a Raspberry Pi without Gert; he did the hardware engineering for the alpha boards which turned into the eventual Raspberry Pi you’ve got on your desk/taped behind the TV/in your ping-pong robot today. Gert created the Gertboard – our favourite GPIO expansion board – shortly after we launched Raspberry Pi. Besides these personal projects he still volunteers with us: he’s a forum mod, he worked on the Raspberry Pi camera board, he’s working on kids’ electronics kits for the Pi with us, and he dropped by the other day to show me a few of his latest projects, including GertDuino. We’re very excited about GertDuino. How’s the weather? TMP102 The TMP102 is a very simple, yet accurate, ambient temperature sensor which is capable of detecting .0625ºC changes between -25 and +85°C, with an accuracy of 0.5°C. And the real kicker… It does all of this while only consuming 10µA (10 millionths of an amp). The thing is quite tiny, so SparkFun has put it on a breakout board to make things easier. Naturally, you probably already ordered a few of these for your room-to-room sensor-network to prove to your landlord that the heat is dropping below the agreed temperature. Wait… That’s just me?