Saturday, October 30, 2010

Remote control the Arduino from the web!


This project is very inspiring! It is an Arduino project that has two LEDs on green and one red that are controlled via a local web server (AKA my Mac’s Apache Server). The web server is hosting a PHP script that has a user interface. When I click a link it sends a command to the Arduino board to turn on or off each LED. The Arduino board must be connected to the computer that has the web server on it for this to work. The PHP code is open source as well as the library/class that I have used.

The Motion Picture Industry Using Arduino?

Welcome to OpenMoCo, a community site for Open-source Photographic Motion Control technology. Our focus is to create open-source solutions for motion control in photographic techniques including time-lapse, gigapixel panoramas, focus stacking, live video, and just about anything you can think of. Here, you can interact with other people working on their own motion control systems, share software or hardware designs, and get help in creating a motion-control system that meets your needs. We believe in complete compliance with the Open-Source Hardware Definition.

Friday, October 29, 2010

What's with the Arduino, Anyway?

Looks like someone else got bit by the Arduino bug!

What’s bizarre is that it’s so much fun. I mean, I’ve built large, complex websites with tens of thousands of lines of code that use a dozen different languages, frameworks, and technologies. So how come writing 6 lines of code to make a stupid little LED blink makes me grin like an idiot?

Thursday, October 28, 2010

The Arduino / Paypal Vending Machine

Ran across this neat article and video at Make Magazine. They attached an Arduino to a candy vending machine, and connected it to the internet so you can pay for the candy using paypal. A fascinating and intriguing project: - While walking the show floor at the PayPal X Innovate 2010 developers conference today I came across this cool PayPal vending machine prototype. Ray Tanaka and his crew at PayPal Labs hacked together the multi-part system using a mechanical candy dispenser, a couple of Arduino Duemilanove, aWiShield, relay, proximity sensor, and LED display. The end result allows you to scan a QR code, make a payment, and acquire munchies using a smartphone. As you make your payment, the machine will tweet your purchase and notify a confirmation display.

Wednesday, October 27, 2010

And the Winner of the Free Arduino UNO is?

Congratulations, Michael Van Varenberg, you have won the free Arduino Uno. Mark from Hacktronics will be contacting you shortly for your shipping info. For those less lucky (this month), check out the starter kit which now includes the new Uno. The new freebie for next month is a Ethernet Shield. Participate at to be eligible for the drawing.

Processing: The Power Behind the Arduino

The arduino is great for interfacing with sensors, but lacks the horsepower of a PC. One of the projects we are working on is a solar / wind data logger, and I'd like to save the results in a database and be able to graph trends over time. This is best done on the PC. Fortunately, I can write programs on the PC, to interface with the Arduino, in the same language I use on the Arduino. This language is called Processing. I can also interface with my Apache web server, and use my PHP/MySql abilities to display the results to the rest of the world.

Monday, October 25, 2010

Measuring Air Flow

This sensor reminds me of an automotive mass airflow sensor. - The Wind Sensor is a thermal anemometer based on a traditional technique for measuring wind speed. The technique is called the “hot-wire” technique, and involves heating an element to a constant temperature and then measuring the electrical power that is required to maintain the heated element at temperature as the wind changes. This measured electrical input is then directly proportional to the wind speed. Hot wire anemometers are available in hand-held packages resembling multimeters, but this is the first small sensor suitable for electronic experiments.

LED Pumpkin Light controlled by Arduino

Want a pumpkin light that turns itself on at night, off during the day, and flickers like a candle? Here's a great Halloween project.