Archive for January, 2009

This is a Twitter clone written in php – it is actually quick to install, and seems to work.

Grooner: The Microblog v0.9.2b
Have you ever wanted a microblog like the now world famous Twitter? Now you can. Start your own microblog website and have fun doing it! Screeners

[From Groone’s World Development]

This is quite good – a tiny Arduino (almost) compatible board for the projects where the Arduino is too big (and where you do not need shileds):

Teensy USB Development Board

The Teensy is a complete USB-based microcontoller development system, featuring a 16 MHz AVR (AT90USB162) processor, in a very small footprint! All programming is done via the USB port. No special programmer is needed, only a standard “Mini-B” USB cable and a PC or Macintosh with a USB port.
Key Features:
USB can be any type of device
21 I/O pins
AVR processor, 16 MHz
Single pushbutton programming
15.5K usable Flash memory
HalkKay bootloader
Free software tools for Mac OS X, Linux & Windows
UART, SPI, 4 PWM, 2 timers
Tiny size, 1.2 by 0.7 inch
Very low cost, only $19


[From Teensy USB Development Board]



Just for the interest value – one set of stats I found for a site I know very well


(Click for larger)

Check the number of pages being crawled by Google per day just form this website – btw. amounting to 4 Mbit/s 24 hours/day.

This link will display the result of a PHP script that in turn contacts the webserver on a Ardunio running in my garage to tell you what the temperature and humidity is out there.

In reality the Arduino webserver return the state of all its analogue and digital inputs, in addition the the results from a sensor mounted on a prototyping board (a shield in Arduino speak) – and the PHP script filters out all the other data before it serves the webpage.

It has been sitting there for 3 days now – and so far no problems.

The hotel can supply a emergency tooth brush and tooth paste


Vienna last night

IMG_0074.JPG IMG_0075.JPG IMG_0076.JPG

The Twitter php libraries on the site below are extremely easy to use – and even better, they actually work :

Twitter for PHP
Twitter for PHP is a very small and easy-to-use library for sending messages to Twitter and receiving status updates.

[From Twitter for PHP » phpFashion]

And the webserver on the Arduino now shows :


This means that I can now read this from the server – and parse it there to do any processing I want to do. I want to limit the amount of processing I need to do on the Arduino itself to the bare minimum, and do all the complex stuff on the server, which has lots more room for software and data.

Another small step for mankind – I can now communicate with the Arduino in the garage, and I can now read the data of the temperature and humidity sensor on the board :