Adunio-like Teensy USB Development Board

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]

The Arduino talking to you

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.

Aoutput from the Arduino webserver

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.