This project refers to an Arduino sketch which has the capability to send measurements collected by a light sensor to an account at Twitter to be seen by many through the World Wide Web.

The transmission is controlled on Arduino’s side with a special button. The Arduino is connected to the Internet with a special Ethernet card (Ethernet Shield). The Internet connection is via DHCP to a nearby router. Also, the Arduino collects enough samples from the light sensor and sends the average value on Twitter for best accuracy.

It is worth mentioning that if you unplug the Ethernet RJ-45 cable and then reconnect, the Arduino continues to operate without any problems. Finally, there are LED indicators that inform about the success or failure of sending a message to Twitter.

For more information you can get the project itself:


Various images of the application: