|From the picture below you'll notice the main parts of the device: |
|The front panel of this model is a very simple one. It has 3 buttons (unused by me), an IR sensor, a 4 digit 7 elements LED display drived by an ordinary shift register (74 HC 164D) and 2 LEDs. Below you may see it:|
|Now, the interesting part is. We'll use the 4 digits LEDs to show the current time provided by the router through Arduino. Basically on the router is an application called each minute from crontab which deliver to Arduino the current time. Arduino catch the message and pass it to the front panel shift register to be displayed on the 4 digits 7 elements LEDs.|
|For this task I've used an Arduino Pro Mini 3,3V with an Ethernet card linked to the router's Ethernet port.
|Ethernet Shield R3||ENC28J60 Ethernet Module|