andrebmsilva:
And what about using RFID to identify the employees and BarCode for the products?I've searched on ebay and would this do the job? (barcode reader + Usb Host Shield)
http://tinyurl.com/factoryprojectbarcode
http://tinyurl.com/factoryprojectUsbHostShieldThanks
There are also serial barcode-readers available. (without the need for an usb host shield)
The perfect scenario: sending the information over ethernet/wifi to a computer in real time. (excel, txt, etc)
The scenario i wouldn't dismiss: using the microSD card reader in the ethernet shield to store sometype of "log's" or something readable.
You can combine both.
Use the SD card to store your data on and use the ethernet shield to display the contents of the card on a webpage.