Prototype: Error Messages

Something we missed out of our prototype drawings that is part of the system will be an error message on the LCD screen.

If the user attempts to scan a word the device could not read, or they accidentally press the scan button initiating a new scan when not placed on a word. Then on completion of the scan an error message should be displayed on the LCD screen explaining that the word scanned could not be identified. This way the user can see if the scanner does not know a word.