We’re not sure, but the number of recognizable alphanumeric characters that a seven-segment display can manage seems to have more to do with human pattern recognition than engineering. It takes some ...

Code 3 Inc. introduced the Message Board — an essential safety item for all applications including emergency response vehicles and supervisor’s vehicles. The Message Board display utilizes an ...

The NYPD is improving its communications skills. With LED signs. New York City Police Commissioner Raymond W. Kelly on Tuesday announced that the NYPD is equipping police cars with a scrolling blue ...

I just aquired the above message board but it has come without the programing device.<BR><BR>However it has an 9 pin serial port and I found the following pinout on a ...