Great product for large message displays...
For LED 32x8 matrix display board for Arduino, ARM
More and more Christmas displays use FM radio frequencies to broadcast the audio associated with their Christmas creations. Most have a static sign providing the frequency to use to hear the music. With all the technology that goes into a Christmas production, it seemed weak to resort to a 2x3 sign to communicate the frequency. If the frequency had to be changed due to noise or other interference, you would have to recreate a new sign. My fix was to create a message
display box to communicate the frequency and any other messages that may be helpful to those viewing the "shows".
My box consists of three 32x8 LED Matrix Display boards butted horizontally and daisy chained to create a 1 x 12 character display. To drive the display I used an Arduino UNO or equivalent and the LMXShield (from iSyst.com). The messages I can display (beyond just an FM frequency) are things like show times, and other "teasers" (such as the phrase "Listen to the Lights"), etc. Between shows I display the date, time, and temperature. I use the display box for these simple messages. There are many other messages that can be displayed, such as the name of the tune playing, the next show sequence start time, etc. The sweet thing about the display is that I can change it instantly ... I don't have to recreate a new sign!! I can scroll the message, flash it, and blank it out.
