Showing posts with label LED matrix circuit schematic 5x7 PIC 16F887 Video. Show all posts
Showing posts with label LED matrix circuit schematic 5x7 PIC 16F887 Video. Show all posts

Saturday, September 17, 2011

LED 5x7 Matrix

So, after getting my PICKIT all set up I decided to put together a small 5x7 Display.   The LED matrix is from an banner board I found in the trash,  with all of the original traces dremaled out and my own wires connected. Was alot of work considering I could get a new one prewired for like $2.00 online, but I didn't know that at the time. Its controlled by the PIC16F887 which is overkill for sure but its the only chip I have right now.
Schematic for display.  Or just buy one.                    
                                        
The display does a couple simple patterns then displays the message "PARTY!" Both columns and rows are activated by a low (0V) signal using PNP transistors. I have the code and schematic but I can't find my memory stick right now so I'll have to upload it later.

Here is a youtube video I put together for it.