View source for DOA 7seg 2803

= DOA_7seg_2803 =
LED and 7 Segment Display Controller for displays with Common Cathode.

'''Deprecated Design''', replaced by [[DOA_7seg]] Rev.1


'''Features'''

*for common cathode displays 
*32 displays per board or 256 LEDs or any combination 
*small boardsize: 80x100mm or 1/2 Euro size. 
*dimming possible 
*no ghosting 
*hi current displays supported (25mA max. per segment) 
*all segments individually controllable
**ie. the dot 
**allows you to create certain characters, like a capital 'A' or 'C', a lower case 'd',... 
**individual segments fully controllable by host software 
*of course, instead of 7segment displays you can also use LEDs (8 LEDs instead of one display, 16 instead of two,...) 
*controlled via the PHCC DOA bus with the AP2P Protocol.
**multiple display controllers can be connected to the DOA bus... 
**along with other DOA bus devices (up to 256 devices currently)

==== [[Schematic and Board Layout]] ====
[[Image:PHCC_DOA_7seg_2803_sch.png|thumb|center|500px|Rev.0 Schematic]]<BR>
[[Image:PHCC_DOA_7seg_2803_brd.png|thumb|center|500px|Rev.0 Layout]]<BR>


==== [[Bill of Materials]] ====

The BOM is here: [http://cockpit.varxec.net/electronics/phcc/files/bom_doa_7seg_2803.txt bom_doa_7seg_2803.txt]<br> This list includes prices and links to to online catalogue pages of my primary source of electronics components, [http://www.reichelt.de/ Reichelt Elektronik]