Hi,
This is simple one nybble (4 bits) scrolling displays. it uses all basic logical components. like:
1.) Power supply (12V).
2.) Clock pulse ( 555 IC).
3.) Decade counters ( 4017 IC).
4.) Couple of AND GATES ( CMOS 4081/ TTL 7408).
5.) SEVEN Segment display (as per message).
6.) BCD to SEVEN Segment Driver ( IC TTL 7447/ CMOS 4011).
7.) OR GATES (7432).
8.) A wire, PCB, switches, etc
http://www.youtube.com/watch?v=C9WN89WEUnw&feature=player_embedded
http://www.youtube.com/watch?v=nNYkSOEkZ2g
http://www.youtube.com/watch?v=g_Rc8HM42Zg&feature=mfu_in_order&list=UL
This is simple one nybble (4 bits) scrolling displays. it uses all basic logical components. like:
1.) Power supply (12V).
2.) Clock pulse ( 555 IC).
3.) Decade counters ( 4017 IC).
4.) Couple of AND GATES ( CMOS 4081/ TTL 7408).
5.) SEVEN Segment display (as per message).
6.) BCD to SEVEN Segment Driver ( IC TTL 7447/ CMOS 4011).
7.) OR GATES (7432).
8.) A wire, PCB, switches, etc
http://www.youtube.com/watch?v=C9WN89WEUnw&feature=player_embedded
http://www.youtube.com/watch?v=nNYkSOEkZ2g
http://www.youtube.com/watch?v=g_Rc8HM42Zg&feature=mfu_in_order&list=UL
these all video will tell working of this projects.
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