| ??? 04/13/05 00:26 Read: times |
#91481 - MAX7219 Responding to: ???'s previous message |
Can someone elaborate on use of the MAX7219? I printed out the data sheet and read all the previous posts in this forum on it, but am still a bit unclear on its use.
First, what should I use to drive the additional current needed for my large displays? Would a 2N2222 do the trick? Second, could someone elaborate on how a single 7219 could drive eight seven segment displays? Is this performed in coding? If I understand correctly, say I sent a BCD "1" down the serial line. How do I then tell the 7219 that this byte of data should go to display number 4? If I understand correctly, this is accomplished through the use of the NO OP command, but if anyone could elaborate I would appreciate it. |
| Topic | Author | Date |
| Seven Segment Displays Driven By 8051 | 01/01/70 00:00 | |
| Maxim part | 01/01/70 00:00 | |
| Integrated MUX drivers are 5V only | 01/01/70 00:00 | |
| Confused | 01/01/70 00:00 | |
| Multiplexing 7-segment LED displays | 01/01/70 00:00 | |
| rate of multiplex | 01/01/70 00:00 | |
| Yes, of course, | 01/01/70 00:00 | |
| Further Clarification of My Project | 01/01/70 00:00 | |
| nobody can answer that | 01/01/70 00:00 | |
| No 373s! | 01/01/70 00:00 | |
| Ohhh! Pretty NM | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| MAX7219 | 01/01/70 00:00 | |
| Like this | 01/01/70 00:00 | |
| current? | 01/01/70 00:00 | |
| LSD23255-10 Display Specs | 01/01/70 00:00 | |
| data sheet? | 01/01/70 00:00 | |
| GOOGLE!!! | 01/01/70 00:00 | |
| Multiplexing | 01/01/70 00:00 | |
| Drivers | 01/01/70 00:00 | |
| 74hc595 alt. | 01/01/70 00:00 | |
| TPIC6C595 by TI? | 01/01/70 00:00 | |
Thanks. | 01/01/70 00:00 |