| ??? 06/30/06 12:42 Read: times |
#119423 - IF you multiplex Responding to: ???'s previous message |
the basics is to select one digit and at thet time provide the segment display data for that digit.
IF you multiplex, nobody has stated "you MUST" multiplex. There are oodles of bunches of ways to drive LEDs, some use multiplex, some don't. One often overlooked effect of multiplexing is that you must choose LEDs that are n times brighter than you need when you multiplex. n = number of LEDs multiplexed. There are designs where a standard gate had enough oomph to deliver the necessary power for the LEDs when not multiplexed. Changing such an app to high power drivers and multiplexing plus a more powerful LED often is counterproductive costwise. Erik |
| Topic | Author | Date |
| 4 digit 7 segment display | 01/01/70 00:00 | |
| Didn't search first | 01/01/70 00:00 | |
| 4 digit 7 segment display | 01/01/70 00:00 | |
| Also search for BCD | 01/01/70 00:00 | |
| WRONG | 01/01/70 00:00 | |
| Not necessarily. | 01/01/70 00:00 | |
| clarification | 01/01/70 00:00 | |
| HOW TO PROGRAME | 01/01/70 00:00 | |
| no help whatsoever | 01/01/70 00:00 | |
| Not intended to help? | 01/01/70 00:00 | |
| regardless of what the purpose is, uncom | 01/01/70 00:00 | |
| Try shift registers | 01/01/70 00:00 | |
| Datasheets | 01/01/70 00:00 | |
| Datasheets | 01/01/70 00:00 | |
| It's homework time again! | 01/01/70 00:00 | |
| time AND piece? | 01/01/70 00:00 | |
| No, but few jobs are one or the other | 01/01/70 00:00 | |
Chat Groups | 01/01/70 00:00 | |
| No reply from original poster | 01/01/70 00:00 | |
| I'd go one step further | 01/01/70 00:00 | |
| use duglas hall.. | 01/01/70 00:00 | |
| IF you multiplex | 01/01/70 00:00 | |
| the dangers of specific advice | 01/01/70 00:00 | |
| sorry Erik... | 01/01/70 00:00 | |
| no need ... | 01/01/70 00:00 |