| ??? 05/16/06 07:11 Read: times |
#116286 - how many LEDs Responding to: ???'s previous message |
hi,
this post is slighty not-at-topic but just for interest. If your MCU supports direct LED connecting and selectable open collector mode as well (for example, SiLabs one) then you may use next schematic taken from http://www.disall.narod.ru/ In fact the max. number of LEDs vs used pins: Pins: 2 3 4 5 6 7 8 Max.LEDS: 2 6 12 20 30 42 56 Regards, Oleg |
| Topic | Author | Date |
| Interfacing a Bi-colour LED | 01/01/70 00:00 | |
| a link to the bi-color LED datasheet | 01/01/70 00:00 | |
| Datasheet!! | 01/01/70 00:00 | |
| LED info | 01/01/70 00:00 | |
| He is right, the Vf max for the LEDs you | 01/01/70 00:00 | |
| More info on H bridge? | 01/01/70 00:00 | |
| that is what a H bridge usually is used | 01/01/70 00:00 | |
| be careful, but roll-yer-own | 01/01/70 00:00 | |
| Why no use a DPDT 5VDC relay? | 01/01/70 00:00 | |
| LED go poof | 01/01/70 00:00 | |
| Port pin go POOF! | 01/01/70 00:00 | |
| ?` | 01/01/70 00:00 | |
| Two inverters | 01/01/70 00:00 | |
| darn | 01/01/70 00:00 | |
| YES! | 01/01/70 00:00 | |
| Third color possible? | 01/01/70 00:00 | |
| Very nice however | 01/01/70 00:00 | |
| Two NAND's? | 01/01/70 00:00 | |
| how many LEDs | 01/01/70 00:00 | |
| a slight problem | 01/01/70 00:00 | |
| dynamic refresh | 01/01/70 00:00 | |
sure, but | 01/01/70 00:00 |